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GE LBIs available at www.repeater-builder.com The 'MASTR' Index of GE LBIs Hosted at www.repeater-builder.com Compiled by Mike Morris WA6ILQ Maintained by (No, LBI does not stand for 'little bits of information'). An LBI is a GE radio technical manual section.

The term comes from the phrase 'Lynchburg Book (of) Instructions.' Lynchburg, Virginia has been the home of GE's land mobile radio division since 1958. The original prefix (up to about 1947) was GEI, for General Electric Instructions.

At that time they became EBI for Electronics (Park) Book of Instructions until 1958, which is when the plant moved to Lynchburg. DO NOT use the information provided herein to promote your eBay Auction (click, then email the site owner, see the bottom of this page.) Please read this introductory section (at least once.) Among other things, it tells you how to search the index. This web page is an index of the available LBI files here at www.repeater-builder.com. There are over 1,700 files listed here, occupying almost 2 GB of server space just by themselves. This collection was assembled by merging the personal collections of a number of fine folks plus individual donations from others, none of whom cared about public recognition.

Despite that, here's a public 'Thank You' - you know who you are. This is one of the very few pages on this web site where individual donors are not listed - this is because over 70% of the LBIs were donated by folks that wanted to stay anonymous. Do you have a file cabinet full of LBIs? If so, please check out. Everything listed on the wish-list page is something that someone has asked for, or we have noticed is missing from the LBI master list.

• Both motors in the vacuum are the same motor On the serial plate the model number reads as follows: s4for. It also advises. We're buying a new home and are interested in the Silent Master, However, our builder offers Nutone as it's only central vac brand option.
• Know your Part/Model number. Please specify a Model Number or Product Type to continue. Don't know your model number? -Choose Product Type-, Power Unit. Select Model Number. Please specify a Model. VacPan (White) 016950. Shop Now Cloth Tool Caddy (Gray) 045025. Shop Now Premier Tool Kit (Gray).

If you have one of those, please loan it to us. I will put you in touch with a volunteer with a top quality scanner (look at any page noted as 'Full Page' for the quality of work that he does) who will scan your LBI and return it, and the resulting PDF file will be added to this page. And if you would like us to have us add something to the wish list page just drop a note to with a subject line referencing the 'LBI Wish List'.

Note that all I can do is add your request to the wish list. This web page, by itself, if printed, would be over 100 pages - and it's just the index. You can download a local copy of any LBI file onto your machine by just right clicking on the file link and select 'Save As'.

To view and/or print these files you will need. Depending on who scanned the files, some are not as good or clear as others. Sorry, but that's the way it is - all we can post is what we are given. The best results come from folks that loans us an actual paper LBI in good condition. In that situation we can use the top quality full-page scanner that has been made available to us, and produce the best image, as well as scan each schematic pull-out sheet as a single ultra-wide page.

In contrast, folks that have a standard narrow single page scanner have to scan the wide pages in multiple scans that you will have to individully print and tape together (or use 'stitching' software to merge the individual scans into one wide scan). If you have problems printing one of the ultra-wide pages please see the comments in the paragraph below (the one titled 'You can create.'

) Note that there is no one single manual for any GE radio. The complete 'manual' for any specific station (base or repeater), be it a MASTR II, a MASTR Exec, a MASTR Pro, etc.

Is a stack of LBIs and will have a 'title page' or 'cover page' or 'a table of contents' LBI as the first page (for example, look at LBI-30055). That cover page LBI will list a half-dozen (or more) additional different LBIs, depending on functionality and features - which is why many 'manuals' took the form of three-ring binders - complete with a configuration page in the front (listing the positions of the various option jumpers) and a maintenance log in the back. There will be one LBI for the transmitter exciter, another one for the transmitter power amplifier, another one for the control board (or control shelf if it's a station), another one (or two) for the RF and IF sections of the receiver, another one for the audio squelch board, another one for the Channel Guard™ board, another one for the mobile control head, plus one for each option like dual front end, etc. Even the mobile manuals started with a title page LBI covering a collection of LBIs (again, sometimes in a 3-ring binder). There were separate LBIs for the exciter, the power amplifier, maybe three or more LBIs for the receiver, another one for the control head, speaker and mobile microphone, plus LBIs for any option(s) such as Channel Guard, channel scan, siren/PA, etc. You can create your own custom manual for your radio - just start with your product line name (i.e. MASTR II) and your Combination Number (from your radio nameplate).

Then go to the appropriate, (for example PC67) and look up the Combination number. That will give you the master LBI number for your radio (the top-level table of contents). Look that LBI up and print it. That gives you a 'shopping list' of component LBIs.

