rdewees(at)mindspring.com
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 Posted: Fri Mar 28, 2008 4:55 am Post subject: 601 performance on 80 HP |
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I think the performance of the HDS is a lot better than most realize.
After assisting me in testing my HDS/Jab 3300 TD a few years a friend
of mine came across a HDS project that begged for completion. Mike
built it clean straight and light, with minimum weight and paint. He
put an A-75 Continental in it and the all up weight was 576# and no
electrical system and 16 gallon header tank. His consistent performance
was 112-115 mph at cruse setting for the motor. Climb was adequate but
not thrilling, but it qualified for Light Sport with it's landing
numbers. He sold it to a student pilot who raved about it's performance
over the C 150 he had been flying. I think weight is the key factor in
601 performance and the XL airfoil and wing are even more efficient. I
think a very light XL could be a lot better performer than you think.
Ron
N601TD
| Quote: | Matt,
The analogy to the C150 is pretty close, but I'd think improved by the
601s weight advantage and wing. The HD would be less because of the
thickness of the wing.
On the other hand, a HDS would not be a performer because the 23 foot
wingspan needs a 100 hp engine to climb and cruise decently. With my
Stratus Subaru, the
economy cruise is excellent and climb is very good, but the climb is
nowhere close to an HD with the same engine.
Larry McFarland 601HDS at www.macsmachine.com
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