Subject: | SV: Europa-List: Re: wing lift/drag pins - ADDITION |
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From: | Sidsel & Svein Johnsen <sidsel.svein@oslo.online.no> |
Date: | Mon, 1 Jul 2013 17:37:09 |
In my most recent posting, I wrote: "...a glider is always going down, or rather gliding down - down relative to the air mass through which it moves". The exception is of course if using the mass inertia of the glider for a short-duration movement up through the air. This is when the in-the-direction-of-the-centerline forward force on the wing may exceed the opposite-direction wing drag component, and the cross tie bar comes under tension, not compression. Regards, Svein |
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