An operator shall ensure that the approved performance data contained in the aeroplane flight manual is used to determine compliance with the requirements of the appropriate subpart
Folks,
The landing field length from the AFM will be certified data, ie; it has been factored. This is the landing field length for all but emergency operations.
Basing any of your operation on "raw" test flight numbers has no place in any commercial operation. Likewise, "tricky" interpretations of rules by bush lawyers has no place.
It is highly unlikely that the average pilot, in the average aeroplane, would even get close to the raw (unfactored) field lengths achieved during certification test flying.
Assuming the above quote is correct, I would have thought that would settle the argument.
Tootle pip!!
PS: FokkerJock,
Is that intended to be a definition of how test flight landing field lengths are established --- it's a new one on me.