Maybe I should have dug the file out last post ....
R = KTAS/(62.8 Rate)
R= KTAS squared/(68637 tan(bank))
and, for the base turn geometry
R = distance out tan(included angle/2)
Notes ...
(a) R in nm, turn rate in deg/sec
(b) the numbers will vary very slightly depending on the actual values you insert for the constants but not to any great extent
(c) you can play with the equations to get whatever result you need and, in turn, develop any rules of thumb which might give you some sensory pleasure .....
(d) the derivations are very straightforward if you are really into playing with sketches and elementary mechanics/trigonometry ..... I prepared a set of graphs of all this sort of stuff for a link trainer instructor colleague many years ago and I can email that to anyone who likes pretty pictures .... not a great deal of use, I guess, but some people like that sort of thing ...
(e) while I have tried to avoid any ... if I have made any typos, please do tell me and I will correct the post ...
Last edited by john_tullamarine; 12th Jun 2003 at 17:57.