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    Engine positioning

    It matters plenty, but reality always sets in that keeps perfect possible. You and stuff have to fit in the airframe. Engines are usually only off the shelf. How big an airplane are you designing to fit it all in? Where is the wing, tail, and you in it all?
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    Mazda 13b w/ Tracy Redrive

    I am of the opinion that if you find something you like and you have the money, buy it. Willing to deal with it is the only way something like this is successful. Of course it can be fun too. You will have to accept all the wear and tear fixing will be you. I just had to source a seal for...
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    Question for the Chute Riggers...

    Yes all you need is a rigger who sticks an IOU in place of the silk, like in Catch 22.
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    Mountain plane

    Cam guard additive was invented to try and save the cam before they ended up designing new lifters that required taking the engine apart to fix. The engine is a two piece case; the accessory case is cast into the main case. Oil pump was external, which in its self is pretty handy, but they got...
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    Optimizing fairings for local airflow

    My friend added fairings and pants; cleaned up his parasitic but the biggest change was induced drag by letting the wing fly a flatter AOA trimmed out. Most of the time you will not find 7 mph like he did. If you are cleaning up parasitic drag, the changes are going to be small; they will add...
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    Video: Saving money on Avgas. My favorite Airport

    Sherman use to be a company fuel stop and overnight for the helicopter pipeline company I worked for.
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    Drivetrain Power Loss

    Being a little hard on terminology when everyone here knows what he is saying. It’s about loss of energy and there is a disagreement on how much. It’s been a long time since I had a bike. My 73 Yamaha 750 3 cylinder probably waisted a lot of hp in the final drive, where my 92 Honda CBR600F2...
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    Mountain plane

    If it had been a success, most engines today would have been that design. You could change conical to dynafocal by unbolting the ears and changing to the other. There were obscure constant speed versions. Less pieces.
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    Mountain plane

    AD was an apt name. I know where one is sitting on a pallet. Ford 351C valve train originally. Someone put in the effort to STC a roller cam conversion just to have it all disappear. For a homebuilt what is the most discouraging is they don’t cowl well with stock stuff. If you are an engine...
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    Steps to scratch build a VW

    Mustie1 will show you how.
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    Engine failure turn back.

    First every airplane is different. How much airspeed you loose in the turn and how much glide does the plane have. I know an Ercoupe will go from 110 to 60 under power with a tight climbing turn at full power. That tight a turn no power might make the non stalling plane stall. At least not...
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    Sun n Fun 2021

    I would have loved to come. Never been to SnF. Considering all, sounded pretty good.
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    Mountain plane

    It’s actually kind of weird for such issues. I have seen crop dusters in the median of I 55 with the engine off until it could be fixed and flown out. I have seen a couple of Cessnas in the middle of the road. I’m sure they got tickets, but they did block major roads being damaged enough that...
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    10/23 Raptor Video

    Reliability for sure but I watched a Duke with a Rocket conversion taxi out with all the tires low pressure. The plane sits for a couple of months and then is called upon. The more organized have a mechanic come out and check it over. Check oil, hydraulics, emergency O2, and tires...
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    Video series on TIG welding thin wall aircraft tubing

    Looks like normal beginner welds. You pretty much will see improvement while you build. You may end up redoing some of the first, but solid is solid; that is job one.
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    Mountain plane

    Get a tag for it. Maybe trailer tag.
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    Sun n Fun 2021

    What has been the airplane topics hanging out?
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    10/23 Raptor Video

    The bigger the budget, the shorter the walk around. Ever see a millionaire do a walk around on a Lear? It was good at the last inspection to them.
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    What did you do on your airplane project today?

    Unless it’s health related, you only have to fiberglass once and be done. Hate is short lived.
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    Steps to scratch build a VW

    They are beetles in the US also, but beetles are bugs are they not? And beetles can be cute as a bug. Slang.