reply to post by jprophet420
Yeah....no IVSI, is there?
But, just watching it, there IS a time reference:
13:37:00 --- 2440 feet/300kt
:20 --- 1950 feet/334kt
:30 --- 1425 feet/387kt
:40 --- 524 feet/442kt
:44 --- 180 feet/462kt
NOW...just using those numbers as rough estimates, we get descent rates of, from 13:37:00 to 13:37:20 -- 1,470 fpm
The next ten seconds, rate is 3,150 fpm
Next ten seconds, rate is 5,406 fpm
Last four seconds, works out to 5,106 fpm
Airspeed increasing dramatically, as would be expected.
This is power on, not flight idle.
The clarity of the video is poor, but please try to note the Attitude Indicator, especially the pitch attitude. Just for comparison's sake, in
normal flight, at cruise, it's normal to have about 2 to 3 degrees nose up pitch. At slower speeds, in level flight, it will could be as much as 5
degrees nose up --- it depends on speed, weight and configuration (flaps/slats).
Just watched the vid again...you can see, from 13:36:40, the speed stays fairly constant, the pitch is about 4 or 5 degrees nose down. This would
indicate that the throttles were pulled back, (and I don't mean back to idle, more like about 40-45%) because if they weren't it would have been
accelerating in that turn. After rolling out and lining up on the Pentagon, the nose is pushed down, but power must be increasing as well, because of
the speed increase.
Notice, also, in the turn...times when altitude is level, and the pitch attitude.
I'd like to see an accompanying engine display for this video.....
[edit on 18 July 2009 by weedwhacker]