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Search: Posts Made By: Mad (Flt) Scientist
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Forum: Tech Log
13th Jan 2015, 17:58
Replies: 125
Views: 32,205

XL Airways A320, 2 of 3 AOA sensors froze.

XL Airways A320, 2 of 3 AOA sensors froze.
Forum: Tech Log
10th Jan 2015, 21:16
Replies: 125
Views: 32,205

Yes, you can. In fact there a whole bunch of ADs...

Yes, you can. In fact there a whole bunch of ADs out thee regarding exactly that (at least one of the airbus ADs has an active thread I think)

What you do gain is having a (slightly) different...
Forum: Tech Log
4th Jul 2009, 23:01
Replies: 125
Views: 32,205

It's an Angle-of-Attack based display; it...

It's an Angle-of-Attack based display; it basically has a green (target) range of AOA that you are supposed to fly in, with the low and high ends being red "no go" areas representing overspeed (low...
Forum: Tech Log
1st Jul 2009, 17:19
Replies: 125
Views: 32,205

Requires a very good understanding of the hinge...

Requires a very good understanding of the hinge moments at small deflections. Not a trivial thing to do, since it also varies with other conditions. Doing something similar (but with known AS in...
Forum: Tech Log
1st Jul 2009, 07:12
Replies: 125
Views: 32,205

Stealth AC in general have flush mounted sensors,...

Stealth AC in general have flush mounted sensors, AFAIK.

Those on the B-2, handled incorrectly with regard to the anti-ice system, caused the loss of the B-2 in Guam (?) IIRC so those systems are...
Forum: Tech Log
23rd Jun 2009, 16:59
Replies: 125
Views: 32,205

In industry terms, it isn't "only Airbus". ...

In industry terms, it isn't "only Airbus".

EASA Safety Information Bulletin 2009-17, issued June 09, contains "recommendations" to operators regarding unreliable airspeed procedures and the...
Forum: Tech Log
23rd Jun 2009, 11:59
Replies: 125
Views: 32,205

No. Although the dynamic pressure is 4 times...

No. Although the dynamic pressure is 4 times greater at 200knots compared to 100 knots, the wing loading is actually the same. Because the wing is supporting the same aircraft weight, and THAT is...
Forum: Tech Log
23rd Jun 2009, 04:33
Replies: 125
Views: 32,205

You can't deduce airspeed from the data you are...

You can't deduce airspeed from the data you are suggesting, though.

At least, not with any expectation of accuracy.

A wing flexes the same under load to support the same weight, independent of...
Forum: Tech Log
23rd Jun 2009, 03:40
Replies: 125
Views: 32,205

Are you seriously suggesting to try to back out...

Are you seriously suggesting to try to back out the external wing loading from FEM type measurements within the structure? That would require a degree of accuracy that simply does not exist, and may...
Forum: Tech Log
12th Jun 2009, 02:21
Replies: 125
Views: 32,205

Chance are that any attempt to blow a blockage...

Chance are that any attempt to blow a blockage off the probe would destroy the sensing device long before it managed to clear all but the smallest blockage. After all, it's the overpressure in the...
Forum: Tech Log
10th Jun 2009, 01:21
Replies: 125
Views: 32,205

Afraid you've misunderstood me. My point is...

Afraid you've misunderstood me.

My point is that VMO and MMO are, as you say fixed absolute speeds.

But if I'm flying on AOA I don't know my speed, just my AOA.

Lets say I'm actually right...
Forum: Tech Log
10th Jun 2009, 00:41
Replies: 125
Views: 32,205

It's one thing for a back-up to rely on AOA....

It's one thing for a back-up to rely on AOA. You've already got system degradation and you're now in the "continued Safe Flight and Landing" element of certification, where the assumption is that...
Forum: Tech Log
10th Jun 2009, 00:20
Replies: 125
Views: 32,205

Of course those ice up too, if things aren't...

Of course those ice up too, if things aren't going well. And it's hard to provide accurate airspeed to AOA relationships at high speed, because the change in AOA for even moderate speed changes is...
Showing results 1 to 13 of 13


 
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