Go print each one of those. In most cases they will not reference any more LBIs, but if they do, add those LBIs to your shopping list. If any of the LBIs are noted as 'Full Page' you will want to copy them to a floppy or on a USB flash drive (also known as a thumb drive or pen drive), and take them to a printing place that has a roll feed printer (any big copy shop or any graphics shop).

Just call around and ask if they can print PDFs from a USB flash drive to a roll feed printer. Some places will let you email them the file. Once they have the file you can tell them to print specific page numbers. 'Kinko's' is one well known copy shop chain that has roll feed printers at about 1/3 of their stores (i.e. One in every major area). They started on the west coast and are now nation wide.

(Update: Kinko's was purchased by FedEx in 2004 and as regular maintenance replaces building signage they are slowly dropping the Kinko's name and the newest signs I've seen have the name 'FedEx Office'.) Unfortunately, not all the LBIs you need may be here (that's where folks that are willing to loan their paper LBIs to us for scanning can now step up to the plate). Sometimes you can work around a gap - if the carrier squelch audio board isn't in our library, and the CG one is, then you will have to make do with the CG one until you can locate the one you need.

Any missing LBIs that we know of are on, if you stumble across another one please drop a note to and let us know. When you do, please let us know the LBI number and what it is for - something like 'LBI-30766 for the Porta-Mobil II audio-squelch board'. This is a work in progress that started in early 2004. We know that this collection has some gaping holes. If you have any LBI files that we don't, or if you have an LBI file that is better that the one we have (clearer scan, newer version, or perhaps more complete, etc.) or have any other comments or additional info please send an email to with a subject line referencing this page.

Something like 'LBI page info', 'new LBI file donation', 'replacement LBI file donation' or something like that. DO NOT just blindly send the LBI files - please drop a note first. Or you can drop a CD in the snail mail.

If you are looking for an Ericsson-numbered document then this writeup may help. Their numbering scheme is very different:. Before you pick up a soldering iron, I suggest that you read. Searching the index: This web page can also be used to look up LBIs, individual board numbers (such as 19A, 19B, 19C, 19D, 19E or 19J items) or the GE Datafile Folders. Just use the text search feature built into your browser by hitting Ctrl-F and typing in the text you are looking for - 'MASTR II', 'MVS', etc. As I built this page I had to open up and look at each LBI and I tried to grab the relevant numbers.

Comments and corrections are welcome if you stumble across something that should be in the descriptive text, or if I missed something. When you search I suggest that you search this entire page, don't just stop with the first hit - go all the way to the end. There maybe more than one mention of a board and you may want to look at each one - the same receiver IF board, for example, could have been used in a number of different radios, and the first one you find may not be the exact version of the board you have in your hand. Or another hit further down in the list may be a later LBI version, and have an update notice embedded in it.

Or there may be a later LBI that replaces the one you are looking for, or a newer revision (example: scroll down to LBI-30027 - it replaced LBI-4561, and later on LBI-30027 itself was replaced by LBI-38504). Or maybe it needs to be added to. If it does, send an email to.

If the term or phrase you are searching for could have been abbreviated, or spelled in several different ways, you will need to try all the forms or combinations - I think I caught all of those as I created (and updated) this page but I may have missed some. For example, if you are looking for a MASTR II PLL exciter, try looking for 'PLL' and then do a second search for 'phase locked'. Then a third for 'phase-locked'.

To find a specific LBI just scroll down to it, or search for it: leave off the 'LBI' and the dash and search for the number itself, without the trailing letter revision identifier. If you are looking for LBI-30102M you should search for '30102'. To find a DataFile Folder just type in the number, i.e. For DF-1107 just type in 1107. Again, please search all the way to the end of the list in case of the same data file appearing with different LBI files - the older versus newer revisions situation. Yes, you will also catch any LBIs that have a 1107 in the number, but until this web page is converted into one that is data-base driven that's all we can do.

The above technique works on everything but circuit board numbers and assembly or strip numbers. When you do a board search or a strip number I suggest that you leave off any alpha-numeric prefix and suffix but include the hyphens; you will have a much better chance of finding what you are looking for. In other words, if you are looking for a 19D123456G3 or PL-19D123456G-3 just type in 123456. If you are looking for 19B987654P21 just type in 987654. This is because of the multiple different board variations and how GE listed them.

Some LBI entries list the suffixes individually like '19D123456G1, G2, G3, G4, G9', others use an ampersand like 'G1 & G2', others use 'and' (like in '19D123456G1 and G2'), others use a dash like 'G1-G4', and others mix it up like 'G1 & G3, G5, G6, G9-G17 and G21', So if you are searching for 19D417075G12 you will never find it if the LBI has 19D417075G9-G16 in it. You have to search for 417075 to find it. On strip numbers like a 4ET88A10, 4-ET88A10 or 4ET-88-A10 you should first try searching for 'ET-88' then try it with the leading number (the 4) then with the trailing letter-numeric suffix (the A10). If the radio nameplate says 'KT77C' you will want to search for 'KT-77-C', in other words, WITH hyphens. As said above, this collection was generated by merging the collections of several different folks. Due to this fact the descriptions are inconsistent - some are detailed with board numbers and cross-referenced LBI and Data File numbers, some are very sparse, some were in ALL CAPS (which have finally been fixed), and a good chunk of each collection was blank (the total blank started out at over 70%), requiring opening each and every PDF and hand typing the description into this index page.

