R - Dave Fife's Hoerner wing tips
Posted: Fri Feb 17, 2012 10:33 pm
Hi everybody !
As most of you know, when Dave Fife made the first set of
his Hoerner wing tips for the Rebel, he and Curt Martin fitted them
to Curt's Rebel and did a thorough and scientific study of their
effects on performance. They flew a full series of tests, measuring
takeoff distance, speeds in 2 directions, checked with GPS, etc.
They then landed, changed to the new tips, added fuel to be the
same weight as the first tests, and flew them all over again.
They found a reduction in takeoff distance of more than 20%,
and a couple of mph increase in cruise, and a couple of mph reduction
in stall speed. The strongest comment was how much the tips improved
the low speed controllability and feel. Several Rebels near us
have reported similar results, as well as excellent quality and
good fit of the tips (combined with Dave's tail tips, a savings of
over 60 hours in build time was a nice bonus !)
--------------------------------------------
This is a very delayed, totally UN-scientific flight test
report on my Rebel with the Fife Hoerner tips installed. I put them
on over 2 months ago, and flew them out of a grass strip for the
first flight. Here are my comments and observations:
Wheeeeee !!! Yaaaaahooooooo !!!
She got light on her wheels MUCH sooner than before,
and climbed like the proverbial homesick angel !!! A VERY noticeable
improvement. The approach and landing showed a marked improvement
in speed control - it was easier to peg the speed exactly where
I wanted it. I like them !
---------------------------------------------
Well, that's it, so far. Next I'm going to add the
Angus McKenzie STOL kit (full length wing cuff & fences), on my
way to the ultimate hot-rod Rebel !! Should have her painted
soon, too - so she'll be all ready for the big Ramble next year.
Hope you can join us for at least part of the trip !!
.......bobp
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As most of you know, when Dave Fife made the first set of
his Hoerner wing tips for the Rebel, he and Curt Martin fitted them
to Curt's Rebel and did a thorough and scientific study of their
effects on performance. They flew a full series of tests, measuring
takeoff distance, speeds in 2 directions, checked with GPS, etc.
They then landed, changed to the new tips, added fuel to be the
same weight as the first tests, and flew them all over again.
They found a reduction in takeoff distance of more than 20%,
and a couple of mph increase in cruise, and a couple of mph reduction
in stall speed. The strongest comment was how much the tips improved
the low speed controllability and feel. Several Rebels near us
have reported similar results, as well as excellent quality and
good fit of the tips (combined with Dave's tail tips, a savings of
over 60 hours in build time was a nice bonus !)
--------------------------------------------
This is a very delayed, totally UN-scientific flight test
report on my Rebel with the Fife Hoerner tips installed. I put them
on over 2 months ago, and flew them out of a grass strip for the
first flight. Here are my comments and observations:
Wheeeeee !!! Yaaaaahooooooo !!!
She got light on her wheels MUCH sooner than before,
and climbed like the proverbial homesick angel !!! A VERY noticeable
improvement. The approach and landing showed a marked improvement
in speed control - it was easier to peg the speed exactly where
I wanted it. I like them !
---------------------------------------------
Well, that's it, so far. Next I'm going to add the
Angus McKenzie STOL kit (full length wing cuff & fences), on my
way to the ultimate hot-rod Rebel !! Should have her painted
soon, too - so she'll be all ready for the big Ramble next year.
Hope you can join us for at least part of the trip !!
.......bobp
-----------------------------------------------------------------
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username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
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