Author Topic: Explain this me.... (Read 834 times)

hawker238 · « **on:** December 20, 2003, 11:11:40 PM »

Even at a hypothetical level, it is beyond me how this thing flies. Any insight?

http://www.luft46.com/dsart/ds500.html

GScholz · « **Reply #1 on:** December 20, 2003, 11:18:10 PM »

Like a helicopter, but I don't see any way to cancel the rotor torque.

Wilbus · « **Reply #2 on:** December 21, 2003, 03:29:47 AM »

Rotor torque may not be canceled if the pilot is sitting in some kind of non rotating middle part. Sort of a ring inside the rotating ring.

frank3 · « **Reply #3 on:** December 21, 2003, 04:45:44 AM »

Wouldn't the pilot get dizzy?

Innominate · « **Reply #4 on:** December 21, 2003, 04:50:13 AM »

It'd have to be a gyrocopter.
Possibly with much the same idea behind it as the carter copter.

capt. apathy · « **Reply #5 on:** December 21, 2003, 05:23:21 AM »

or 2 sets of blades, rotating in oposite directions.

kind of like the old
'egg-beater' chopper that didn't have a tail rotor

(or is that what you meant by 'carter-copter'?)

Wilbus · « **Reply #6 on:** December 21, 2003, 05:23:34 AM »

Not if the middle part of the "thing" doesn't rotate frank

frank3 · « **Reply #7 on:** December 21, 2003, 05:42:16 AM »

Quote

Originally posted by Wilbus
Not if the middle part of the "thing" doesn't rotate frank

(I noticed)

AmRaaM · « **Reply #8 on:** December 21, 2003, 09:47:42 PM »

i saw one fly at an airshow,,,,, i think it was on Neptune, ya know Neptune in the winter is really quite nice. It was doing fountain maneuver with i think a ..ummm Klingon battle cruiser.

Raptor · « **Reply #9 on:** December 21, 2003, 10:33:47 PM »

on the websight that picture shows them around a B-29. If they were built by wars end would it have been able to keep up with the bomber? Even by todays standards 200 is fast for a helicoptor.

GScholz · « **Reply #10 on:** December 22, 2003, 03:23:34 AM »

It's fictional, not a real German project.

Kommandant · « **Reply #11 on:** December 22, 2003, 03:57:09 PM »

This is actually a quite advanced design I have seen from DiVinchi and other flight Designers.

How it works is where the pilot is sits stationary. The Blades rotate like that of a helicopter and by turning the blades slightly you can vector the thrust so you can go forewards, reversed, side to side, up, and down. You could even roll the aircraft.

Now it will work if you can get the right powerplant and torque for it, however the problem being the central fuselage might spin uncontrollably.

Still, I would fly one in a heartbeat.

hawker238 · « **Reply #12 on:** December 22, 2003, 07:51:58 PM »

From the picture, it seems like the disc is using rockets to maintain the rotation around the stable cockpit. The blades must follow some kind of path that only lets them create forward movement lift (angles and such). The only problem is tremendous torque.... Maybe there was a constant rocket firing in a set counter direction?

I'm not sure if this is even a valid Luftwaffe/Nazi theoretical design. It just piqued my curiousity....

Arlo · « **Reply #13 on:** December 22, 2003, 07:58:57 PM »

The funniest part:

"This could conceivable
saw enemy bombers!" [/color][/i][/b]

Innominate · « **Reply #14 on:** December 22, 2003, 09:43:03 PM »

Why waste engine thrust countering torque?

Spin up the blades on the ground, remove power from them, use the stored energy to take off vertically without power. Fire up the jet engine and convert to flight as an autogyro.

A design like that operated as a helicopter seems dicey to me. An autogyro seems like a more realistic and better performing choice.