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Thomas, it was top speed. He said the prop
stipping had a little more gain than the wing stripping and he felt that the
prop could have been cleaned up some to maybe accomplish the same thing.
The Tailwind guys are starting to go with Craig Cato Props now because they feel
he is closer to the black art of prop carving than others. One of the
Tailwind fellows is an engineer for Whirlwind props and has one on his Tailwind
W-10 , 0320,160, MP 22, rpm 2700, speed 207, so if you fellows that are still
working would like an adjustable pitch prop that weighs 30 lbs, I believe the
price for unit, governor and control is around $8500.00. You can check
this on the internet. JohnD
----- Original Message -----
Sent: Wednesday, March 14, 2007 3:32
PM
Subject: [FlyRotary] Re: weight in
quiet
7mph more topspeed or less stallspeed?
On 3/14/07, John
Downing <downing.j@sbcglobal.net>
wrote:
Thomas, a few years back, dimple tape was
promoted to work like the vortex generators, being added to the main
wing and also on props and canards. There was an article in
Sport Aviation on it, but I don't recall when. One of the fellows here
tried 1/8" pinstripping tape, 2 each placed 1/8" apart on the wings and prop
spanwise of a Thorpe T-18 and he claimed is was good for 7 mph. You
need to cover with paint or polyurethane to keep it in place. JohnD
----- Original Message -----
Sent: Wednesday, March 14, 2007 8:10
AM
Subject: [FlyRotary] Re: weight in
quiet
Where would you use "Dimple Tape"?
Thomas
On 3/14/07, John
Downing <downing.j@sbcglobal.net > wrote:
Dave, you can always add dimple tape.
One of the Tailwind guys said his plane was $240.00 lighter, no faster
though.
JohnD
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