RV Builder's Hotline
About the Hotline July 19, 2008 Subscribe free
Hot threads online
  • Cold weather operation for glass panel
    A builder in Alaska thinks ahead. (VAF)
  • Newbie alert: Scratches
    Short and good thread to put your minds at ease. (VAF)
  • Nose gear movement at engine mount socket
    Van's says the mount socket contains a bushing that can be removed and a new bushing installed . (VAF)
  • Tip-up canopy release: yes or no?
    It depends on your radio stack intentions (Rivetbangers)
  • Autopilots
    Short thread on pros and cons (Bob's favorite people: The Trio guys) (RV-6 List)
  • What now?
    What do you do after your build an RV? (VAF)
  • Dimpling vs. countersinking side skins
    On the RV-10 (VAF)

  • Night VFR and fuse accessibility
    What fuses/breakers control a circuit that is critical to night flight? (AeroElectric)
  • Dueling engineers
    No RV material here. I just enjoy it when Bob Nuckols goes off on someone. (AeroElectric)

    DONATIONS

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    OTHER NEWS

    FAA releases 51% rule change
    The FAA issued the new draft amateur-built certification policy today (July 15, 2008) with a 30-day comment period.
    Related link:
    VAF thread (Busy!)

    VAF chat
    Doug Reeves comes up with another way for you to be less productive at work. Is a 24-hour live cable channel next? (VAF)

    Called the FBI
    One RVer doesn't take threats lightly. (VAF)

    Oshkosh arrival
    Let's stay alive this year (AvWeb)
    Related:
    Practicing for Oshkosh (VAF)

    What effect does alcohol have on airplanes?
    A Shell engineer provides some facts. (EAA Chapter 10 - Tulsa)

    My trip to Sun 'n Fun
    Kevin Quirk (RV-6) pens a really interesting article for his EAA chapter. (EAA 124 - Opens with Word)

    Issues with large commercial carriers trouble small town airports
    From earlier this month on the PBS Newshour.

    Duluth air show draws foes, fans
    Sadly, this one was produced by people in my newsroom. (MPR)

    RV SAFETY

    Object removed in NJ crash Despite recent crashes, homebuilt plane pilots remain enthusiastic

    RVers, and homebuilders in general, are crashing their airplanes at a record rate. That's not surprising given the number that are being built. But the perception of homebuilding among the general public may be declining. The Philadelphia Inquirer this week took a look at homebuilding. Fortunately, they did so from the pilots' perspective

    But one person who commented on the article had a good point for all of us. "If pilots continue to fly with air instead of fuel in the tanks, continue into bad weather conditions for which they are not trained and get low and slow to close to the earth where a spin/stall can not be recovered from then accidents will still occur." If it's that simple to prevent them, then why don't we? (See Article)

    One interesting aspect of two recent RV crashes. What you post on Van's Air Force, and other Internet bulletin boards, can come back to be your final words, and your side of the story. (See article)

    For more information:
    RVator: Van on "how to live when your engine dies (See 2006 Issue 2 pg. 8)
    Richard Jahns remembered
    NTSB issues report on TX plane crash (Abilene Reporter News)

    Updated news links:
    New theory in MacKinnon crash (Barrie examiner)

    RVer's grandfather, father-in-law also died in plane crashes (RGJ.com)

    Birthday present has 86 year old flying high
    Going for a rideYou think your RV is only about you? Check again. Just ask 86 year old John Vogl, who hadn't flown in years until Matthew and Sandi Brandes stepped in. It's a a great story and a perfect example of how little it takes to get some good publicity for aviation. (KansasCity.com)
    Related link:
    The Brandes' Web site

    The Furey fly-in
    Furey fly-inLast Saturday, RVer John Furey hosted a fly-in of Ohio Valley RVators at his airport. Hotline reader Tom Webster reports that, "Most everyone had arrived by noon. About 15 RVs. After a great lunch, it was observed the weather wasn't going to be CAVU all afternoon as forecast. Some RVs left right after lunch and all the other RVs were gone when I took off around 3 P.M. While at the UFO, some of us firmed up our plans for the upcoming OSH show. Great UFO and great friends." By the way, look at all those tri-gears landing on turf!
    Related link:
    See Ted Chang's pictures from the fly-out
    Rick Gray's pictures

    Arlington fly-in
    One Arlington fly-in down, a little less than a year to the next one. The NW EAA has already replaced its 2008 fly-in Web page with the 2009 one. If there's an improvement to be made, it would be that organizations would pay more attention to properly archiving their fly-in pages. They should be more than brochureware. But I digress. Here's a slew of links for recaps of the Arlington EAA fly-in.
    Arlington fly-in attracts pilots and fans of aviation (HeraldNet)
    Thread: Brian Carroll's review (VAF)
    Pictures from an unknown source 'Naug' (PicasWeb)
    Greenland ultra-light fly-in (EAA 740)

    The pre-made fairing
    One-piece fairingNow here's a timely product that Robert Cullinan wrote to tell me about this week. I'm working on my fiberglass tips this week, trying to build up the confidence to attack the fiberglass fairing on my RV-7A project. But Robert's company is marketing this product. And, no, he's not paying for this mention. Unfortunately -- for me -- this product is for sliders and I'm building a tip-up.

    It's made from 8.8 ounce cloth and Aeropoxy and sells for about $500 and fits the 6, 7, and 9 models. He expects it will save builders 10-30 hours of time. (Check out the Web site)
    Related Links:
    AL windscreen thread starting (rivetbangers)
    Fairings page (Randy Lervold's RV-8 site)


    WANTED FOR A FUTURE ISSUE

    We all know the usual hard parts of building an RV airplane -- fuel tanks and canopies, mostly. But what part of building an RV surprised you most of all when it came to the degree of difficulty? And how did you overcome it? For a future RV Builder's Hotline story, please share your experience.

