![]() |
If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#19
|
|||
|
|||
![]()
On Apr 21, 8:41*am, Chris Reed wrote:
A pilot flying at the UK Juniors a few years ago described a racing finish in a K8, producing no more than a 200 ft climb from a 90kt pull-up. He said that a K8 in this mode was the ultimate efficient machine "for converting height into noise". Disregarding drag, the formula to convert speed in knots to the height in feet with equivalent energy is speed squared, divided by 22.57. It will take this much height, plus a bit more, to accelerate to that speed, and on slowing down you will get that much height, less a bit. For 90 knots this is 359 ft. At, say, 50 knots, it is 111 feet. So you'd expect only 248 ft gain even with no drag at all. |
Thread Tools | |
Display Modes | |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
Physics Quiz Question | Dallas | Piloting | 28 | August 14th 07 02:02 AM |
Pull up a chair and hear me out: | Vaughn | Aviation Marketplace | 0 | February 2nd 06 02:04 AM |
Physics question | Rich S. | Home Built | 62 | September 14th 05 02:05 PM |
Question about center-line push-pull engine configuration | Shin Gou | Home Built | 4 | June 7th 04 05:57 PM |
Glider pull-up and ballast | M B | Soaring | 0 | September 15th 03 06:29 PM |