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Search: Posts Made By: Feathers McGraw
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Forum: Rumours & News
6th Mar 2009, 22:49
Replies: 2,906
Views: 1,450,507
Posted By Feathers McGraw

Very interesting reading Safta's comments about...

Very interesting reading Safta's comments about the 737-300 SIM.

Now since he mentioned the way that the trim operated, gradually speeding up as the AP tried to follow the GS, the trim wheel would...
Forum: Rumours & News
4th Mar 2009, 16:12
Replies: 2,906
Views: 1,450,507
Posted By Feathers McGraw

Northbeach The statement that after the A/T...

Northbeach

The statement that after the A/T power reduction, caused by the radalt altitude change, the ensuing audible message was apparently not perceived as a problem (the crew were about to...
Forum: Rumours & News
4th Mar 2009, 13:43
Replies: 2,906
Views: 1,450,507
Posted By Feathers McGraw

OK, thanks for that. Is there any kind of...

OK, thanks for that.

Is there any kind of cross checking between radar altitude and pressure altitude? That would provide a way of knowing which of a pair of disagreeing radalts was correct.
Forum: Rumours & News
4th Mar 2009, 13:39
Replies: 2,906
Views: 1,450,507
Posted By Feathers McGraw

Can any radalt ever correctly indicate -8 feet? I...

Can any radalt ever correctly indicate -8 feet? I would expect it to read 0ft with wheels on the ground, so a negative reading implies an error if not a detected failure.
Forum: Rumours & News
4th Mar 2009, 12:28
Replies: 2,906
Views: 1,450,507
Posted By Feathers McGraw

If the A/T is in retard mode, was this *because*...

If the A/T is in retard mode, was this *because* it was taking the failed left radalt as its height input?

What inputs does the A/T normally use? Presumably having two radalts that disagree means...
Forum: Rumours & News
27th Feb 2009, 13:12
Replies: 2,906
Views: 1,450,507
Posted By Feathers McGraw

If full thrust was applied at impact, could the...

If full thrust was applied at impact, could the 'give' in the mud on the ground be enough to cushion the engines and avoid tip contact with the fan case? The fan blades look pretty much intact which...
Forum: Rumours & News
26th Feb 2009, 22:34
Replies: 2,906
Views: 1,450,507
Posted By Feathers McGraw

Rainboe Would it not require deliberate fuel...

Rainboe

Would it not require deliberate fuel system adjustment not to drain fuel from the centre tank first? I thought all Boeing designs have higher pump output pressure from the centre tank?
Forum: Rumours & News
26th Feb 2009, 12:40
Replies: 2,906
Views: 1,450,507
Posted By Feathers McGraw

Dani I don't claim that the transponder...

Dani

I don't claim that the transponder transmissions tell us anything definitive, but I would expect that the aircraft's GPS receiver(s) would have an update rate of 10Hz for both position and...
Forum: Rumours & News
25th Feb 2009, 23:02
Replies: 2,906
Views: 1,450,507
Posted By Feathers McGraw

Wiggy It would be pretty close, but of...

Wiggy

It would be pretty close, but of course not timestamped as you would get from the DFDR or QAR. The 88kts would have come from the GPS receiver, so turning GS into IAS/TAS needs the wind...
Forum: Rumours & News
25th Feb 2009, 22:52
Replies: 2,906
Views: 1,450,507
Posted By Feathers McGraw

Guppiebugs 88kts GS was the final recorded...

Guppiebugs

88kts GS was the final recorded value in the software log from a guy with a Radarbox Mode-S receiver who is fairly near EHAM, and has coverage of aircraft on the ground there so would...
Forum: Rumours & News
25th Feb 2009, 22:39
Replies: 2,906
Views: 1,450,507
Posted By Feathers McGraw

OK, so the 88kts GS, 420ft and a last recorded...

OK, so the 88kts GS, 420ft and a last recorded position N52 22.8 E004 42.8 (right where the impact occurred) I saw elsewhere would fit in as being consistent with that stall speed, IOW below it by...
Forum: Rumours & News
25th Feb 2009, 22:27
Replies: 2,906
Views: 1,450,507
Posted By Feathers McGraw

In the configuration the aircraft was in, could...

In the configuration the aircraft was in, could someone with appropriate knowledge say what the stall speed would be?
Forum: Rumours & News
25th Feb 2009, 14:10
Replies: 2,906
Views: 1,450,507
Posted By Feathers McGraw

Worth pointing out that ADS-B equipped aircraft...

Worth pointing out that ADS-B equipped aircraft transmit extended Mode-S squitters that are not contingent on Mode-S interrogation, so you can easily get position and other data broadcast at more...
Forum: Rumours & News
25th Feb 2009, 10:50
Replies: 2,906
Views: 1,450,507
Posted By Feathers McGraw

Well, a fire requires a rupture of tanks/fuel...

Well, a fire requires a rupture of tanks/fuel lines and a source of ignition.

The hot engines appear to have detached, so are far from any leaking fuel, and the wings seem to be fairly intact, so...
Showing results 1 to 14 of 14


 
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