Some of the LBIs presented here were produced within GE / Ericsson / Tyco, others were scanned piecemeal by individuals with limited personally owned equipment - on these the foldouts ended up as multiple individual scanned pages. Yet others were scanned with a wide-format scanner which produced the foldout sheets as one wiiiddddeee scan. These last ones are noted as 'Full Page', for example see LBI-3502. We've had a few coments about the full width scans, but we where we had access to the wide scanner we chose to scan the long foldout pages directly into PDF as one file, so that the end user does not have to tape together pieces of a large schematic that were scanned in many narrow segments.

The free Adobe Reader program has a neat feature known as the 'Snapshot Tool' in the Tools menu. The user can select a small portion of a large schematic with this tool, and then print it on standard 8.5 by 11 inch paper. Useful Definitions:. AKA: Also Known As. CCT: Carrier Control Timer, i.e.

PTT time-out timer. When the driver sits on his microphone this timer saves the mobile transmitter from meltdown and also frees up the channel. CG: Channel Guard - GE's version of CTCSS / PL / QT / etc.

CB: Channel Busy - GE's name for a signal that is true when the channel is in use. This is different than RUS as that signal takes into account the position of the CG On / Off switch and the presence of any CG tone.

DOD: Drop Out Delay (the time that the repeater transmitter carrier stays up after the RUS drops out). Some people call it a carrier delay timer, or a hang in timer.

DODT: Drop Out Delay Timer (the actual timer circuitry that implements the DOD). EDACS: Enhanced Digital Access Communications System. EDACS-L: Every Day Another Customer Screams Louder. NLA: No Longer Available. PLL: Phase Locked Loop. PM: Percussive Maintenance (i.e. Forcible application of a blunt object).

PSLM: Priority Search Lock Monitor. RUS: Receiver Un-Squelched - A signal that is true when the receiver is unmuted.

If the receiver is in CG mode then the incoming signal has the correct CG tone. SAS board: System Audio and Squelch board.

SOR: Squelch Operated Relay. TOR: Tone Operated Relay. UHS: Ultra High Sensitivity - an optional receiver preamp. (More to come. Suggestions welcome!) Three final notes: 1) The GE authors had a very bad habit of not stating what product line a module was made for: LBI-38673 is a good example; I had to figure out it was a MASTR III. On the ones where I was able to crack the code you will find the product line mentioned in the description text (for easy searches). Comments and updates from folks more familiar with the equipment are welcome.

2) You will notice that this list contains multiple versions of the same LBI. No, we're not padding the list with more files to make the list look bigger. The reason is that we have found that sometimes the older versions are more complete, and need to be kept available.

We just don't have the time to check line by line, page by page, file by file, as to which version is more useful (which in most cases requires some detailed familiarity with the particular equipment), and as cheap as disk space is today, we just decided to make everything we have available. 3) Speaking of disk space, as said above this one web page alone indexes over 1,700 files that occupy almost 2 GB of server file space. This web site is hosted at a commercial hosting company, and Kevin Custer W3KKC pays for that out of his personal funds for its commercial grade hosting, with commercial grade bandwidth (and as of mid-2010 we're using over 45 GB of bandwidth a month, getting over 650,000 hits and serving up over 175,000 pages). If you find this web page and web site useful please consider a financial donation towards the hosting and bandwidth bill: Credit Cards Pay Pal Please help support this site. The fine print: Note that all of these PDFs are Copyright © General Electric and its successors (such as Ericsson, MA/Com, and currently Harris). The copyrights are still current, and get renewed as needed.

These files have been made available for non-profit individual use. Specifically, and in words of three syllables or less, you may download LBIs for your personal use. You may not download these files and sell them on eBay or anywhere else. And the non-profit individual-use limitation of these LBIs means that they may NOT be used to enhance anybody's eBay auction!

