Votex dimple tape for props?

[Fifinella]

Reading the post here on wing vortex generators, I ran across this over on the Pietenpol forum, someone used dimple-tape http://www.wingsandwheels.com/page28.htm on their prop and said they got a increase efficiency from there propeller.

Comments?

Do not know if this is the same dimple tape used.

From the Pietenpol forum:

Well folks, just test flew the prop with the vortex tape on it, it actually works. I can pull the power back even further to maintain 78mph, and 2900rpm (indicated). It is about 100 150 rpm faster on climb-out. Worth the effort I guess, just not sure how long it will stick to the prop before it starts coming loose.
Weather permitting I'm headed out at 7am tomorrow.

Shad

It's dimple tape. Think golf ball dimples.

The original dimple tape web site is gone, but you can buy the stuff at
any vinyl sign shop. Cut it into 1" wide strips and apply it to the
thickest part of the airfoil (prop, wing, aerodynamic strut, etc.).
Works like vortex generators. Bill Rewey put it on his prop and gets
10% increase in performance and quieter operations, too. Glad to hear
that Shad is getting similar improvement.

Shad, did you super-glue it on to the prop?

Dan

No I just used the self adhesive backing, Wasn't sure if I would get any vibration or not, and I wouldn't have time to refinish the prop if I had to sand off super glue. Ours is not the dimple tape, it looks like a pinked tape about 1/4 in wide or so. I had dad order it and he got the stuff from aircraft spruce, probably not quite as good as dimple tape, but I will try dimple-tape on the spare prop when I get time.

Shad

Link to an article I found: [ame=http://www.google.com/search?q=Dimpletape&ie=utf-8&oe=utf-8&aq=t&client=firefox-a&rlz=1R1GGGL_en___US357]http://www.google.com/search?q=Dimpletape&ie=utf-8&oe=utf-8&aq=t&client=firefox-a&rlz=1R1GGGL_en___US357[/ame]

 

[JimC]

 

[Fifinella]

 

[JimC]