Originally Posted by
Musket90
Whoever calculated the ASDA distance to be less than TORA is wrong. ASDA value is either equal to TORA (when no stopway provided) or more (when stopway is provided).
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Not according to the FAA AIM. Witness
this diagram. Note the figures for rwy 09 and associated explanation. ASDA can be shorter than TORA if part of the runway has to be "used up" to satisfy one or more design requirements.