Re: New GU canard wax?, Q2 status


James Postma <james@...>
 

Ed,

An early factory newsletter recommended Rain-X on the canard as a rain fix.
I am going to test with wet wing on take off. This will be an unstick test
same as required for airplane certification; e.g. ground roll with full
back stick and note speed at canard liftoff. Test with:
dry as is
water as is
Rain-X dry
Rain-X wet

If it works as expected one should see a big difference from dry as is and
water as is; no difference between dry as is and Rain-X dry; and perhaps a
small difference between dry as is and Rain-X wet.

I would definitely do the unstick test on your leading edge tape before
flight.

James Postma
james@...
(253) 584-1182 9:00 to 8:00 PDT (GMT-8) voice

----- Original Message -----
From: "Edward N. MacLeod" <ed@...>
To: <Q-LIST@...>
Sent: Wednesday, August 30, 2000 2:34 PM
Subject: [Q-LIST] New GU canard wax?, Q2 status



Hi gang,

Just a thought:
There was a brief infomercial on a new kind of car wax. Instead of
water beading up on the surface, like regular wax, the water spreads
out. The water film gets thinner and thinner until the surface becomes
essentially dry. Has anyone seen this commercial? It sounds like a
possible GU rain fix. I sure would like to take a razor blade to those
vortex generators.

Q2 Status:
My Q2 (Revmaster) is almost ready for flight #2.
I relocated the roll trim so that it can be readily adjusted in flight.
The engine is running great at all speeds. The carb is tuned for
exactly 100deg F EGT drop from full rich to max EGT.

I am not sure this is a problem, but I am only getting 2900 rpm on fast
taxis. Ground acceleration seems like it could be better. The prop is
a 54-48, Arrow Prop. The airfoil thickness on the prop seems thick for
the horsepower. It also has plastic tape over the leading edge for rain
tolerance, the tape is fairly thick (>.005") and not faired into the
wood.

Any thoughts on the above are appreciated.

Big Thanks,

Ed




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