Lynx aerobatics

[red750]

[No message]

[facthunter]

Seen that B4, Still scares me. How close is that thing to destruction if his timing is out by just a little? Nev

 

 

[red750]

It's the loop from zero forward speed that gets me. At 36 seconds, the clouds behind are not moving when he pulls it through the back flip. And again at 1:45.

 

 

[dazza 38]

It's the loop from zero forward speed that gets me. At 36 seconds, the clouds behind are not moving when he pulls it through the back flip. And again at 1:45.

Its a helicopter.

[Birdseye]

It's all in the rigid rotor head.

 

 

[mnewbery]

The rotor head has a TBR of about 25 hours I think

 

 

[Birdseye]

Some LSA motors are not much more

 

 

[Soleair]

That ain't natural. . . but great flying.

 

 

[Marty_d]

Helicopters aren't natural! "Big noisy palm trees" as a mate of mine who used to work on Navy Squirrels calls them.

 

 

[facthunter]

Crazy Palm Tree was a common term. Some seeds imitate them and have a rotor. No bird species I know of has tried it and they know a lot about flying. Nev

 

 

[Marty_d]

I sit and watch the bees going in and out of the hive sometimes, they're more like choppers than planes (and yes I know their wings flap instead of rotate.)

 

Incredible really, thousands of "aircraft" movements per hour from a runway just higher than them, and not one collision...

 

 

[facthunter]

Have look how a dragonfly fly's. I haven't a reference but I'm sure it's around. A jumbo sized bumblebee wouldn't get off the ground , experts say due to scale effect (Reynold's Number)..Nev

 

 

[Kiwi303]

Have look how a dragonfly fly's. I haven't a reference but I'm sure it's around. A jumbo sized bumblebee wouldn't get off the ground , experts say due to scale effect (Reynold's Number)..Nev

But they never realised bumblebees have it both ways, their wings work both coming and going. One way only in a circular movement like a bird wouldn't give them enough specific impulse, came the days of high speed photography and the light dawned, Bumbles use a figure 8 stroke with canting wings and obtain lift on both be backwards and forwards stroke.

 

It's a bit like the case of the Kangaroo not being able to eat enough in a day to fuel moving their weight around in big jumps. The early Natural Philosophers left out the effect of the main hamstring tendon. Lift a bag of spuds of the floor and put it down, repeat... Lots of energy. Put a spring on the bottom and lift it and bounce it. First lift, more energy, following bounces require less. Kangaroos cheat physics by building in their own springs, hence the problem with the old figures of where the Kangaroo got it's mysterious ability to obtain energy from nowhere from.

 

 

[facthunter]

Kangaroo bones must be made of heat treated EN26. They go through anything when you run over them. The dragon fly can fly in any direction. A slow motion pic of them flying is incredible. They also fly when copulating so that's clever. Nev

 

 

[Marty_d]

They also fly when copulating so that's clever. Nev

So did a mate of mine on an Aeroflot flight in the 80's, with one of the stewardesses. More lucky than clever in his case I think.