Subject: Dimple Tape drag reduction
From: Paul
Date: 6/27/2000, 9:39 PM


tommayer wrote:

Paul,
    What is your guess of its value on wings and stabilizers?  Tom

I don't know about dimple tape but vortex generators delay the stall.
I think this is one of those things that claims can be made for it
but it is hard to disprove. In the mean time we can sell it to the
technically naive and make a bunch of money. Hope springs
eternal.

Paul Lamar


Dale Smith wrote:

Like yourself, Paul, I am skeptical of the claims made for "Dimple Tape".

However, along the same lines ... I was going over an old issue of Sport
Aviation (24 August 1994) when I  spotted an article about a very clean
looking Lancair 320 owned by Mike Campbell (cover picture, also)

He added " turbulator tape" (picture below) critically placed, and gained

a full 6 knots!  That would amount to a significant drag reduction on
this
already very clean airplane!  He supposedly got the trick from the
sailplane
guys.

Perhaps there is something to this after all?

When the checkered flag drops the BS stops. Let him race. Look at the race planes.
Don't see no turbulator tape :-) Here at Santa Paula we have some of the
fastest experimental airplanes in the world. Klause Saviour Variez 252 MPH. 
Tracy Saylor RV6 238 MPH. Dan Wright SX300 over 300 MPH. Won S&F outright one year.
Competed at Reno. Dave Anders hangs out here when he can. Second at Reno 
in his Questair Venture and 258 MPH in his RV4. CAFE all time record holder.

Paul Lamar

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