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Type: Posts; User: Sport_Pilot

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  1. Replies
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    It will be greater because thrust is to the...

    It will be greater because thrust is to the square of the change in velocity. The formula is F = .5 * r * A * [Ve ^2 - V0 ^2] where Ve is the air velocity downstream of the prop and V0 is the...
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    I didn't come up with it, that is what the prop...

    I didn't come up with it, that is what the prop thrust calculator came up with.
  3. Replies
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    56,728

    Bax, What is the material used on them? I...

    Bax, What is the material used on them? I believe some have repaired similar regulators no longer supported by cutting the right material to shape and gluing a small metal plate where the spring or...
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    I was in Pheonix three weeks ago. It was 115! ...

    I was in Pheonix three weeks ago. It was 115! If you walk more than a couple hundred feet the sidewalk would blister your feet though your shoes! Well they felt like they would blister anyway.
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    I think I get it, rhymes with supple budda! ...

    I think I get it, rhymes with supple budda! Supple Vadda Baby! l
  6. Replies
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    Will be vacationing in the area next week and...

    Will be vacationing in the area next week and found out that the hotel is on the other side of the freeway from this field, so will likely visit. How do you pronounce Sepulveda? I don't want to...
  7. Replies
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    I am very surprised that no one knows why nitro...

    I am very surprised that no one knows why nitro was invented!

    A John Force Burnout of course!

    2117721
  8. Replies
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    You would think that the velocity of the air...

    You would think that the velocity of the air would increase in proportion to the RPM but actually it does not. Also consider that the resistance of the blade will increase by the square of the...
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    If you hardly notice the difference in 500 RPM...

    If you hardly notice the difference in 500 RPM then I can understand your pessimism. However to me 300 RPM is a huge difference and the only reason I would use 25% or more nitro. Engine becomes...
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    3,576

    A good thing about glow is there are no ignition...

    A good thing about glow is there are no ignition modules, no worry about a spark to ignite leaking fuel. Not to mention more power for the same sized engine.
  11. Replies
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    1,787,128

    Flying airplanes takes more brains. Enough...

    Flying airplanes takes more brains. Enough brains to know if you steal you will eventually get caught. Especially in the open were every security camera and cell phone can take your picture and...
  12. Replies
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    VP is Chinese, or at least a foreign import. The...

    VP is Chinese, or at least a foreign import. The only American maker Agnus will not sell nitro the drag racers because they do not believe many of the racers store and transport their product safely...
  13. Replies
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    69,239

    I recall a few bird strikes that did not leave...

    I recall a few bird strikes that did not leave blood spots, so it could have been a bird strike as well.
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    I know a small bird will fly though a tail rotor...

    I know a small bird will fly though a tail rotor without crashing the helicopter, not sure about a larger bird, but I suspect only the larger quads would do significant damage to the tail rotor. ...
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    The airliner will not be happy, but the public...

    The airliner will not be happy, but the public won't care and it will be a non event.
  16. Replies
    2,484
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    69,239

    IMO there will be no major accident. There may...

    IMO there will be no major accident. There may be a midair with a quad, but it will most likely result in a small dent or ding on the aircraft. Not saying it is not possible, just that it isn't...
  17. I think you mean a pumped carb? Both have gas...

    I think you mean a pumped carb? Both have gas carbs. Old 30's engines had a gas carb that was just a venture and a spraybar. My lawnmower has a gas carb with float that would be totally unsuitable...
  18. Replies
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    I do not believe they can write new regulation...

    I do not believe they can write new regulation that these people wouild not also ignore. Just need more people enforcing the law. In time this will pass, especially after a few arrests.
  19. Replies
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    Good idea. I don't recall an issue with that on...

    Good idea. I don't recall an issue with that on mine, but then I have the older twin needle carb. I recently bought a .46 also with a twin needle, but I think it has the wrong needle for the main. ...
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    My .50 is not a revver but performs better than...

    My .50 is not a revver but performs better than most .46 with a bigger or higher pitched prop.
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    Opps, it was 45 in Pheonix, not 32. I subtracted...

    Opps, it was 45 in Pheonix, not 32. I subtracted from the wrong number.
  22. Replies
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    1,787,128

    40 degrees is Hot and 0 is warm? I think you...

    40 degrees is Hot and 0 is warm? I think you have your conversion wrong. The first is deadly hot and the later is right at freezing!
  23. Replies
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    So which has more power, the .46 or .50?

    So which has more power, the .46 or .50?
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    I was in Phoenix last Friday and it was a record...

    I was in Phoenix last Friday and it was a record breaking 32!
  25. Thread: Pumps

    by Sport_Pilot
    Replies
    3
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    149

    I think some of the Perry pumps are just bad. ...

    I think some of the Perry pumps are just bad. Probably in storage too long. I have never had a problem, but apparently the regulator doesn't work on many of them.
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