Them's the rules, and if we are to have access to this resource we have to play by them. Mike Morris WA6ILQ alone has over 750 hours of personally donated time over the last several years on this GE data compilation so far, and it's not done yet. He hasn't dared to ask how many hours other folks have put into collecting, scanning and making PDF files for this collection - a lot of it came from paper files and was scanned page by individual page. And at least one of the folks donating paid out of his own pocket to have over 150 LBIs scanned professionally by a graphics shop that had a wide-format scanner (if you see a 'Full width' noted LBI, that's one of them). All in all, it would be a shame to have to take this LBI collection off-line permanently because one or two idiots screwed the deal. Jumps: DataFile Bulletin Files Document Number Size (bytes) Description 3,183,854 IF Alignment - Datafile Bulletin 1000-6.pdf This contains the GE-designed sweep generator circuit that is very, very useful for aligning IF amplifier sections in receivers. This is a simple construction project.

53,011 ER-42 receiver: Audio Howling 124,862 ER-42 receiver: Rumble at low volume setting Datafile Bulletin 1086-03 This file is missing, anyone have a copy?

Older VAF News: Previous News December 18, 201 7. No flying for me Saturday or Sunday due to Wx and a drained battery - EFIS software updates had me leaving the panel on too long for the juice I had - slaps palm on forehead);^). The charger is fixing the problem and the outlook much better;^).

I'd like to brag a second regarding two things, one of which is important and means something, and the other just fun. First, our son Tate got his first raise at his first job (Freddy's Frozen Custard & Steakburgers). An extra.50/hr and he is now a 'trainer' for new employees. He's been there six months, and his grades have gone up during that time to boot. This is important and worthy of recognition.

Take THAT, world! Second, and in the fun category, my 15-0 High School football team in Waco 6A-Division II Championship. That they also beat Danny 'Beautiful Doll' King's Carroll Dragon's two weeks ago is just icing on the cake. They play in AT&T Stadium (Jerryworld) Saturday the 23rd at 7pm. Go Panthers!;^) Hope you had a nice weekend and your week goes smooth. Check out 904EN piloted by Anthony Medina for his first solo.our friend Brian (hydroguy2) '.so, it has been about year since I listed Aurora for sale. It was a sad decision, but the right one.

Kris and I were about to start the battle of her life. Short version: We won.for now.

Longer version: she went through Hel., hung around there for too long but crawled back to the surface. We are forever grateful for all the thoughts,prayers and good wishes.

She suffered some pretty bad radiation burns to the neck and throat, had to stop treatment and in ICU. Feeding tube since she couldn't swallow even water. But at the point of giving up.we didn't. She has had several checks since treatments were done and there is no sign of the tumor and all tests show Cancer Free! Thank you all for being there for her. I also highly recommend the Cancer Treatment Center of America. Let me know if you want more info.

Now onward to the future! I can't afford a flying plane or buy back Aurora.(plus I think the owner is kind of attached to it). We have decided, we have room in our budget to build again. Looking for a dormant project RV-7 would be ideal, but open to other RV's too. I have a '59 C-182 that might be able to work into a deal with someone. I'm in a 50/50 partnership situation, but other owner isn't flying it.

Life is good, go enjoy it. Merry Christmas everybody'.some charts being drawn I've been looking for a guide on visually and functionally distinguishing the different Van's aircraft models, but all I found was the 'Which RV is Right for Me?'

In the absence of a guide, I copied the 3-view diagrams from the Van's site and made a simple set of 'Airfield Identification Guides for Van's Aircraft'.Jereme Carne After working with some PolyGone Gel it was time to seal in the anti rotation bracket and hopefully have these tanks behind me! The PolyGone Gel works really well at removing the gorilla snot. It is way thicker than I thought though, not bad just unexpected.Dvalcik Yesterday a gaggle of 5 RVs headed to breakfast (2 RV7s, RV8, RV9, & RV12). We had some snow in the week that made it a little difficult to get out planes out of the hangers due to the ice since all of the RV hangers but one have full sun during the day. We had about an inch of dusting Friday night with a planned departure of 9 am Sat morning. When I left the house it was 8 degs Flew to Lewiston–Auburn for breakfast and the headed to Fryeburg for a holiday flying. The winter weather finally allowed some of us to meet up at GMU for lunch.

Darwin had a previous engagement, but Owen, Steve and I made it. Q: Does anyone have the dimension from the ground to the underside of the wingtip area of the RV14A. Trying to figure out where to place a few items in my hangar. A: One might expect the lowest point to be the red arrow which measures 36”, but the actual lowest point is the blue arrow at 34.5”, and is no lower than the wing at that point.JTurner.Mike Brown RV-4 Very tight fit, but all is good so far. Lots of attaching and in attaching again to paint.17th December 15, 201 7.

Wednesday evening during the annual property owners meeting at my home field (52F), the property owners voted to restore the name of our airport back to its original ' Aero Valley'. A 'sea change' event reflecting a new era of awesomeness. It will take a bit of time to file the paperwork, and the freq. Might change, but we're all pretty stoked with the new vibe. You can view a PDF version of all (42) slides shown during the meeting. Wishing you and yours a happy, safe and RV-filled weekend.

