Re: Sparrow strainer stall
Say Jay I
think the tufts on the elevator were moving the same direction in normal cruise (from outboard to inboard) regardless of the sparrow strainer stalling or not stalling. It could be exacerbating where the air flow goes due to the strainers moving up and being blanked by the elevator perhaps. I except when I pull the stick and lower the strainer back to cruise pitch or lower it still takes stalling the canard to alleviate the sparrow strainer stall. Maybe my outboard strainer is the difference between my Q and others but then I believe DFly's have outboard maybe. Charlie can you back me up on that? Or maybe no one else has actually pulled up and unloaded their Quickie to the extent that I have.
It has bothered me for a few years that the airflow on the elevator move inboard like it does. To an aerodynamisist it means a big loss in speed doesn't it? I am sure when the LS1 airfoil came out they had it working well. Maybe it's just me.
Please note: message attached
From: "Jay Scheevel" <jay@...>
Subject: Re: [Q-List] Sparrow strainer stall
Date: Thu, 19 Mar 2020 09:39:12 -0600