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Old 19th August 2006, 12:04 AM   #76
gumboot's Avatar
Join Date: Jun 2006
Posts: 25,327
Originally Posted by MarkyX View Post
And anything from a missile expert if it did hit Flight 93.

We can rule out a heat-seeking missile...

According to the FDR from UA93, both engines were running normally (and attached to the plane) at 70% thrust at the moment of impact.

The NTSB FDR report for UA93 is here.

For laymen, someone on a professional pilot's forum has provided the key specs at impact here.

According to the Flight Data Recorder from UA93, it impacted the ground at about 500kts (575 MPH) in a 40 degree nose down attitude, with a 150 degree roll angle to starboard.

A few observations from the FDR data at IMPACT;

1. Cabin pressure - NORMAL
2. Hydraulics - NORMAL
3. Cargo fire - NORMAL
4. Smoke - NORMAL
5. Engines - RUNNING
6. Engine RPM (N1) 70%
7. Fuel pressure - NORMAL
8. Engine vibration - LO

9. Wind direction - WEST
10. Wind speed - 25 kts

11. Pitch angle - 40 deg down
12. Airspeed - 500 kts
13. Heading - 180 deg
14. Roll angle - 150 deg right
15. AoA - 20 deg negative

O xein', angellein Lakedaimoniois hoti têde
keimetha tois keinon rhémasi peithomenoi.

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