Well I found this interesting! (Stall tests)

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Nigel Argall
Posts: 121
Joined: 20 Mar 2015, 18:26
Location: Cornwall

Well I found this interesting! (Stall tests)

Post by Nigel Argall » 20 May 2019, 13:42

Short clip of a full size glider (not sure which?!) doing stall tests. Things to note:
1) Almost perfect laminar flow - flow sticks nearly to the trailing edge. Are our model gliders ever that efficient?
2) Stall clearly starts at the TE and works forward quite progressively.
3) Wing completely stalled in the spin - what you'd expect. Actually it looks like the air is flowing backwards but i guess that is an optical illusion because the top surface is just covered in rotors of air.
4) Airbrakes - difficult to tell but seem to affect the airflow for quite a way out from just the brake itself.

https://www.youtube.com/watch?v=6SLNGXTSxUk

spike spencer
Posts: 101
Joined: 17 Mar 2015, 22:23
Location: Salisbury UK

Re: Well I found this interesting! (Stall tests)

Post by spike spencer » 20 May 2019, 18:33

Short clip of a full size glider (not sure which?!)
Astir CS - See Logo under the cockpit canopy frame ;)
Spike S.

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