Turns
This is not a PPL turn! The figure is indeed a level turn, however in this case it must not be flown with with the usual "co-ordinated" roll-and-yaw. Here we want a crisply started initial partial roll to establish a bank angle of at least 60 degrees without any change in heading, then immediately a constant rate turn for the whole heading change with no variation in bank angle, to a stop on heading whilst still rolled that instantly precedes a balancing partial roll to return to level flight. Think of the jerky actions of a mime artist - that's the style we want.
Roll into the turn:
- Start from level flight on heading
- Roll briskly to at least 60° with no heading change, ie. just like the first 60° of a slow roll.
- The aeroplane CGT should remain level throughout the roll
Turn:
- Constant bank angle
- Constant rate of turn
- Maintain level (altitude)
- Stop on heading
Roll out:
- Roll briskly back to wings-level flight
- No change in heading!
- Constant roll rate
- The rate of roll in and out of the turn should be even
What is not judged:
- The shape of the turn, this is not a wind corrected figure
- The size of the turn
Practical Tips:
- Check that the heading is correct at the start of the turn
- Be careful of optical effects – the aeroplane will look as if it is climbing when it's coming towards you and descending when it is going away from you (CHECK).
- Think about the direction turned – it matters if the figure is onto the "A" axis.
- Look for 'crabbing' at the end of the turn, ie. sliding sideways with off-angle CGT although the ZLA remains correct. The aeroplane should be 'square' to the box and flying directly along the correct axis.
Judging topics: Rules (2/2) Judging topics: Rolling Turns (1/2)