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#1
July 11th 07, 11:05 PM
posted to rec.aviation.homebuilt
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Survivability VS landing speed
"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 othe important facetor is angle of impact... Actually it is how quickly you stop... 
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#2
July 11th 07, 11:29 PM
posted to rec.aviation.homebuilt
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Survivability VS landing speed
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.
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#3
July 11th 07, 11:45 PM
posted to rec.aviation.homebuilt
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Survivability VS landing speed
"cavelamb himself" wrote Even low velocity at a large angle could hurt. But a low angle, even at high speed, shouldn't. Think the opening clip of "The Six Million Dollar Man." Except now, he would be the 27.9 million dollar man. -- Jim in NC
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#4
July 12th 07, 12:56 AM
posted to rec.aviation.homebuilt
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Survivability VS landing speed
"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 ;-)
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#5
July 12th 07, 02:14 AM
posted to rec.aviation.homebuilt
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Survivability VS landing speed
Blueskies wrote:
"cavelamb himself" wrote in message ink.net... Blueskies wrote: "cavelamb himself" wrote in message thlink.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?
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#6
July 13th 07, 01:11 AM
posted to rec.aviation.homebuilt
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Survivability VS landing speed
"cavelamb himself" wrote in message ink.net... Blueskies wrote: "cavelamb himself" wrote in message ink.net... Blueskies wrote: "cavelamb himself" wrote in message rthlink.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... ;-)
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#8
July 14th 07, 01:44 PM
posted to rec.aviation.homebuilt
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Survivability VS landing speed
"Dan" wrote in message ... 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 So, my really bad landings are normal? ;-)
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