Old Performance Charts, still valid ?
Has anyone had any luck finding out if the old departmant style take-off and landing performance charts can still be used in GA.
From what I can find it is a very grey area still and the regs don't really make it very clear CAO 20.7.4, 6.1 to 6.3 and 10.1 to 10.3
If you can't use them then what do you use for say long grass etc.
And if you can use them where to you put them, you can't put them in the POH, so does CASA issue a new approval and put them in your OP's manual ?
Currently looking regarding b55 b58 c310