"Udo Rumpf" wrote in message
.. .
Hi all,
to day I checked, what I thought was the rear exhaust vent of the ASW24.
I tried, after removing the rudder, insert a thin wire past the tail wheel
fender.
I could not get this thin flexible wire through.
I inserted a long vacuum hose from the cockpit side, to the very end of the
tail
and hook up the blower side. The results were feeble indeed.
What have other ASW 24 or 27 owners done to improve this situation?
Regards
Udo

Udo,

I suspected exhaust venting may be limiting cockpit ventilation on my
ASH26E. I haven't finished testing yet, but what I have done is to hook up a
shop-vac, on blow mode (after carefully cleaning it!), to the nose inlet to
pressurize the cockpit. I didn't have the wings attached, so taped up all
the fuselage wing root openings. The only outflow I could detect was at the
rudder cable fairing at the tail - - nothing at the gear or engine bay
doors.

On my non-scientific test, the flow was obviously restricted (the shop-vac
puts out a lot of air) as my temporary wing root covers ballooned out from
the pressure.

I plan to check cockpit vent flow with and without a temporary reverse scoop
in the plexi window etc. And also repeating the shop-vac test with wings
attached to make sure none is leaking out through wing openings - - I doubt
it is.

I've seen a picture of a 26E with a reverse facing, flush scoop on the lower
cockpit fuselage side . . . so others have dealt with this issue and come up
with solutions of their own. Any other info would be welcome . . .
--
bumper - ZZ
"Dare to be different . . . circle in sink."
to reply, the last half is right to left





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