RV-6 Getting Some Motor Mount Love at Aero Valley Aviation.Monk's place Cracked motor mount requiring some welding. Click to enlarge.please review Only odd spec is the mounting requirement, a 0.125'x16x16 aluminum plate for the full 200 amp rating. Surely the heat sink is needed only for continuous use at high amps? The heat sink size is the same for all three from 100A through 200A so I would think there is some wiggle room. If I decided to go with an SSC I only have room to mount on a.125 sink slightly larger than the contactor. I'm thinking with typical buss amps there should not be heat issues.

Excellent points! I have revised my diagram to reflect your inputs. Thank you.Stan Bahrns RV-7A Evidently when I last installed the radio I didn't didn't get the lug on the screw that draws the radio into its mount in the right slot & even though it was tight it didn't draw the radio in far enough.So it evidently made good contact with the pins ok for about 125 hrs & then started losing connection intermittently & finally not at all. Was an easy fix once I figured it out. Probably would have saved a lot of work if I would have just pushed in on the radio in by hand. Stan Bahrns RV-7A QB N868B 365 hrs RV12 40 hrs Effingham,(southern) ILL.kaber56 Q: I apologize if this thread is redundant but does anyone know of an easy software program that can be used draw up my electrical system? A: Visio has an electrical system component in its built in templates.

A: I used MS Visio for my RV-8 (painful). I'm currently using for my Bearhawk.

A: I used Visio to draw my schematic (24 B-sized pages and counting). However, I was to do it again, I'd use a bona-fide schematic capture program.

There are some great programs out there (Altium, Eagle, OrCad, Pads), which I used at work in the past, but no longer have available, and I didn't want to spring for the three or four figure price tags. There are some good free ones, though: KiCad, TinyCAD, EasyEDA, and others. Advantages: - Does a great job keeping track of all the wiring, including maintaining netlists between all components. Easy search of connections by user net name - Forces you to include all connectors and other misc components - Generates a bill of materials (often directly exportable to Mouser, Digikey, etc) - You can build virtual cable bundles by combining individual wires into busses, helping fuselage wiring layout. Disadvantages: - Have to learn a new SW tool, and these tools are not easily 'self discoverable' - Have to make individual 'components' for all the non-generic stuff like avionics, special relays, fuse holders, etc. This is a big job if you're going glass.

Are constrained to their grid system and schematic presentation styles (ie, your schematic may look a bit uglier and be more confusing that you'd like) In the end, though, the benefits outweigh the initial investment to set up the components in the system. It make tweaking and schematic management much easier in the end.

A: ExpressSCH is stone simple. Example schematics here Whatever you choose, congratulations. A thoroughly documented electrical system will significantly add value to your aircraft. A: The electrical diagrams in this thread were done in Power Point The files are available for download (links in the thread somewhere) if they provide any help.JTurner RV-7 December 14, 201 7. Please excuse the early push of the Thursday edition (4pm Wed).

The yearly property owners meeting for my home field is this evening and I'm on the board. Gotta get cleaned up;^). Looking for opinions on my electrically dependent main power distribution concept. RV8, VFR mission, single alternator, aft mounted batteries, dual-boost pumps, ignitions, and ECU's.

Battery 2 functions as a brown out battery and additional endurance. No interest in an E bus simply turn off one or both batteries and land.

No interest in using battery 2 for engine start.Dave Romuald RV-8 I thought I would share this discovery since I appreciate other posts when members share important issues. I was performing my annual condition inspection with my local A&P.

I decided to pull the interior side panels of my RV-8 to inspect the flap linkage. I had recently made the mistake of taking off with full flaps and although I was confident I didn't overspeed the flaps I thought it would be worth a look. To my surprise I found that the nut on the bolt which connects the flap motor to the linkage almost completely backed off. Although it has a nylon insert this nut could be turned with my fingers. I have owned the a/c for five years (not the builder) and regret that this was never checked on my previous condition inspections. I can't vouch for whether or not the nut was installed properly but I do see some evidence that a wrench was used on the nut prior to this photo. Although I have no idea as to why this nut came loose I thought it would be something of interest to this forum.Pete Howell 3rd Year Performance #s (2009) I just signed off the 3rd annual condition inspection on the -9A, and I thought I would re-run some cruise performance #'s to see if she has lost anything.

Plus, a meeting was cancelled, and the weather was perfect! I preflighted, took off, ran on up to 8500ft, and set up for cruise. I locked on the Trutrak and took some 4 way data on the cardinal headings.

