On Feb 20, 6:26*pm, Eric Greenwell wrote:
wrote:
On Feb 20, 8:35 am, jcarlyle wrote:
Probably what's happening is that the weather sealing around the vent
flap has failed, leaving a small gap when the vent is closed. Have you
checked the sealing of the vent when it's closed?

-John

I'll check that seal if I can. *I'm going to try an re-create the
issue on the ground with a shop vac or leaf blower. *Of course I might
not be able to hear the vent noise over the motor then :-)

It's not the canopy seal. *That used to whistle right by my ear until
I replaced the seal and added foam.

Be really careful with blowers if the pitot is in the nose and will see
the blower pressure.

--
Eric Greenwell - Washington State, USA
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Thanks for the warning, I had not though of it, but I do think that
the pitot in my Grob is from the tail probe. I'll make sure before I
power up the blower. My goal would be about a 120 knot flight
pressure anyway, but might not have the ability to fine tune the
blower.

Thanks
Todd
3S