    ALL THINGS RV
    Is your site listed?
    RVator index (updated)

    LETTERS FROM FLYOVER COUNTRY
    Why I'm not going to Oshkosh this year
    It's nothing against the EAA event at all. But what concerns me most is I didn't get excited by the prospect of Oshkosh this year. It was looking like just another week on the calendar that had been scheduled. I need to go fly in an RV. (More)
    Related link:
    VAF thread

    RV FORUM SCHEDULE AT OSHKOSH

    THE RV-12
    Tuesday 7/29
    8:30 - 9:45 a.m.
    Discussion about building and flying a Van's RV-12 from a pilot's perspective. Van presents. Forum Building 7 (The big one) More...

    FIBERGLASS FOR RVs
    Tuesday 7/29
    11:30-12:45 p.m.
    Composite Workshop 16
    Sam James demonstration of fairing with use of glass; correct procedures and use of glass. (Editor's note: This, again, is a horrible place for this forum. It needs to be on stage with a projected view. Get their early. If you're not in the first dozen or so, you can't see anything). (More).

    RV-10 TO ECUADOR
    Tuesday 7/29
    2:30-3:45 p.m.
    Pavilion 9
    Steve Saint took a flight in an RV-10 down to Ecuador to have it repainted, a new panel and new interior was a great adventure. A non-stop from Costa Rica to Cozumel, Mexico then across the Caribbean to Key West and landed with 30 gallons of fuel, it wasn't around the world, but this sort of trip is an easy "one stopper" for the new generation of Experimentals like the RV-10. (More...)

    SO YOU WANT TO BUILD AN RV
    Wednesday 7/30
    11:30-12:45 p.m.
    Ken Scott tells you what you need to know. (More...)

    BULDING AN RV FASTER AND BETTER
    Wednesday 7/30
    1 p.m. -2:15 p.m.
    Techniques, Tools & Tricks for Building an RV Aircraft Better and Faster from Wally Anderson. (More...)

    MY RV-6 WITH A ROTARY ENGINE
    Thursday 7/31
    8:30-9:45 a.m
    Forum 2
    David Atkins will share his 14 years of flights in a rotary engine. He has flown to Oshkosh for EAA AirVenture for 14 consecutive years and to Lakeland, Fl four times in his RV-6. He'll discuss some of his fun and experiences of RV flying, as well as improvements he's made over the years. (More).

    THE RV FROM AN ENGINEER'S PERSPECTIVE
    Thursday 7/31
    8:30-9:45 a.m.
    Pavilion 7
    Discussion of Van's RV kitplanes from an engineering perspective from Van. (More)

    FIBERGLASS FOR RVs
    Thursday 7/31
    11:30-12:45 p.m.
    Composite Workshop 16
    Sam James demonstration of fairing with use of glass; correct procedures and use of glass. (More).

    Related links:
    Who's flying to Osh and on what days (RV-10 List)

    Doug Reeves' coverage live from Oshkosh (VAF)


     

     

    BUILDER TIPS

    Grease gun fitting modification
    Grease gun fittingAircraft fittings are often close tolerance and greasing them can be a challenge. The grease gun sometimes won’t easily release from the Zerk fitting until the pressure is relieved. If you are not careful, you can break the head off the Zerk fitting removing the grease gun. I solved this problem by adding a pressure relief valve to my grease gun. I bought the parts online from McMaster-Carr. Be sure to get high-pressure fittings. They cost a bit more but a grease gun can deliver 10,000 psi. The valve I used is rated at 7,500 psi. When the valve is opened to relieve the pressure, only a small amount of grease comes out. I installed a longer flex hose at the same time. This makes it easier to reach out-of-the-way fittings and when you have someone helping with the work. (Peter Cassidy in EAA 162 newsletter)

    Filing aluminum
    Vixen fileThis week's EAA homebuilders tip:. A vixen file is idea for rapid removal of aluminum, brass, copper and hard rubber. In this video, Jason Monnett of Sonex Aircraft demonstrates using a vixen file to clean up a piece of aluminum cut on a bandsaw. (More)


    ND alternator mod
    Alternator modAfter reading way too much verbal abuse and other hand-wringing about the subject of internally-regulated alternator "dangers", I finally decided there has to be a better way than Kilovac contactors and transorbs or praying to various deities to making these things "safe". Why not just modify the alternator in such a way as to prevent its ability to run away in the first place? One vendor in particular does it already, so I thought that if they can do it, surely it isn't impossible. So, I took my ND alternator apart one afternoon and stared at the pieces for a while. I also found manuals of the internal workings on the web and studied those too. I came up with a method, which I've attached here, that takes about an hour to accomplish and costs next to nothing. The modification makes it impossible for the alternator to "run away" (unless the 5A field breaker malfunctions). In a nutshell, what it does is remove the always-on B+ field feed and replaces it with power from the "IG" terminal. This way, all of the field current goes through the IG terminal. Pull the field breaker and there is no possible way for the field to get power any other way. (Heinrich Gerhardt on Aeroelectric list. Documentation provided)
    ARCHIVES
    See a list of previous RV Builder Hotlines organized by date and subject. (Go)
    PICTURE OF THE WEEK

     

    A turf runway, right next to the volleyball court. And pretty women taking your picture while you turn on the smoke and zip by in your RV. Is this heaven? No, it's John Furey's strip in Malvern, Ohio. (Photo by Ted Chang)

    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.