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morganew -> RE: H9 Jackal 50 Prop Jet (9/14/2010 9:47 PM)
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quote:
ORIGINAL: summerwind quote:
ORIGINAL: _Tommy D quote:
ORIGINAL: robbyvaughn9 my 56 is still on the breakin run with 1 gallon run thru it now, but is turning a 9x8apc at 18,400 peaked. the torque that this engine produces turns the 9x8 like it's just a toothpick. this airplane should really scream with this combo. Is a 9'' disc enough for the Jack? I wonder what kind of RPMs that motor would achieve with a 10x7ish propeller? it'll turn a 10x7 without a doubt.........depends on what happens in the air. i had my 56 on a Sundowner, and the 9x8 turned it into an animal. i think it lands slower with a 10 inch disc, but the 9 inch prop pulled the 6 lb SD straight up with acceleration. The jackal will weigh in closer to 9 lbs when completed, closer to that of the Cermark f16 prop jets. Can we expect the 56 to perform as well with this weight? I do agree about the 56 on a sundowner, I've seen it myself..but not sure about the performance of the 56 on the jackal...i think I will go with the 90LX with an 11x8 prop. This turns 16K for me on the bench.....either way I will wait until others have ventured and report back before I act... For the record, I have the 56 on my weston magnum...unbelievable (18600 with 9x8 APC)...but the magnum is a very light airframe...
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