Re: Sparrow strainer stall
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I don't have a clue as it has been a looong time ago when I set up the strainers. They were adjustable at first but the extra bolt heads sticking out in the wind and also the rough texture of the unfinished stainers made the elevator ride up until I put an upside down flap on both of them to make them ride level in cruise. When I finally glassed them into place they were more effective without the bolt heads so I sanded off enough of the upside down flap to get back cruise level. Then I filled and sanded the strainers and again they were more effective so I had to sand off equal amounts of upside down flap on the strainers for cruise pitch. Then lastly I finished primed and painted them and I ended up sanding all but a very small amount of those upside down flaps. So I got back to almost plans built for level. Then the stall showed up when pushing over to lower the nose.
I probably have the most experience with the strainers in "Quickiedom" but then mine are a bit non standard.
I am almost finished with pulling the number 4 cylinder chasing an oil seep. I looks like the through bolts can leak through the treads on many engines so I am putting an o ring into the 2 through bolts and remounting the cylinder and will let you all know how this plays out.
Stay tuned for the "Old and the restless quest for Quickie perfection"!
---------- Original Message ----------
From: "One Sky Dog via Groups.Io" <Oneskydog@...>
Subject: Re: [Q-List] Sparrow strainer stall
Date: Fri, 20 Mar 2020 03:55:32 -0700
I found your previous description of stalling the sparrow strainers.
What is the angle between the lower elevator surface and the bottom of the sparrow strainer airfoil?
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On Mar 19, 2020, at 7:39 PM, Bruce Crain <jcrain2@...> wrote: