If you're flying the LNAV only or circling, remember that if you reach the MAP at RW32 you're over the displaced threshold
, not the beginning of the pavement.
Not quite sure what point you're trying to make about the displaced threshold
; all the numbers have to do with the actual usable threshold, not the pavement that happens to exist before that, so the displaced threshold
shouldn't matter to the previous discussion.
According to the NTSB's POH calculations, the airplane should have easily taken off and climbed out at its gross weight, with almost half the runway to spare (more, if the 190-foot distance from the displaced threshold
to the trees is considered.
You'll know a displaced threshold
exists from a few sources.
If you watched the film of 16R, you may remember the cinematically convenient displaced threshold
that seems to truck on forever before actual runway numbers appear and invite the camera to land.
The airport manager said the airplane began its takeoff on the 2500-foot-long Runway 13 from the displaced threshold
, which is 400 feet from the approach end of the runway.
Two more warning signs are the fact that there is a displaced threshold
for Runway 22 and that the missed approach for Runway 4 requires a nonstandard climb gradient.
Approaching a major airport, you note that the total runway length is 6,000 feet, with a 500 foot displaced threshold
on the end you plan to use.
This is true for this procedure, because the airport diagram doesn't indicate a displaced threshold
. Therefore the available landing distance is the physical runway distance shown on the airport diagram.
Determining the kind of displaced threshold
requires some digging.