Vance W Jaqua wrote:

Paul- I was a bit suprized that you thought the effective drag
area for the cruiser was excessive. I doubt that you can find
a fixed gear 4 place with much lower numbers. For comparison
some calc/estimates for some super slick planes would be
Nemisis of course - probably about 0.8 with the other gold
class F1's about 0.9. The absolutly unbeatible AJ special
about 1.25, Klaus's amazing Veri EZ about 1.5 (most EZ
about 1.8) and "Long"'s about 2.0, RV 4 maybe 2.0
RV 6 about 2.1 (except Tracy's), KIS 2place 2.0
Most of the 4 place fixed gear compsites probably range
from the Cruiser at 2.5 to the Diamond 4plc (Katana) about 3.5
Vance

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

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