Looks like the wheel pants I got with the kit will need a lot of

work.

Perhaps there are some pressure recovery versions out there that I

don't

know about.

Paul Lamar

Paul - the wheel pants you got are probably early, and not very

good.

When you get that far, you should drag them out and see if we can
set you up with something better, - Vance

Paul and Vance

Do you think you can post an illustration of what a good wheel pant

looks

like. I have just spent 2 weeks making fairings for the gear legs and

the

brake discs and hope I won't have to start again.

Thanks

Mike Pienaar

I don't have any pictures right at the moment. Let me see if I can find
Klauses site. Ah soo. Here it is.
http://www.lightspeedengineering.com/Services/WheelFairings.htm
These are based on the laminar flow NACA 65-021 wing section
more or less.

Paul Lamar

Paul

Thank you very much, any suggestions on how I can modify the existing

wheel

pants and where do I get specs on the NACA wing section

Thanks

Mike Pienaar

There is a really cheap book called theory of Wing Sections by
Abbott and Von Doenhoff. Published by Dover in paper back form.
Therein lie coordinates of many different airfoils.
Also look at the NACA 66 021 series.

Paul Lamar

Thanks Paul, I'll look for it.

Mike Pienaar

The original wheel pants for the Cruiser had been fitted for low profile
tires
and were both too vertically shallow and had trailing edges that were too
blunt. Klaus's pants are undoubtedly very good if they will fit your
installation.
The intersection of the gear legs to the pant are also critical, if you can
make
them vertical to the local curvature that is good. If a nasty trough happens
there use generous fillets even if the frontal area grows a bit. I am not a
big
fan of the cusp aft section, I think a somewhat pointy symetrical foil shape
with at least 3 to one aspect ratio is hard to beat, Exposed brake stuff and
lines are of course bad. - Vance

 
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