22.2' MP, 2270 RPM, LOP 6.0-6.1 GPH, carb heat about 1/4 on. Here is the data.VAF advertiser.David Nelson (Taylor, TX) Discovered the other day that one of my Quiet Technologies headsets and my Bison RV Flight Bag had been stolen from my plane while locked away in my hangar at T74. After bringing it to the airport managers attention, it was discovered that other hangars were recently broken into and their headsets stolen, too. Tools, avionics, etc weren't touched. Contact officer A.Clifford @ Taylor PD (512) 352-5551 if you have any information or discover items have stolen from your hangar.JR Davis RV-8 December 13, 201 7.

Proof of Fun: RV Curves.it never ceases to amaze. Gas run up to GLE, rendezvousing with Smokey on the way.

3-ship of usual suspects turned into 4-ship as planned at the time we were shooting for (amazing). I mean it's just a gas run, but the discipline and skill sets are something you start to take for granted, and occasionally when looking at the ground tracks later you're brought back to the stunning realization of just how beautiful the geometry can be.and what satisfaction this RV hobby can provide when you practice.and captioned. Garmin Pilot screen grabs. Approximately one year ago, N104ST made its first flight powered by a prototype CD-230. Today, it passed the 100 hour mark. Fuel bill for the first 100 hours-$2084.27-713.2 gallons - Price range $2.50 to $3.57 -There are still 33 gallons in the tanks!- Condition Inspection time is here, so the fun will come to a temporary halt. Known items to be worked on: 1- enlarge oil cooler inlet duct- oil temps are acceptable but need to be better.

2- CHTs - there is TOO much cooling air. 3- start working on empty weight reduction I’ll be sure to post any findings from the inspection when its finished. Scott Flandermeyer Rv-10 TDI #40816 Fayettevile, GA Our recent trip to Tuscon to see the Titan II missile museum. Today I got the left gear leg and the upper and lower intersection fairings in place and drilled and cleckoed together. The lower intersection fairing took quite a bit of heat from a heat gun then I held it in place with a shop towel while it cooled. I trimmed the aft edge a few times and continued the heat gun process about 3-4 more times until it finally laid down where and how I wanted it.Bob Collins RV-12 And we're back. Tonite's question involves the RV-12iS, Section 21 page three instructions for riveting the three ribs and baggage floor to the center.

Specifically, this line of rivets - AN470-4-9's - 12 of which are need on each floor to the center section. Reason number 148 for why you should practice learning how to use a tool (in this case a nutplate jig) on scrap rather than the workpiece: Sometimes I make a mistake and say, 'Well that happens-lots of builders learn this one the hard way'. Other times I have to say, 'Wow there really isn't any excuse for this. Use your head, dummy!'

This is one of those times. If you're a new builder, heed the advice constantly given here on VAF to practice on scrap first!

December 12, 201 7. Monday morning at 52F was an RV beehive. I showed up with the goal of adding a quart of oil, some air in the tubes and a quick ILS over at KAFW before getting on the keyboard. Ended up also going over to DTO for their ILS 18 practice. What I observed instead was the whole RV spectrum: 1. Rob working on his -8. Monk working on three different RVs 3.

Kay getting ready to go practice acro in his 8A. Three of the other usual suspects briefing for a formation hop.planes on the ramp waiting. When I came back into the pattern Kay was on short final, the formation gaggle was joining up and cruising out to the NW and I had a text on my phone from Alex D. Saying he saw me go missed over at KAFW (he was standing on the ramp between three F-18s and two T-38s). Oh, and Smokey Ray later texted he wants to join up Tues at an appointed time in the air for a formation fuel run.

If you're still building.it's worth it, IMHO. And good morning. Doogie's tracks from Mon morn. Click to enlarge. Garmin Pilot screen grabs.

457PapaMike waiting on ride to Hanger U for a set of wings after 5 years Hey, I've just unpacked the aileron hinges and prepped them for assembly. While I was at it I grabbed the SB 16-03-28 kit and prepped the angles. However, when I fitted the parts to the rear spar it was immediately obvious that I was going to have a problem. Fitting the angles in the SB 16-03-28 kit will prevent me from being able to rivet the two skin to spar holes on the bottom skins in that area because a bucking bar won't fit. In fact, I don't think a blind rivet will fit either! Has anyone else fitted their SB kit on a slow build new wing yet? Is there any advice from Van's on this I've missed?

On Page 29-4 for RV10 getting ready to roll my side skins. Step 2 gives me dimensions for making F-1070a&b Roll Construction Angles, but can't see which stock I'm suppose to use. Do I make this out of AA6-063x3/4x3/4 (1/16') stock or the AA6125x3/4x3/4 (1/8') stock? Puzzled why the inboard lip of the air cleaner retaining frame keeps getting bent upwards. When I straighten it, after the next flight, it's bent upwards again about 3/16 to 1/4 in at the fwd inboard corner. It happens whether the rubber seal is short or long. Could the airflow over the bracket create a low pressure region which causes this?his recent art project.in charcoal.

