A whole new ball game.

[martin-w 3,235]

Defiant is looking very capable. 

 

 

[martin-w 3,235]

But is it as capable as one of these.. Defies the laws of physics but I love it. 

😁

 

 

Edited January 27, 2022 by martin-w

[HiFlyer 9,359]

More like defies the laws of practicality....

[n4gix 4,947]

3 hours ago, HiFlyer said:

More like defies the laws of practicality....

Didn't someone try this back in the late 1800's or early 1900's? No mechanism can possibly 'beat' the 'wings' fast enough as I recall.

[HiFlyer 9,359]

11 minutes ago, n4gix said:

Didn't someone try this back in the late 1800's or early 1900's? No mechanism can possibly 'beat' the 'wings' fast enough as I recall.

Maybe I'm spoiled by the fact of playing with lots of working toy ornithopters as a kid.

Plus I remember Snowbird, so my assumption has been that its probably possible but not really practical.

 

[188AHC 2,138]

Reminds me of the Comanche that never made production. 

 

[martin-w 3,235]

14 hours ago, HiFlyer said:

Maybe I'm spoiled by the fact of playing with lots of working toy ornithopters as a kid.

 

That ornithopter isn't how the Dune Ornithopter functions though. The Dune Ornithopter doesn't have flexible wings, they don't flap, they merely vibrate. Every action has an equal and opposite reaction, so my contention is that even with super advanced technology to vibrate at super high frequency, it still couldn't fly because there would be no positive lift.

 

[HiFlyer 9,359]

If that's the explanation then no, probably it wouldn't work. My impression was not that they were vibrating. I thought that they were flapping at such a high rate of speed that they appeared to blur.

(Hummingbird wings, or like a Dragonfly)

Edited January 28, 2022 by HiFlyer

[martin-w 3,235]

11 hours ago, 188AHC said:

Reminds me of the Comanche that never made production. 

 

 

 

Unlike the Comanche this guy has a pusher prop of course for high speed cruise. 

 

The Comanche was quite a machine, very manoeuvrable and with an accompanying engine sound that was almost a scream. Weird! 

 

 

Edited January 28, 2022 by martin-w

[martin-w 3,235]

6 minutes ago, HiFlyer said:

If that's the explanation then no, probably it wouldn't work. My impression was not that they were vibrating. I thought that they were flapping at such a high rate of speed that they appeared to blur.

(Hummingbird wings, or like a Dragonfly)

 

Hmm... didn't look like it to me. Maybe though. 

They would also have to change angle on the upward strike I reckon. 

Edited January 28, 2022 by martin-w

[birdguy 3,943]

The Air Force had something smiliar in the old days as I recall.  The Kaman HH-43 Husky

Noel

[martin-w 3,235]

On 1/28/2022 at 8:44 PM, birdguy said:

The Air Force had something smiliar in the old days as I recall.  The Kaman HH-43 Husky

Noel

 

So did the Russians. 

 

 

Its not a new concept. The pusher at the back is though and was based on the Bell X2 concept.

 

 

 

Then we have the Airbus X3 which I love.

 

 

[goates 576]

45 minutes ago, martin-w said:

Its not a new concept. The pusher at the back is though and was based on the Bell X2 concept.

The pusher prop idea has been around for a while.

https://en.wikipedia.org/wiki/Lockheed_AH-56_Cheyenne

Edited February 1, 2022 by goates

[birdguy 3,943]

59 minutes ago, martin-w said:

 

So did the Russians. 

Most of these helicopters have the twin rotors ont on top and on on the bottom.

But the Kaman had twin rotors next to each other but slightly tilted so the rotors interwove with each other when they were spinning.

The ones I saw at US Air Bases had foam fire suppression equipment hung below them to put out crash fires from above.

Have there been any other helicopters that had interwoven rotors??

Noel

[martin-w 3,235]

4 minutes ago, birdguy said:

But the Kaman had twin rotors next to each other but slightly tilted so the rotors interwove with each other when they were spinning.

 

I know, so not like the Defiant. The Russian helicopter and the X2 are like the Defiant.