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MAx Rate Turns
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15th June 2003 | 15:10
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DB6
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From:
Glen Prosen, Scotland
If you think about it, you need two things for a turn at max. rate:1) max. lift and 2) max. AoB to put that lift to use in the direction you want. Now lift=1/2 rho Vsquared S (stop that cold sweating at the back!); S is fixed unless you have fancy gadgets on your wings, rho decreases with height so you will get faster turn rates lower down, and v depends on your power - use full power. The technique for flying an MRT is as BEagle describes but it is important to note the subtle difference in control technique; you are using elevators to control the angle of attack - to stay on the buffet (NB not just the stall warner) so you cannot use them to control attitude. That is done using the ailerons to control AoB to raise or lower the nose. Note now that as the nose rises speed will decrease so less back pressure is required to maintain the buffet, conversely in the descent. You should still be using a Lookout-Attitude-Instrument scan but the only instruments that are of use are the altimeter/vsi and balance ball and the lookout will be directed through the top of the canopy (Cessna drivers stretch your necks). Also note that when you roll out your initial level flight attitude will be that for the speed at which the turn has stablised, not necessarily the same speed as at entry.
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DB6
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