RV Builder's Hotline
About the Hotline September 13, 2008 Subscribe free
Hot threads online
  • Does everyone hate fiberglass?
    Yes (VAF)
  • Drilling out rivets
    Everybody's got a system. (Rivetbangers)
  • Oxygen system maintenance
    Gary Sobek's tips on maintaining an oxygen system after 10 years of doing so (SoCal YGroup by way of VAF)
  • Fuel tank vent lines
    Concerned about an 'instant inflate' phenomenon when testing? (Rivetbangers)
  • Ammeter shunt
    I admit all this electrical talk is still gobbledygook to me, but even I can tell this is a valuable thread.(VAF)
  • Engine shopping
    Lots of choices, obviously, but reading this reminds that people who don't know engines -- bowing -- probably should be looking for a safer route than some of the recommendations. But that's just me. (VAF)
  • Filler primer for fiberglass
    Bottom line: Forget about a rattle can primer. (VAF)
  • Tandem vs. side-by-side comparison
    There's no one answer here, of course. Everybody has a different reason for building the model RV they want.(VAF)
  • RE: Kitplanes article on LED driver
    unless the appliance of interest is composed only of relays and resistors, it has a strong probability of generating some level of noise. The questions are always how much noise and at what frequencies? (AeroElectric)
  • Weld-On RV-10 and crazing
    Just finished installing my windshield with Weld-on 10 C and there is crazing where some clamps were on the sides (RV-10 List))
  • Dynon E-10A questions
    Several builders weight in. (RV List)
  • Avionics back-up power
    How should I wire power, both from Main Battery and Back-Up Battery, to the COMM Radio and the Transponder? (AeroElectric)
  • GPS antenna mounting
    I am to the point of needing to mount or at least drill the holes for the 430W GPS antenna. I want to put it on top of the cabin but it looks like I have 2 options. (RV-10 List)

    NEW VIDEOS

    Kevin Horton's first flight
    Always exciting to see someone whose Web page you've followed make that first leap. (Watch)

    RV-8 at dawn

    RV-8 at dawn
    Early morning at 6Y9, Labor Day weekend 2008. (Watch)

    Johnson Creek takeoff

    Johnson Creek, Idaho
    Hold on as an RV-6 departs the back country. (Watch)


    SERVICE BULLETINS

    E-MAG/P-MAG
    Beginning in August 2007, the mount for the engine position sensor magnet was revised to a system where the magnet is mounted in a brass holder which is then double set screwed to the ignition shaft. While initial performance was satisfactory, a pattern has recently emerged where, after a period of operation sensor mounts have worked loose in a few units, resulting in a loss of proper ignition timing (More)...

    FEATURED STORY
    Pair survive UK RV crash

    There was unusually intense media coverage of a UK RV crash the other day in which RV builder Bill Knotts, and a friend, crawled away from the wreckage. Perhaps it's because the BBC, which had produced a segment on the 10-year construction project, was all over the crash, which occurred as Bill was on his way home from an aviation conference. Journal Live detailed the rescue efforts. Knott, 73, suffered some back injuries, his passenger was treated and released. Curious terms you UK folks have. One UK newspaper called Knott a "pensioner." I guess that's fancy talk for old geezer.
    Related links:
    Kitplanes: Homebuilt Aircraft Safety 1998-2008 ($$)

    Giving Dave a ride
    Giving Dave a rideWell after a year of playing calendar bingo I was finally able to give a friend from church a ride in the RV-4 today. It took quite a lot of negotiating but we finally did it. I met up with Dave today at Caleveras Airport. He snapped a few pictures of the plane. Quite a few in fact. I patiently waited through all this as the air got hotter and thinner because Dave is a good guy and he’d probably walk through (okay, maybe very near) fire for me. Dave is a fire captain by day and night and on days off he poses as a humble photographer. (More on Rivetbangers)

    Transition training in Oregon
    Transition trainingWhen I started my RV6 I had 1,000 hours of flying time in my logbook, IFR, MEI ratings, and checked out in 10 different types of aircraft. I thought no problem; I can fly my RV6 when I get it done. Twelve years later and my plane is near completion, after a couple of high speed taxi’s I came to the realization that I would have to hire someone to fly it for me, or I needed to get some transition training. After some E-mails and phone calls I realized it was going to be difficult to locate someone willing, or able to give me the training I needed in a RV6. (More in the September issue of the Minnesota wing of Van's Air Force Newsletter on Rivetbangers)

