Originally Posted by
Whopity
In the entire history of aviation, nobody has ever sat down and worked out what a pilot needs to know! Regardless of whether it is right or wrong.!
Actually I think this was done by Smith Barry, not saying he got it right, but I think he set down what most instructors use these days and at least it was an advance on what there was before and it is not his fault that this has not been surpassed, rather a credit to how right he got it!