Some video game thing. Better than I could ever do.that's for dang sure.

Dr December 11, 201 7. 4,455.Dustyone.ChiefPilot.Chris Pratt.Scott Hersha It looks like it works! The stick is offset 2 inches and the offset clears the front edge of the seat pan. Some of the top of the stick will be removed when I install my infinity grip, but there’s still plenty of room for it to clear the bottom of the IP and in the full forward position it doesn’t reach the gear tower cross brace. Cut angle is 65 degrees - 2 cuts 2.3 inches apart. That cut off piece makes the offset piece - rotated making the upper and lower parts parallel.

Working Them Angels.overtime A showing an almost Piper crash at my home field Friday. Around 10 seconds in you hear the engine sputter after takeoff. At 20 seconds you see the shadow pass down RWY 17. Then for the next several seconds you hear the engine cut in and out as the pilot tried the classic 'impossible turn' (much to the displeasure of a few watching).

Around 1min 10sec you see the plane approaching from the SE, bank nearly 45. and land at most likely over 100kts. If the engine hadn't surged there at the last second it probably would have cartwheeled. IMHO, this pilot is lucky to be alive. Two big flat fields were overflown.olyolson RV-4.JTurner.jcarne.Steve Melton 3d printing.Don Patrick December 8, 201 7. A cold front pushed through N.

TX on Thursday and the temps are a dropping - dipping into the 20s shortly. I took the RV-6 up for 20 minutes Thursday morning between phone calls and emails to see how the front passage affected viz. Humidity 31%. Winds 20kts at 350.down the centerline.

From 2,000’AGL at the northern tip of Lake Lewisville I could CLEARLY see the landing lights on jets in the flare, landing, and rolling out on RWY 36L at KDFW (25) statute miles away (measured later using GoogleMaps). The red lights along the north end of the runway were also extremely easy to seeand crisp. What a nice visual treat.something rare for N. I paid for the view as I was cold the rest of the morning. Red Wing boots and Dickies jacket barely made a dent. It was still worth it though.;^) Hope it’s not too cold where you are and wishing you and yours a happy, safe and RV-filled weekend.R.E. Butcher post December 1, 2017 Central High School (WI) Eagle's Nest Projects (Team Senft) Anthony Medina - 1st Supervised Solo (Executed flawlessly) Team 'Senft' at Central High School (WI) is turning out private pilots at a record pace.

Central's team of student-builders, mentors, and community supporters are near completion of their 2nd Eagle's Nest Projects RV-12 build and continue to expand their flight training program for the student-builders. Please welcome Anthony to the VAF community and don't be bashful to share any words of wisdom or encouragement. Congratulations Anthony!!! We're all VERY proud of your accomplishment.JTurner RV-7 Didn't get much done today but I think I have my head wrapped around the process. I didn't read the instructions all of the way through for the gear leg fairing and this caused a little extra work on my part to get a straight gear leg fairing.Chjris Mitchell RV-4 project Q: I am trying to install the various control linkages from the sticks back to the elevator. There seems to be a shortage of information on the plans, though I might well be missing something.

Not helped by these odd washer sizes that are called out in various places. So, F-635 on drawing 38. The center bearing has two AN960-416 washers and two 5702-95-30 washers. Nice clear diagram and I understand that the 5702 95 30 washers capture the bearing if it fails.

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These funny washers are 0.25id and.75 od. Where F-441, the big pushrod, is attached to the elevator horns, there is an AN3 bolt and an AN365-1032 nut, plus enough washers between the elevator horns to fill the gap. Drawing 28, F399 and F-440, are connected to the front stick base, the rear stick base and back to the bottom of the bell crank. Two of those locations (F-440 to back of rear stick and F-440 to bottom of bellcrank.) indicate to use the little 5702-75-60 spacers/washers.

Should I use the same little washers on the other two locations (front stick to F-439 and F-439 to rear stick)? That would use up all 8 of the supplied 5702-75-60. What about he top of the bell crank to the F441 big push rod? Can't find the details for that at all. Finally, two possibly dopey questions: Why do we not use the larger washers in all these locations as there are still rod end bearings that could, presumably, fail?

Why do we use nyloc nuts in these locations rather than AN - (non-A) bolts, castle nuts/split pins? As ever, many thanks. A: (Scott Hersha) Here's the way I like to think of it - If I was a bearing in a rod end, and if I became separated from the rod end (either by failed bearing race or some defect), then what would happen next.

If the answer is that the rod end and whatever it is connected to could fall outside of the safe operating area where it is supposed to be in - it could then jam the control - well then you have to have something to prevent that from happening. On your large elevator pushrod that is captured in the elevator bellcrank, you don't need a large diameter washer because if the rod end bearing fails it is held in the same relative position because it can't get outside the jaws of that bellcrank - as long as the bolt doesn't break. On your aileron inboard bracket where it connects to your aileron push pull tube rod end, you will need to have the large diameter washer on the bearing side of the approximately 1/2' spacer that's there.

