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Type: Posts; User: MPerkins

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    BlueTail has an owner/operator logbook for...

    BlueTail has an owner/operator logbook for $60/month, stores everything on the cloud. Same as PlaneLogix at $50/month. I don't know of any system that resides on your own computer and that doesn't...
  2. Thread: Upholstery

    by MPerkins
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    Fabric flammability standards do not apply to...

    Fabric flammability standards do not apply to E/AB aircraft.
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    The surface of any resin needs to be well-sanded...

    The surface of any resin needs to be well-sanded before adding another layer if a resin surface is cured completely (24 hours). No type of resin has a "waxy" surface. If it did, no amount of sanding...
  4. Thank you for posting this spreadsheet. I have...

    Thank you for posting this spreadsheet. I have been thinking about doing some prop testing on a ground-adjustable prop, and this is likely to be of significant help.
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    When I built my Kitfox back in the 90s, it was...

    When I built my Kitfox back in the 90s, it was fun (and very useful) having a couple of other Kitfox builders nearby; eventually we became best of friends. If you get an opportunity to visit other...
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    In building a Tango, I do some resin research...

    In building a Tango, I do some resin research from time to time. I found a boating link that discusses your issue. https://downeastboatforum.com/threads/polyester-epoxy-compatibility.1821/ . . . But...
  7. Sticky: Commercial warning

    Article: "Tetrachloroethylene, a deadly danger in brake cleaner": https://www.envirofluid.com/articles/tetrachloroethylene-a-deadly-danger-in-brake-cleaner/
  8. In-Flight Engine Break-in Versus Ground Break-In

    I'm interested to know your thoughts on engine ground break-in vs in-flight. Curious who's doing it on the ground (and solving the cooling and FOD problems), and who's doing it in the air during...
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    I agree with everything said about having several...

    I agree with everything said about having several TCs on a project. I have never seen a downside to this, and it seems that each TC has always had his own valuable input. But there seems to be a bit...
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    At some point, most of us find benefit from...

    At some point, most of us find benefit from having installed two additional shutoff valves, one each for tank. Agreed that they're superfluous 99.9% of the time, but:
    1) if the airplane is parked...
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    This is the way I understand it. . . . To fly in...

    This is the way I understand it. . . . To fly in Mode-C areas beginning in 2020, the aircraft must still be equipped with a Mode-C transponder, even if it's equipped with ADS-B out. I understand that...
  12. Thread: Stall Horn

    by MPerkins
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    Hi Mike, There's an article available online...

    Hi Mike,

    There's an article available online by Tony Bingelis that discusses stall warning devices. It's at:...
  13. Most issues with access to accessories for...

    Most issues with access to accessories for maintenance are overcome by requiring that the engine be removed from the aircraft. There are some pretty good photos of 912 installations on the Zenith...
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    The side of the trim tab is pretty much a...

    The side of the trim tab is pretty much a function of mechanical convenience factors (as you point out), and not so much aerodynamic ones. To keep bending moments low for stress and flutter reasons,...
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    Bob - This is a very clever idea. Never saw...

    Bob - This is a very clever idea. Never saw anything like it before. . . . It's great to see innovation in things that make our projects possible. (I remember all-too-well cracking a wing rib moving...
  16. Aside from the obvious clearance issues for...

    Aside from the obvious clearance issues for accessories, hoses, and tool clearance to work on those accessories, the biggest factor is weight and balance. A few pounds one way or another in the aft...
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    I have a couple recommendations for you (as an...

    I have a couple recommendations for you (as an electronic engineer and aircraft builder). Modern Whelan strobes are designed to work in close proximity to other aircraft systems, even radios, in that...
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