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Search: Posts Made By: vapilot2004
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28th Jun 2018, 19:00
Replies: 69
Views: 17,158
Posted By vapilot2004

I understand materials and methods may have...

I understand materials and methods may have changed, in some cases, dramatically, but I still believe there remains some value in lessons from the past to be learned from Concorde, from design to...
28th Jun 2018, 01:12
Replies: 4
Views: 6,720
Posted By vapilot2004

The AMU is an Achilles heel on the A320. When the...

The AMU is an Achilles heel on the A320. When the digital side fails, you can lose all comms (VHF/HF/SATCOM). There are alternates for the analog side going TU, but not when the logic bits take a...
27th Jun 2018, 01:10
Replies: 69
Views: 17,158
Posted By vapilot2004

Concorde: I've watched this lovely gal takeoff...

Concorde: I've watched this lovely gal takeoff and land and have visited her in a decommissioned state, but have never taken flight, so this news is most welcome. I understand for power, they are...
23rd Jun 2018, 22:53
Replies: 8
Views: 5,771
Posted By vapilot2004

Left, meaning cockpit? Heater failure or bird...

Left, meaning cockpit?
Heater failure or bird strike, I would imagine.
23rd Jun 2018, 09:20
Replies: 155
Views: 37,246
Posted By vapilot2004

The more direct and knock-on negative effects you...

The more direct and knock-on negative effects you read about makes one realize how much the Brexiters were misinformed.



Same situation in the states with our orange-tinted movement, really.
22nd Jun 2018, 08:41
Replies: 155
Views: 37,246
Posted By vapilot2004

The issue cuts both ways. Airbus would be...

The issue cuts both ways. Airbus would be unlikely to find a more experienced lot to produce wings outside of the UK. Shooting themselves in the foot, I think.
Forum: Tech Log
11th Jun 2018, 18:48
Replies: 6
Views: 1,691
Posted By vapilot2004

There are two things happening, the movement of...

There are two things happening, the movement of the SPEED BRAKE LEVER and the actuation of the panels, which (SYSTEM A) are split into two groups, GROUND and FLIGHT.

When you have wheel spin up on...
Forum: Tech Log
10th Jun 2018, 08:25
Replies: 9
Views: 3,537
Posted By vapilot2004

Outside of the mechanical failures that can...

Outside of the mechanical failures that can befall any automatic system eventually, the Classics had two common problems that would cause this behavior: the failure of a clutch switch (really the...
Forum: Tech Log
8th Jun 2018, 21:30
Replies: 26
Views: 5,293
Posted By vapilot2004

In practice, it would be fairly difficult for the...

In practice, it would be fairly difficult for the cabin altitude to be driven that low with a flight deck crew that is present and awake during ground operations, although for this thought exercise,...
Forum: Tech Log
8th Jun 2018, 02:05
Replies: 26
Views: 5,293
Posted By vapilot2004

Thanks for doing the math, BAe, however, an 8psi...

Thanks for doing the math, BAe, however, an 8psi diff on the ground seems rather high. That would put the cabin altitude very far below sea level (circa -10,000 feet) even at an airport like Denver...
Forum: Tech Log
7th Jun 2018, 22:44
Replies: 26
Views: 5,293
Posted By vapilot2004

The negative pressure valve is typically just a...

The negative pressure valve is typically just a spring-loaded panel somewhere along or near the belly. The combination types (negative and over-press) are similar and both types are on all current...
7th Jun 2018, 19:20
Replies: 27
Views: 20,564
Posted By vapilot2004

Two points I found interesting - one, the owners...

Two points I found interesting - one, the owners of the leased aircraft apparently already made their investment back (with a profit) during the lease period. What happens to the aircraft afterwards...
2nd Jun 2018, 19:58
Replies: 48
Views: 20,784
Posted By vapilot2004

The airframe on the 737 is designed to be a...

The airframe on the 737 is designed to be a high-cycle, low-maintenance airframe, while the A320 comes from the factory with a lower design goal. The Airbus supplementary goals, while still falling...
Forum: Tech Log
29th May 2018, 23:20
Replies: 55
Views: 15,865
Posted By vapilot2004

Stall speed: flap deployment generally increases...

Stall speed: flap deployment generally increases the stall margin - turning, decreases it. Stall concerns would seem to be an unlikely training point, unless flap retraction was the concern....
26th May 2018, 20:38
Replies: 48
Views: 19,563
Posted By vapilot2004

I believe since Trump's crony, Putin has been in...

I believe since Trump's crony, Putin has been in power, Russia has been a greater threat to Western democracies than during all the latter years of the Cold War.
24th May 2018, 21:17
Replies: 48
Views: 19,563
Posted By vapilot2004

Excellent video. A330 PC. :ok: Indeed,...

Excellent video. A330 PC. :ok:



Indeed, as Russia Today and Fox News media propaganda outlets attest to daily.

No Russian missile system ever crossed into Ukraine: MoD rejects Dutch MH17...
Forum: Tech Log
19th May 2018, 22:05
Replies: 9
Views: 1,833
Posted By vapilot2004

On all Boeing twins, the flight deck is the only...

