thread6-342427
One thing we had to do was check the track of the blades in hover, and also in forward flight. Well balanced blades will fly out of track due to airfoil differences. This can be fixed using trim tabs on the trailing edge. But you must have some method of checking track in hover...
Many thanks for your help. I'm still doing arithmetic. (Retired--no longer have access to a machine shop and neat electronic test equipment.)
Cost mechanically: Guesstimate about $300-400.
Been doing calculations using a steady rpm of 60 rev/sec, driving low inertia. On top of this #'s...
You're right !! That's the way I started (being a mechanical type), but thought maybe I could eliminate a couple components if there was some gee-whiz electrical magic.
The cost appears to be cheaper with nuts and bolts than than with electrons flowing from - to + on the battery. (Just kidding!)
That sound promising. Let's see if I can explain a little better: I want to spin a disc at nominal speed, say 1800 rpm. Low drag disc, low hp reqd. Then I want to input to the disc a one per rev torsional oscillation, of which I can control the amplitude. Would desire that the rms of the torque...
I've never studied motors. Is it possible to get a steady rpm, with a variable 1/rev torsional output??
Want to build a bench test setup for testing a mechanical device.
Help !
Steady rpm in the neighborhood of 1500 + or - say 20% or so (not critical). One per rev on the order of 1/3rd hp.
