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Search: Posts Made By: eppy
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13th Apr 2019, 00:40
Replies: 21
Views: 14,139
Posted By eppy

Smythe is partially correct. The bug is an...

Smythe is partially correct. The bug is an initialisation problem only, however the affected GPS systems will not start up with the correct date. Without the correct date/almanac loaded the GPS...
12th Apr 2019, 13:15
Replies: 21
Views: 14,139
Posted By eppy

GPS rollover is not directly related to Y2K or...

GPS rollover is not directly related to Y2K or the Unix year 2038 problem, but the underlying concept is the same.

The GPS standard has 10 bits of data for the date which is only enough for around...
10th Mar 2019, 18:10
Replies: 5,125
Views: 10,403,209
Posted By eppy

Very quick response from the NY Times -...

Very quick response from the NY Times - especially for a Sunday.Are There Problems With the Boeing 737 Max? A Second Deadly Crash Raises New Questions...
23rd Feb 2019, 09:45
Replies: 33
Views: 15,284
Posted By eppy

The former Chairman of the NTSB, Jim Hall, made a...

The former Chairman of the NTSB, Jim Hall, made a pitch for cockpit CCTV linked to the FDR or CVR back in 2015, but nothing has become of it yet....
20th Nov 2018, 13:27
Replies: 2,100
Views: 1,177,930
Posted By eppy

Strongly disagree. Let's put this claim to bed....

Strongly disagree. Let's put this claim to bed. The only global means for real time data transfer (streaming) is via satellite, and all aircraft satellite antennae are directional (vertically...
8th Dec 2017, 19:55
Replies: 161
Views: 139,108
Posted By eppy

I am very interested in these recent reliability...

I am very interested in these recent reliability events in terms of terms of ETOPS certification process. I'm wondering if a crack (pun not intended) has been found in the certification methodology...
18th Nov 2017, 15:39
Replies: 49
Views: 17,679
Posted By eppy

I doubt the damage is as bad as it looks. If the...

I doubt the damage is as bad as it looks. If the statement from Airlander is correct (big if I know) then this was a controlled, pyrotechnically activited deflation system that automatically...
21st Jun 2016, 14:50
Replies: 56
Views: 34,178
Posted By eppy

Actually, they do specify the aids. Just open the...

Actually, they do specify the aids. Just open the PDF linked to on the page. For example, for Canberra they list DME, NDB and VOR as the nominated backup aids.
14th May 2016, 15:53
Replies: 61
Views: 44,136
Posted By eppy

8CHE - Not every instruction. By law, ATC...

8CHE - Not every instruction. By law, ATC instructions must be obeyed except in emergencies. As per 14 CFR 91.123 - Compliance with ATC clearances and instructions:

"Except in an emergency, no...
23rd Nov 2015, 18:30
Replies: 38
Views: 35,045
Posted By eppy

Hang on - this is a thrust driven aircraft, not a...

Hang on - this is a thrust driven aircraft, not a wheel driven car! Slippery taxiway = reduced friction co-efficient = easier taxiing on one engine (assuming enough friction on surface to compensate...
15th Oct 2015, 21:37
Replies: 21
Views: 9,026
Posted By eppy

UAV officially operated in UK civilian airspace

http://www.bbc.co.uk/news/technology-34538727 Drone tested for an hour in UK civil airspace - BBC News


A reasonably astute coverage of a drone being controlled by NATS through civilian airspace...
11th Sep 2015, 19:39
Replies: 741
Views: 716,455
Posted By eppy

One small point. The hull is lost. The fuel was...

One small point. The hull is lost. The fuel was cut off, though there was probably a major leak from the 70psi main fuel pump line severed by the uncontained failure of the high pressure compressor....
Forum: Tech Log
5th Jul 2015, 09:16
Replies: 27
Views: 5,992
Posted By eppy

From FAA "lessons learned" report on AA 191...

From FAA "lessons learned" report on AA 191 Accident:



The NTSB concluded that the airplane was being flown in accordance with American Airline's engine failure procedures. Immediately after ...
Replies: 420
Views: 66,496
Posted By eppy

Autonomous commercial flight services have...

Autonomous commercial flight services have already commenced. DHL has launched a autonomous cargo delivery service to an Island in the North Sea.

It's a small drone, and has ground controllers...
25th Sep 2014, 22:42
Replies: 59
Views: 30,866
Posted By eppy

I've never seen 9 slices of Swiss Cheese have...

I've never seen 9 slices of Swiss Cheese have their holes lined up before, but this is what we see in this case.

Lots of lessons learned here, but it was way too close. Had the aircraft landed on...
29th Mar 2014, 13:27
Replies: 2,186
Views: 912,555
Posted By eppy

It is worth noting the following extract from the...

It is worth noting the following extract from the above report that clearly and unambiguously states that the problems were not due to the new technologies or processes per se, but due to poor...
2nd May 2013, 17:09
Replies: 741
Views: 547,446
Posted By eppy

WhybeFlier - I can confirm that Notadog has a...

WhybeFlier - I can confirm that Notadog has a current Airline Transport Pilot licence.

Can't say anything else about the quality of his comments though :rolleyes:
31st Mar 2013, 14:03
Replies: 78
Views: 41,473
Posted By eppy

Certified as safe: Yes. Certified as reliable:...

Certified as safe: Yes. Certified as reliable: Highly unlikely.

The fireproof box and containment system appears to based on solid and proven engineering priciples, however will need to...
30th Mar 2013, 11:34
Replies: 78
Views: 41,473
Posted By eppy

According to this link (Question 6):...

According to this link (Question 6): https://cramberry.net/sets/63118-757-hydraulics (http://https://cramberry.net/sets/63118-757-hydraulics) the RAT on a 757/767 requires a minimum airspeed of 130...
29th Mar 2013, 23:05
Replies: 78
Views: 41,473
Posted By eppy

All the other power supplies able to supply...

All the other power supplies able to supply enough power for braking require a fuel powered generator when when in flight (Engine Generators or APU). The scenario that others have referred to is the...
16th Mar 2013, 14:14
Replies: 2,186
Views: 912,555
Posted By eppy

Just to put this one to bed; Sully's flight had...

Just to put this one to bed; Sully's flight had generators from both engines online until the moment of touchdown. Both engines were badly damaged but continued to generate above idle power (enough...
8th Aug 2012, 16:21
Replies: 1,316
Views: 331,079
Posted By eppy

The question is not so much one of...

The question is not so much one of over-automation or under-automation, but the sudden transition from full automation to almost none, without adequate communication of information to allow for...
Forum: Tech Log
26th Jul 2012, 17:50
Replies: 116
Views: 39,639
Posted By eppy

Kudos to Chimbu and VirginExcess - they have...

Kudos to Chimbu and VirginExcess - they have nailed it.

The reality is that the problem is commercial problem as much as a technical problem. Automation has been a commercial necessity in the IT...
23rd Mar 2012, 22:14
Replies: 21
Views: 1,904
Posted By eppy

Just a few minor corrections. It was 30 years...

Just a few minor corrections.
It was 30 years ago, not 40 years ago.
A: and B: were both for 360k 5.25 inch floppy drives . The 3.5 inch drive wouldn't be invented until the IBM PS/2 arrived in...
19th Mar 2012, 21:45
Replies: 2
Views: 2,680
Posted By eppy

Fire in GLA terminal

I've landed at GLA and am stuck on board due to fire in terminal building, which has been evacuated.
Showing results 1 to 25 of 26
 


 
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