New Type Gyro Plane Tested on Electric Rail Carriage (Jan, 1932)

New Type Gyro Plane Tested on Electric Rail Carriage

AS interesting as is the new type of gyro plane now undergoing exhaustive experiments in France, the method of testing is perhaps of even more interest.

The trial carriage is electrically driven and attains a speed of from 60 to 80 miles an hour on rails. By means of measuring instruments on the carriage, the wind pressure, lifting power, derivation of lift, and the stresses on various parts are registered.

The plane itself is of the conventional type, except for a pair of large propellers, which turn in opposite directions, mounted on a stub shaft above the plane. These propellers work by wind pressure.

10 comments
  1. rick says: December 2, 20093:27 pm

    I’m still waiting for my autogyro. When are they ever going to finish testing these things?

    Rick

  2. Firebrand38 says: December 2, 20094:11 pm
  3. rick says: December 2, 20096:34 pm

    Thanks, Firebrand,

    Interesting stuff. I particularly like the comment from http://www.littlewingau… :

    “A zero airspeed, vertical landing is survivable for the occupant but not for the aircraft.”

    Hmmm. Not too reassuring. ;-)

    Rick

  4. Firebrand38 says: December 2, 20097:41 pm

    rick: I don’t see why not, when a modern car crashes the occupants are supposed to survive but the car isn’t guaranteed to be drivable afterward, now is it?
    Hmmmm?

  5. Firebrand38 says: December 2, 200911:17 pm

    I mean, if you prefer you can search for one that says “A zero airspeed, vertical landing is survivable for the aircraft but not for the occupant.” Reassured now? Hmmm?

  6. Repack Rider says: December 2, 200911:17 pm

    If only the Wright Brothers had invented the wind tunnel also.

    Wait. They did.

  7. Toronto says: December 3, 200912:45 am

    I don’t think the Wright’s wind tunnel had much in the way of measuring stresses on various parts. It mostly measured vertical forces at various points on a model and at different airspeeds.

  8. Firebrand38 says: December 3, 20091:18 am

    Repack Rider: The use of a track to test aerodynamics is still in use today at places like Holloman AFB, NM & Sandia Labs http://www.sandia.gov/v… if only they had wind tunnels. That’s right, they do.

    Some things are measured better outside a wind tunnel as described in this pdf from 1968 http://handle.dtic.mil/… (by the way, they had wind tunnels in 1968 too).

  9. Jari says: December 3, 20091:06 pm

    And here’s the plane actually flying: http://scale-autogiro.s…!4A9F23F99E6A9956!1017.entry

    I the main page http://scale-autogiro.s… there’s a lot of theory about autogyros, scale modelling, etc. in French.

  10. Tracy B says: December 3, 20093:46 pm

    Well you only live twice…..

    Thank you James Bond

    http://en.wikipedia.org…

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