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Type: Posts; User: Ed Leugemors 43270

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  1. Is that a trim "wing" hanging out the back of his...

    Is that a trim "wing" hanging out the back of his gimble head? Ed L
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    Poll: Jim Glad to hear your still making progress on...

    Jim
    Glad to hear your still making progress on all fronts. Ed L
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    Poll: Jim You still alive, noticed you have a 1/4...

    Jim
    You still alive, noticed you have a 1/4 million views on your thread so must be some interest here.
    Ed L.
  4. Chuck thanks for the info, its always follow the...

    Chuck thanks for the info, its always follow the money it seems.
    Ed L.
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    Aluminum is a life limited metal. Use it long...

    Aluminum is a life limited metal. Use it long enough and it will crack. The higher the stress the faster it cracks. There are calculations that will tell you useful life. Steel can be designed...
  6. I think 32 kg per hour X 2.2 pounds per kilo / 7...

    I think 32 kg per hour X 2.2 pounds per kilo / 7 pounds per gal diesel = ~10 gph. Still its a turbine power to weight cant be beat.
    Ed L.
  7. Thanks John, I realize That PRA is not connected...

    Thanks John,
    I realize That PRA is not connected directly. There is some good information in that site. I guess I go find a throw down computer to access it.
    Ed L.
  8. rotary wing forum is being flagged as an unsafe site by my google chrome

    Rotary wing forum is being flagged as an unsafe site by my google chrome

    Any body have any insight on this problem?
    Ed L.
  9. Sticky: Brock Like the idea of a using a pancake motor. ...

    Brock
    Like the idea of a using a pancake motor. It all about torque for electric motors, James L Judge and I have been hashing out hp requirements for a jump style prerotator, see this thread...
  10. Ok Thanks Ed L

    Ok
    Thanks Ed L
  11. Sport flying magazine subscription

    John
    When I joined I got one issuse of the sport mag Mar-Apr 2018 and none since can you check the mailing address you have for me?

    Ed Leugemors
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    Poll: Jim Ok watched a youtube on replacing a...

    Jim
    Ok watched a youtube on replacing a motorcycle clutch see that the throwout bearing is called a lifter. How are you accessing this lifter to lift the pressure plate. No hurry just curious....
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    Poll: Jim Is your clutch cable or hydraulically...

    Jim
    Is your clutch cable or hydraulically operated? When disengaged is it running on a throw out style bearing? I don't think the clutch will make much heat when disengaged. I worked summers for...
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    Poll: Jim Sounds good, keep me posted and send a...

    Jim
    Sounds good, keep me posted and send a picture when you get close.

    Ed L.
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    Poll: Jim and all have a happy 4th. 21gpm X 2900 psi...

    Jim and all have a happy 4th.

    21gpm X 2900 psi / 1714 = 35.5 hp
    gear ratio to pump 68:38 teeth guessing big gear on clutch.
    driving pump to 3600 rpm so (3600/68)X38 = 2011 rpm at engine because...
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    Poll: Jim Alright look forward to seeing that. Ed L.

    Jim Alright look forward to seeing that.
    Ed L.
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    Poll: Jim I get it. Rotor RPM will vary with a lot of...

    Jim
    I get it. Rotor RPM will vary with a lot of different factors. The spinup on all these versions of prerotation is at a fixed blade pitch and some are holding the total rotor pitch relative to...
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    Poll: Jim In the you tube on the hydraulic prerotator...

    Jim
    In the you tube on the hydraulic prerotator they said they only went to 300 rpm - 50% over normal? Because your so close maybe try to get your rotor turning with what you have and minimal cost...
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    Poll: Jim This maybe built of unattainium but...

    Jim
    This maybe built of unattainium but something like this MAXITORQ clutch brake double clutch, hook rotor to one side and propeller to the other side.
    ...
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    Poll: Jim maybe a couple of motorcycle clutches - they...

    Jim
    maybe a couple of motorcycle clutches - they are spring loaded and mechanically shifted. brain won't stop....
    Ed L.
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    Poll: Jim Gear box for testing should be good 40 hp...

    Jim
    Gear box for testing should be good 40 hp x 5252 / 1800 = 116 ft lb vs 137 ft lb (post # 111) close enough for test.
    Torque converter not running in lockup will over heat in short order...
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    Poll: From post #109 I see that I misread the torque...

    From post #109
    I see that I misread the torque rating it's in inch pounds not foot pounds, this is too small.
    Ed L.
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    Poll: Jim For drive shafts 2000 rpm is the limit on...

    Jim
    For drive shafts 2000 rpm is the limit on most assemblies. Remember higher rpm translates to lower torque input, lower weight and lower cost. Try to get the high rpm up to the final gear...
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    Poll: Jim Dick seems pretty sharp and has a working...

    Jim
    Dick seems pretty sharp and has a working system which means he has made a lot of mistakes. Definition of expert - Somebody that has made all the mistakes.

    Let me know where you decide to...
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    Poll: Does any body know the power in setup to the...

    Does any body know the power in setup to the rotor on Dick Degraw's jump gyro. I have never seen a good closeup of the workings there. I'm pretty sure is it mechanical drive.
    ...
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