On all Boeing twins, the flight deck is the only area that receives air directly from its respective pack (L). While there is recirculated air in the overall system, the plenum pressure is such that...
17th May 2018, 07:12
Replies: 3
Views: 6,214
Posted By vapilot2004

Well, that's not something that happens every day.

Well, that's not something that happens every day.
16th May 2018, 01:36
Replies: 58
Views: 22,860
Posted By vapilot2004

Good on you AvgasDino. :ok: I have been...

Good on you AvgasDino. :ok:

I have been helping a family friend compile some of his memories and stories during the war as a B-24 bomber captain and afterwards. My uncle, and inspiration for my...
15th May 2018, 21:51
Replies: 37
Views: 14,191
Posted By vapilot2004

Bulk shipments of Lion Batteries in Passenger...

Bulk shipments of Lion Batteries in Passenger Aircraft Cargo Holds - the US Political Story:

The ICAO rule was held up by Congress over an FAA budget bill fight going back to 2016. The Obama...
Forum: Tech Log
15th May 2018, 09:29
Replies: 13
Views: 2,656
Posted By vapilot2004

There is a cracking good thread on Concorde here...

There is a cracking good thread on Concorde here in Tech Log with generous contributions (2000+ posts) from designers, pilots, and mechanics that would be an ideal place to put your query, JCA.
...
Forum: Tech Log
14th May 2018, 23:26
Replies: 4
Views: 1,314
Posted By vapilot2004

Not only the jurassics. On the classic 737, AB...

Not only the jurassics. On the classic 737, AB decel control is also done programmatically with no feedback loops (outside of what the anti-skid does).

For each setting of auto brake, there is a...
14th May 2018, 22:20
Replies: 37
Views: 14,191
Posted By vapilot2004

Regarding runaway thermal events, there is...

Regarding runaway thermal events, there is unfortunately no amount of electronic control nor digital sophistication on the outside that can stop the sudden internal short circuits that are the...
12th May 2018, 07:54
Replies: 37
Views: 14,191
Posted By vapilot2004

We are at least five years away from battery tech...

We are at least five years away from battery tech that can step into a Lion's shoes. While we are trained and equipped to prevent such fires from spreading in the passenger cabin, the smoke can be...
11th May 2018, 02:22
Replies: 84
Views: 18,964
Posted By vapilot2004

There is a learning curve, but I highly doubt the...

There is a learning curve, but I highly doubt the world's major airlines nor their customers care to operate or take a ride on anything that sits upon such a curve.



That's true enough. Perhaps...
11th May 2018, 01:40
Replies: 84
Views: 18,964
Posted By vapilot2004

History has proven this bit to be true, but...

History has proven this bit to be true, but regarding commercial aviation...


France (and Germany) are part of agreement regimes regarding technology exports in aerospace which includes...
10th May 2018, 21:14
Replies: 84
Views: 18,964
Posted By vapilot2004

Actually it is the good faith repayment (with...

Actually it is the good faith repayment (with interest) of a $400 million dollar deposit made by the Shah's government (remember him?) towards US military hardware.

That hardware was never...
10th May 2018, 10:19
Replies: 265
Views: 29,082
Posted By vapilot2004

Thank G-d for clear skies (and minds).

Thank G-d for clear skies (and minds).
10th May 2018, 09:43
Replies: 265
Views: 29,082
Posted By vapilot2004

Who knows, since the incursion of the myopic and...

Who knows, since the incursion of the myopic and ignorant into the White House.
10th May 2018, 09:34
Replies: 84
Views: 18,964
Posted By vapilot2004

Any ideas of simply renegotiating the hard-won...

Any ideas of simply renegotiating the hard-won compromises Iran gave us as if it was some sleazy real estate deal of Trumpian standards is pure folly. We've turned our backs on our allies and broken...
10th May 2018, 09:18
Replies: 265
Views: 29,082
Posted By vapilot2004

Thanks Carry. :ok: I read that very piece just a...

Thanks Carry. :ok: I read that very piece just a bit ago, after perusing the news SA provided. The corporate guidance seems to have been baked in by the EU bureaucracy and demands the change -...
10th May 2018, 09:10
Replies: 265
Views: 29,082
Posted By vapilot2004

The more I hear about things like this, the more...

The more I hear about things like this, the more I imagine the leavers choosing the collective fate without having all the facts before them.
10th May 2018, 00:36
Replies: 265
Views: 29,082
Posted By vapilot2004

Aside from the proposed system, I thought the UK...

Aside from the proposed system, I thought the UK will remain a partner in ESA. It seems a bit odd that they would be forced to pay for Galileo access after having worked (and continuing support) on...
6th May 2018, 09:45
Replies: 265
Views: 29,082
Posted By vapilot2004

Can't trust the EU post-Brexit, and the US can...

Can't trust the EU post-Brexit, and the US can switch their birds off at will more or less (war), so it makes sense.
Forum: Tech Log
5th May 2018, 08:59
Replies: 2
Views: 1,091
Posted By vapilot2004

Plenty of good information on the over-press and...

Plenty of good information on the over-press and negative pressure valves in this recent Tech Log thread:

Diff between Outflow valves and Positive/Negative Pressure valves?...
Showing results 1 to 35 of 1000
 


 
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