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Thread: Rate of Turn
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Old 19th Mar 2010, 17:55
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Microburst2002
 
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At 180 kt (GS) with the rule of thumb you already need a 25º bank angle. Many jets fly faster than that during approach procedures. They cannot maintain rate one turns without exceeding 30º bank angles.
In a holding pattern, for instance, a jet rarely makes the turn in a minute.

For turn performance, I use a rule of thumb that I derived from the turn of radius formula. It is approximate, of course:

I find my GS in NM per minute, (always approximately, for instance, for a GS of 264, I use 4 nmpm), I calculate the square of that (in the example 16) then divide by 10 (1,6NM) here.

This would be approximately the radius of turn for a 25º-30º bank angle turn. It works very well for me.
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