jb747
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- Mar 9, 2010
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Lots of information here...Banked turn - Wikipedia, the free encyclopedia and here..http://www.csgnetwork.com/aircraftturninfocalc.htmlWhat is the radius/diameter of a hard turn in the A380 and how does this compare to a normal turn? Do weight and speed have much impact?
Thanks.
To calculate an answer, you need to know the stall speed, and that varies with weight. Otherwise your only inputs are true airspeed (which in itself takes care of temperature and altitude variables) and bank angle.
The stall speed is only needed to find the minimum radius. For instance if the stall speed is 115 knots, then I can't turn the aircraft at all if I'm at exactly 115 knots. The stall speed increases in turns. In a 60 degree banked level turn, you'd have exactly 2g and the stall speed would rise by a factor of 1.4 (square root of 2).
If one aircraft can fly slower than another, its minimum radius will be less. Once away from the minimum, all aircraft have identical results for a given bank and TAS.
Turns in an airliner don't exceed 30˚ of bank. The flight control system limit is 66˚ in the AB, at which point you'll have 2.5g.
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