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Search: Posts Made By: typhoid
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Forum: Rumours & News
28th Sep 2015, 02:15
Replies: 30
Views: 26,753
Posted By typhoid

To certify the CDL for missing winglets, the OEM...

To certify the CDL for missing winglets, the OEM has to flight test the configuration.

To save cash for an option no one want to pay for, typically only 1 winglet removed is tested. If an airline...
Forum: Rumours & News
10th Sep 2015, 10:58
Replies: 746
Views: 788,423
Posted By typhoid

Modern thrust reversers only reverse the bypass...

Modern thrust reversers only reverse the bypass air, not the core flow. i.e. cold air that has not been used in combustion. This was not the case on the v low bypass 737 engine at MAN.
Forum: Flight Testing
24th Jul 2013, 02:02
Replies: 5
Views: 3,486
Posted By typhoid

If you are looking for a credible Flight Test job...

If you are looking for a credible Flight Test job that is in the UK, or does not require you to speak French or German, then you may be searching for a long time if you exclude the US and Canada.
Forum: Tech Log
30th May 2013, 00:58
Replies: 33
Views: 13,038
Posted By typhoid

We do this quite often in heavy aircraft flight...

We do this quite often in heavy aircraft flight test when landing above the brake energy limit, on a long runway, and have no desire to activate the fuse plugs.

The trick is:

Touchdown
Deploy...
Forum: Tech Log
6th Feb 2013, 09:19
Replies: 1,100
Views: 261,680
Posted By typhoid

The Canadian regs require cert to -40c. The FAA...

The Canadian regs require cert to -40c. The FAA do not.

Plus you can do the cert test and remove the battery during cold soak, only refitting just before you power up. But this should be SOP for...
Forum: Tech Log
26th Oct 2012, 21:26
Replies: 34
Views: 7,189
Posted By typhoid

As has been said, retraction braking on a fixed...

As has been said, retraction braking on a fixed gear aircraft just makes you feel more in control, but has no engineering reason behind it.

On transport category aircraft, most type have a feature...
Forum: Rumours & News
18th May 2012, 01:10
Replies: 456
Views: 211,219
Posted By typhoid

My understanding is that both Boeing and Airbus...

My understanding is that both Boeing and Airbus worked together to produce upset recovery procedures that are standard across the industry.

That is why they are the same.
Forum: Flight Testing
24th Dec 2011, 02:36
Replies: 16
Views: 7,510
Posted By typhoid

Bear, I suspect we have done business (and...

Bear,

I suspect we have done business (and much coffee) together in the UK and some fairly grotty places. Hope all is well and your smart colleages are behaving!

Say hi from me to them, the...
Forum: Flight Testing
23rd Dec 2011, 01:23
Replies: 16
Views: 7,510
Posted By typhoid

Hi Jonas, I am going to be a bit less...

Hi Jonas,

I am going to be a bit less positive. Given your lack of Engineering degree, limited aviation experience and no prior knowledge of aircraft testing, I would think it highly highly...
Forum: Flight Testing
18th Jan 2011, 06:49
Replies: 3
Views: 923
Posted By typhoid

Thanks Gengis. Do not fear, we won't be in...

Thanks Gengis. Do not fear, we won't be in competition with you :ok:

Thanks for the help previously too, but sometimes the industry can move quicker than you can act..
Forum: Flight Testing
17th Jan 2011, 20:16
Replies: 3
Views: 923
Posted By typhoid

How long for CS23 flight trials in the UK

Hi fellow Flight Testers

As an ex-heavy aircraft flight test person (CS25) I've regrettably moved out of flight test in to the world of paper engineering - in particular, light aircraft (CS23).
...
Forum: Biz Jets, Ag Flying, GA etc.
11th Dec 2010, 21:13
Replies: 46
Views: 16,032
Posted By typhoid

and discuss.... Air Accidents Investigation:...

and discuss....

Air Accidents Investigation: Falcon 2000, CS-DFE (http://www.aaib.gov.uk/publications/bulletins/december_2010/falcon_2000__cs_dfe.cfm)
Forum: Tech Log
30th Oct 2010, 17:04
Replies: 10
Views: 2,998
Posted By typhoid

As not likely with three independent systems. ...

As not likely with three independent systems.

It would be called common mode failure, for which the system will be designed against and the safety case would support.

We do quite a lot of...
Forum: Tech Log
30th Oct 2010, 17:02
Replies: 26
Views: 15,242
Posted By typhoid

Perhaps I'm missing something here. A RAT is only...

Perhaps I'm missing something here. A RAT is only needed in the event ALL engines stop turning - ETOPS or not.

