Blueskies wrote:
"cavelamb himself" wrote in message
ink.net...
Blueskies wrote:

"cavelamb himself" wrote in message
ink.net...

Blueskies wrote:

"cavelamb himself" wrote in message
ink.net...


wrote:



Its true that collision energy is proportional to relative speed
squared. But if on landing you don't collide with anything (or flip
over, etc.) you should have a good chance not getting hurt. Just like
cars spinning out of control, they are ok if they don't bump into
anything - roll over, etc.

Loss of control during takeoff is more problematic. There typically
you don't have room to "slide" on the runway but bump into trees,
housing or whatever.


The other important factor is angle of impact...


Actually it is how quickly you stop...

Angle of contact has a big impact on how fast you stop.

Even low velocity at a large angle could hurt.
But a low angle, even at high speed, shouldn't.


Unless there is a tree in the way ;-)
Which changes the impact angle to perpendicular?



Yes, I thought that as I sent...straight up...

;-)


Which, in terms used in physics, is said impact angle was normal to
the surface.

Dan, U.S. Air Force, retired