    From the archives:
    Transition training in your RV

    Day-tripping
    Trip to Gateway

    Trip  to GatewaySay, is that a nose gear RV in the rugged backcountry? Shouldn't that be on its back -- the alleged native environment for a nose gear in this situation? Nope. Bob Trumpfheller puts some larger tires on his bird before his trip to Gateway, Colorado. (Read more)

    Other day-tripping:
    Bob and Ginger's Trip Out West blog


    Inside a Van's gauge
    Trip  to GatewayFor whatever reason, maybe that they're affordable, Van's instrument gauges don't generally get high marks. But AeroElectric Connection's Bob Nuckolls recently took one apart and found there's more value there than you might think. (More)

    RV-12 progress
    RV-12Mauna Kea is one of two huge volcanoes that form the island of Hawaii. Most people who have seen it have only seen the top 13,000’ or so, even though from base to top it is over 33,000’ feet high. It’s just that the bottom 20,000’ are under the surface of the ocean. Even though that huge underwater base is invisible to anyone who doesn’t have a personal submersible, it’s still there, holding everything on top of it up. The RV-12 is a little like that. (More in 4th issue of RVator)

    RV-12 Builder Sites:
    Marty's RV-12 site
    Jerry Greenberg
    Tom Benton (5 RV builds!)
    Jeffrey Emmick
    Alan Gilmore

    MERFI's Law
    Vintage aircraft at MERFIYeah, the pancakes were great, but I can get those at Bob Evans. No, the real reason you fly in to the MERFI Fly-In is to walk around and see what other people flew in to the Fly-In. That, and see what hides behind the normally closed hangar doors. (More on PapaGolf Chronicles)

    EDITOR'S NOTE

    My apologies for the disruption in producing the RV Builder's Hotline over the last three weeks or so. I had to go to Denver to cover the Democratic National Convention and then back to St. Paul for a week with the Republicans. (You can find about 60 posts on the two on my day job blog.) It doesn't look as though I missed too much as it's been relatively quiet after Oshkosh.

    I've been troubleshooting some delivery problems with the Hotline and most of them are being caused by (a) a mailing program on my server that isn't working and (b) the sp*m detectors on various ISPs. Because over 1,800 Hotline e-mails are sent out, some ISPs have identified this as sp*m.

    There isn't a great deal I can do about this other than to call your attention to this page, which tells you how to check your e-mail program to be sure it's configured properly. Some of the filtering is occurring at the ISP level, in which case there's very little I can do.

    In the meantime, I continue to distribute the Hotline via an old e-mail distribution program which seems to be generally reliable, and, of course, it's available on the Web site.

    For the next and subsequent issue, I'm always looking for great photographs. If you have one you really love, please send it along.

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  • CALENDAR

    OR: Eugene. September 19-20. Fiberglass Done Right seminar.(More)

    FunPlacesToFly.Com


    ACCIDENT REPORTS

    MA: Beverly. An RV-9 damaged landing gear on landing. 8/21/08 (Data)

    PA: Toughkenamon. RV-6A skidded off runway. 9/2/08 (Data)

    Probable cause

    MI: Manchester. Probable cause in 8/1/08 landing accident of RV-7A. Improper flare. (More)

    WI: Oshkosh. Probable cause in RV-3 landing incident on 7/28/08. Improper compensation for crosswind. (More)

    IL: Jerseyville. Probable cause released in 7/8/08 RV-6A nose-over. Muddy field. (More)

    OR: Aurora. Probable cause released in 3/27/06 RV-6 incident during landing. Malfunctioning prop. (More)

    MI: Barton City. Probable cause released in 9/20/07 RV-9A accident on takeoff. Gusty winds. Failure to maintain airspeed. (More)

    WA: Stanwood. Probable cause released in 2/16/08 incident in which two people died. Failure to maintain airspeed during emergency landing. (More)

    NJ: Princeton. Probable cause released in 2/28/08 RV-9A accident on takeoff. Improper installation of ignition/fuel control system. (More)

    AZ: Winslow. Probable cause released in 3/18/08 RV-7A incident. Failure to maintain airspeed. (More)


    OTHER NEWS

    The RV-12 view
    Kitplanes Magazine has taken the RV-12 out for a workout and issued its review. "Control forces throughout the landing pattern are, well, by now you know— low. Minor gust upsets that raise a wing can be fixed in short order with intuitive stick and pedal corrections. Tracking the runway centerline on final, through the fl are and during roll-out comes automatically
    .