So requiring the APU because you don't have a RAT does not make sense. Because RAT or...
Forum: Tech Log
27th Oct 2010, 20:49
Replies: 60
Views: 27,747
Posted By typhoid

Hot steel brakes seizing - likely. Carbon brakes?...

Hot steel brakes seizing - likely. Carbon brakes? No way.

There is no technical reason why a carbon brake aircraft should not use the PB on the runway. Modern park brakes are a switch ON/OFF with...
Forum: Flight Testing
15th May 2010, 21:00
Replies: 9
Views: 2,055
Posted By typhoid

McAero we regularly use laptops on our dev fleet....

McAero we regularly use laptops on our dev fleet.

We fit them via our FTI team for specific trials work such as EGPWS and environmental.

Those with raised eyes need to get out more :-)
Forum: Flight Testing
8th May 2010, 08:17
Replies: 14
Views: 3,303
Posted By typhoid

This is true but the moment arm of the rudder...

This is true but the moment arm of the rudder (which provides the path recovery force) is at it's smallest at aft cg.
Forum: Military Aviation
10th Oct 2009, 21:07
Replies: 3
Views: 2,350
Posted By typhoid

It was there through September too whilst we were...

It was there through September too whilst we were there.

Not sure whose it is though
Forum: Tech Log
29th Jun 2009, 16:44
Replies: 21
Views: 8,314
Posted By typhoid

Could you not just run the LH and RH AC pumps...

Could you not just run the LH and RH AC pumps with the x-feed open from the start so it burns symmetrically?
Forum: Flight Testing
14th Apr 2009, 22:25
Replies: 42
Views: 9,921
Posted By typhoid

Because < V1 you will be Vmcg limited. By...

Because < V1 you will be Vmcg limited. By definition you would have to progressivly apply power up to V1 when you may go to max and expect some deviation. Modulate the power in line with the NWS /...
Forum: Tech Log
22nd Jun 2008, 08:42
Replies: 25
Views: 14,316
Posted By typhoid

The Airbus advice could also mean that it's poor...

The Airbus advice could also mean that it's poor form to blow (harmless) black soot over people.
Forum: Tech Log
19th Apr 2008, 19:34
Replies: 56
Views: 19,088
Posted By typhoid

Well to do so would be to ignore the effects of...

Well to do so would be to ignore the effects of flutter, and would probably be bad news!
Forum: Military Aviation
8th Mar 2008, 12:48
Replies: 25
Views: 7,154
Posted By typhoid

Ah, so many skeptics. BAE does actually have...

Ah, so many skeptics. BAE does actually have quite a few very competent people working very hard to make the a/c the best it can be for the funds available today. Not everyone is a 'bean counter' as...
Forum: Rumours & News
17th Jan 2008, 22:20
Replies: 949
Views: 425,351
Posted By typhoid

What doesn't make sense about the 'loss of power'...

What doesn't make sense about the 'loss of power' theory is that none of the passengers have reported 'the lights went out' or 'the screens turned off.' That's normally the sort of stuff pax notice,...
Forum: Aviation History and Nostalgia
13th Jan 2008, 21:15
Replies: 3,441
Views: 720,085
Posted By typhoid

Why not give BAE a bell and ask to pop back to...

Why not give BAE a bell and ask to pop back to Woodford??
Forum: Tech Log
23rd Dec 2007, 09:03
Replies: 19
Views: 5,305
Posted By typhoid

That is suprising. ~10% N1 split on the...

That is suprising. ~10% N1 split on the throttles should have been quite noticable. But these things happen I suppose.

Still one low speed RTO due to the auto keep-out-zone logic is better then...
Forum: Tech Log
23rd Dec 2007, 08:47
Replies: 32
Views: 6,728
Posted By typhoid

8 to 10t sounds a little high for a bleeds off...

8 to 10t sounds a little high for a bleeds off take-off. Are you sure that's the number?

Our a/c you gain 1000kg TOW with bleeds off and that's on an a/c around 100t MTOW.
Forum: Tech Log
24th Oct 2007, 21:02
Replies: 23
Views: 8,337
Posted By typhoid

The reason for not setting the park brake...

The reason for not setting the park brake following an RTO (and we are really talking quite high KE not a low speed abort) is to prevent the hydraulic thermal fuses from blowing which prevents...
Forum: Flight Testing
24th Sep 2007, 19:08
Replies: 15
Views: 2,242
Posted By typhoid

Ah! Now the bells are ringing..

Ah! Now the bells are ringing..
Forum: Flight Testing
24th Sep 2007, 07:52
Replies: 15
Views: 2,242
Posted By typhoid

Mad, I would be interested to find out about the...

Mad, I would be interested to find out about the MRA4 issue. To my recollection nothing like that has happened on the ground. We did have a little fun in the air repressurising but that was more of...
Showing results 1 to 30 of 30


 
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