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Forum: Tech Log

25th Jul 2012, 02:35

Replies: 13

Using the RAT to estimate airspeed in an emergency.

Views: 2,350

Posted By deSitter

Machinbird gives the common sense answer, to...

Machinbird gives the common sense answer, to stick your finger out the window :)

-drl

Forum: Tech Log

25th Jul 2012, 01:44

Replies: 13

Using the RAT to estimate airspeed in an emergency.

Views: 2,350

Posted By deSitter

Yes, that is why I would think of a wing with a...

Yes, that is why I would think of a wing with a known stall angle per air speed and density. This angle would be found by turning the little wing-paddle until it lost lift. It would probably get you...

Forum: Tech Log

24th Jul 2012, 16:08

Replies: 13

Using the RAT to estimate airspeed in an emergency.

Views: 2,350

Posted By deSitter

I agree a good start - so try this - a deployable...

I agree a good start - so try this - a deployable paddle, a tiny wing, whose stall angle would provide a good airspeed figure. The onset of stall would be measured by moment arm on the paddle axis.

Showing results 1 to 3 of 3