    Van on the 51% rule
    There is nothing inherently illegal about performing commercial assistance to a homebuilder, or even completely building the aircraft for the owner. However, it can become fraudulent and illegal if a person attests to the FAA that he built an airplane, when in fact someone else commercially built it for him. (More)

    When progress is hard to see
    When you're building an airplane, you go through many phases. There is a phase where motivation comes easy. When you're building a wing, or a flap, or a fuselage, you see fairly steady progress. At the end of your workday you close the garage or hangar door and look at your work and say, "gee, that's looking like an airplane, it won't be long before it's flying." (Letters from Flyover Country)

    Time flies for airmen
    Non-RV, just a nice piece. Watch the slideshow. (Cape Cod Times)

    Tom and Kate Velvick OSH write-up
    Most EAA chapters are carrying similar articles this month, but this is one of the better ones. (Chapter 538)

     

    BUILDER TIPS

    Dummy wing spar bolts
    Wing spar bolt
    When it came time to join the forward and aft sections of the fuselage together at the wing spars with the spacers and bolts, I was a little out of luck because the wing spar bolts come with the wing kit. I reckoned that this connection was temporary for the purpose of drilling the skins and related parts so dummy bolts should suffice.The problem is that the burnished holes in the spars are an exotic size that is not easily matched at a hardware store. Conventional sizes are either too large or too small. However, since I excel at anything "dummy", this is the solution that I came up with that actually worked quite well. I found that generic automotive rubber fuel line fits perfectly inside the smaller holes of the spars. I coupled that with 1/8th inch toggle bolts run through the tubing, fender washers, and wing nuts. This dummy set up mated everything together perfectly, and as a bonus, the rubber left the inside burnished surfaced unmolested and at final assembly my "real" bolts and nuts will be virgin and unstressed.The total cost was less than $5.00 (Myron Nelson on VAF)

    Easy way to bleed brakes
    Bleeding brakes Yesterday I had to bleed the brakes on my Skipper... they are standard 6" Cleveland brakes that are (I think) very similar to RV brakes. The setup is plumbed identically, with a single reservoir feeding the copilot master cylinders and then the pilot master cylinders. My A&P gave me this tip: go to your local aviation / farm supply store and buy three things: An old fashioned pump oiler - big with a heavy base that won't tip over; Some clear tubing that tightly fits both the end of the bleeder screw and the pump oiler; The biggest horse syringe they have (no needle); Total cost was under $25. (More on VAF)

    Manual aileron trim knob
    I decided I didn't like the lever Van's supplied, so today I tried to buy some AL bar stock. I went to a old time machine shop we use for work and ask if he had any for sale or rummage his scrap bins. He said we have no scrap pile, it's all good stuff. I thought "great what's this going to cost?" He was scribbling notes while I described what I needed. Then he said what's it for? Ok, I'm building a airplane, an RV-7. He looked up from his notepad and leaned on the counter and I thought he was going to cry when he said, I've always wanted to build an RV-8. "come on back let's get you some stuff." I spent 30 minutes talking while he loaded me up with various AL sizes. I kept saying that's enough(I only needed a $5 chunk of scrap). Back at the counter, His wife ask about making out an invoice. He said "it's taken care off, he owes me a ride". She said "For all that?" rolled her eyes and walked away. I tried to pay him, but no go...Ride it is! here is my first attempt at a new trim knob for between the seats.(More on Rivetbangers)

    How to make a VFR cross country trip tick
    Trip TickI have never been a huge fan of Sectional Charts. I love the info they provide, but the user interface is terrible for a small cockpit. I fly GPS, and while I love the technology, I never completely trust it. I like to have my finger on a map, but I don’t like to have to fold, unfold and refold charts while flying, or snacking, or whatever at 9500 feet. I think I may have found a better solution and it is available to anyone that has a computer, the internet, and a color printer. Caveat here – I ALWAYS have current charts within reach in the cockpit. What I am going to show you how to make is for reference only!!! (Pete Howell in the September issue of RVator.)

    PICTURE OF THE WEEK

     

    Bob Trumpfheller
    posted this image on his Web site (see above). This is the departure end of the runway at Gateway, Colorado. Straight-out departures not recommended.

    The RV Builder's Newsletter is published every other Saturday morning -- more often as time allows -- and is distributed to those interested in building and flying the RV aircraft featured by Van's Aircraft Inc. There is no cost to subscribe and the newsletter is delivered by e-mail in html format. ©2008 Bob Collins. This newsletter is not endorsed by, approved by, or affiliated with Van's Aircraft Inc. The Hotline is produced by Bob Collins, 2734 McKinley Dr., Woodbury, Minnesota 55125-3487. You may unsubscribe at any time by selecting the link above.
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