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Even though the whole collection of spacers, and washers is inside of the aileron bracket, a failure of that rod end could allow the now liberated bearing to slide laterally a half inch or more, which would possibly jam the control tube in the aft spar opening. That large diameter washer prevents that from happening. As far as those very small (and difficult to install) 5702-75-60 washers - I think the only place I've seen those used is in place where a normal size washer would contact and drag on the part that the ball is pressed in to - like the outboard aileron bracket on some models, or on a rod bearing where the rod pivots a lot.

That small diameter washer gives a space between the ball and the normal washer or surface, so it can move freely without interference. A: (Gil) There is another interesting twist here for owners of very early -4 and -6 kits.

Vans changed the vendor for the rod ends, and if you have the Heim rod ends that were supplied in the very early kits they had a different profile at the end of the ball portion. I looks sort of like the tiny Vans washer was actually built into the design. I believe this explains why some early kits did not need the tiny washers while later kits did. Nevertheless, the aileron pushrods should not bind in any position of the stick. If they do, add the tiny washers. These two pictures show the difference: From the Mothership.

December 7, 201 7. Pearl Harbor: 76 year anniversary. Fmi: RV Alumitherapy: 12/6/17 The Wx around DFW is going to be cold and windy today, so yesterday many of us got in our every-few-days RV quicky. Below are (4) pics and (1) video I took to sum up the flight.

What started as a 'I really don't know where to go' flight turned into much more.and a movie reference. Visiting Monk's before the flight my attention was drawn to some nice spark plug wiring and oil cooler duct recently installed on a -4. Neat wire standoffs. Over to Frisco and the morning traffic jam on southbound 75. Nice to be above it and not in it. Back over to Lake Lewisville and a radio call to see if Rob 'Smokey' Ray was RVating in the RV-X on his day off.

I got a short clip of his takeoff before he joined up on my wing for some form work. Scorch was monitoring 122.75 and ask for some wing work also. VERY still, cold air made for fun practice. Random iPhone taken w/o looking cropped the following. Some 360's on the left and right, some echelon, two pitch outs/rejoins. Back on deck at the U.S.S. Aero Valley (52F) later Smokey showed up with a rug he didn't want anymore.

' Anyone want it?' This rug really ties the room together, does it not? Thanks Smokey!Matt K. RV-7 Noticed a couple drops of oil underneath the throttle cable where it meets the throttle lever in the cabin.

In my RV-8, I have the side panel throttle quadrant mod, but for purposes of this discussion should be considered identical to a stock build. The other end is connected to a Lyc IO360M1B. The end of the cable is in the vicinity of the low pressure oil return lines, so I decowled to investigate.

There was a touch of moistness in that area but nothing more than usual, and certainly nothing obvious that caught my eye. I tightened the hose clamps and buttoned everything up. Any thoughts? Am I missing something? I checked the other two cables - prop and mixture - and they are completely dry (none of them are in the vicinity of any moistness anyway). Finally, do any of you replace those short runs of hose from the aluminum return lines to the case?

Here are some pix: December 6, 201 7. Useless trivia: In 1996 I started the North Texas Wing of Van's Air Force online. Over the last 21 years it morphed into what you're reading today. Thanks for spending time here (when you should probably be working).;^).Denny RV-12 (wing kit) The harvest is wrapped up.

Not just for the year but for a career. It has been quite a run but for everything there is a time. I started the 12 project three years ago and with a lot of seasonal interruptions I ordered the avionics kit today.

Building has been a lurking dream for a long time. To give you a clue, there is a Dyke Delta manual in my library archives. As I always tell my wife, 'it doesn't cost anything to dream'.

Well that line has run into some serious headwinds so now it has morphed into 'it cost a fraction of a combine'. It seems to be working and she is thrilled to see me head to the shop for the day rather than pace around the house foraging for hidden holiday snacks. So come summer of 2018 I hope to transition from the Warrior to the 12. Guys I suspect we are overcooling our RV-8 engine and suffering with excess cooling drag in the process. We built and installed a nearly leak free plenum. The James Cowling exit area appears to be huge in comparison to the inlet area. The 2 round inlets total 33.6 square inches and the exit measures 84.2 square inches.

We plan to reduce the exit area during the condition inspection in January, but the question is how much? Is there an inlet/exit area ratio that we can use as a starting point? I did a test flight to collect a little data as follows: RV-8 CHT and Oil Temp Test Climbed out at 100-110 mph WOT to 8000' DA, Surface OAT 23c.

Full fuel with 1 pilot at 170 lbs.