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1st Oct 2017, 08:57
Replies: 554
Views: 526,140
Posted By Flight Safety

Shaft missing

Looking at the photos, the fan shaft appears to be missing, indicating a shaft failure and fan departure. I imagine a shaft failure would result in a spinning fan departing forward then falling...
16th May 2017, 15:40
Replies: 37
Views: 38,897
Posted By Flight Safety

Don't know if he overshot the runway center line,...

Don't know if he overshot the runway center line, but he lost it on the turn to final. Looks like a classic stall/spin. One eyewitness said he saw the aircraft in a 90 degree bank, then saw it roll...
29th Nov 2016, 19:06
Replies: 1,099
Views: 1,137,874
Posted By Flight Safety

Perhaps someone should be looking into the flight...

Perhaps someone should be looking into the flight history of this pilot/airline owner who was flying the plane, to see how much recent experience he had. It's possible that he got distracted with an...
Forum: Tech Log
30th Jul 2012, 18:42
Replies: 118
Views: 25,290
Posted By Flight Safety

Right, don't know why I didn't look there. :O

Right, don't know why I didn't look there. :O
Forum: Tech Log
30th Jul 2012, 17:40
Replies: 118
Views: 25,290
Posted By Flight Safety

787 engine failure in Charleston, SC

Surprised this hasn't been posted yet.

Boeing 787 Engine Failure Sparks Fire at Charleston Airport | Aviation International News...
10th Jul 2012, 20:27
Replies: 1,316
Views: 322,118
Posted By Flight Safety

Stall warning logic

I don't understand the stall warning logic of the A330. If you have an indicated airspeed of less than 60kts, and there is no weight on wheels (i.e. the airplane knows it's airborne), aren't you...
Forum: Tech Log
24th May 2012, 19:58
Replies: 1
Views: 1,239
Posted By Flight Safety

A380 wing fixes - Static load test results

Interesting article on Flight Global regarding Airbus plans to fix the rib feet cracking issue. Sounds like they plan to make extensive mods to a large number of wing ribs in each wing, including...
19th Jan 2012, 22:09
Replies: 440
Views: 273,443
Posted By Flight Safety

If the CEO of Ethiopian Airlines is going to...

If the CEO of Ethiopian Airlines is going to react badly to the official accident report and engage in a misguided public relations battle, instead of doing something constructive about the airline's...
Forum: Tech Log
29th Dec 2011, 12:52
Replies: 155
Views: 28,453
Posted By Flight Safety

Oggers, I'm reposting your Otto cycle diagram...

Oggers, I'm reposting your Otto cycle diagram from your interesting post #118.

http://upload.wikimedia.org/wikipedia/commons/c/cf/P-V_otto.png

Work accomplished can be seen in the diagram....
Forum: Tech Log
9th Dec 2011, 16:24
Replies: 30
Views: 4,039
Posted By Flight Safety

Full wings, did you read update #2 of the Google...

Full wings, did you read update #2 of the Google car link you posted? It's interesting.
Forum: Tech Log
8th Dec 2011, 21:54
Replies: 16
Views: 2,592
Posted By Flight Safety

Here's another one, the 747 Halifax accident from...

Here's another one, the 747 Halifax accident from 2004.

ASN Aircraft accident Boeing 747-244B (SF) 9G-MKJ Halifax International Airport, NS (YHZ)...
Forum: Tech Log
8th Dec 2011, 21:10
Replies: 30
Views: 4,039
Posted By Flight Safety

Mathfox and Vapilot2004 both make good points....

Mathfox and Vapilot2004 both make good points. Computers are good at the boring and repetitious (via programming), while humans are good at the adaptive and unpredictable (via insight and intuition)....
Forum: Tech Log
8th Dec 2011, 20:12
Replies: 24
Views: 6,864
Posted By Flight Safety

I've often seen a small shock wave just inboard...

I've often seen a small shock wave just inboard of the nacelle on a 737NG, just aft of the leading edge on top of the wing.
Forum: Tech Log
29th Nov 2011, 18:13
Replies: 155
Views: 28,453
Posted By Flight Safety

Barit1, I believe the J58 of the Blackbird worked...

Barit1, I believe the J58 of the Blackbird worked the way you described. Accord to Ben Rich, 80% of the power produced by the J58 at Mach 3.2 came from the resulting ram effect.
Forum: Tech Log
29th Nov 2011, 17:13
Replies: 155
Views: 28,453
Posted By Flight Safety

Actually, both ramjets and scramjets still...

Actually, both ramjets and scramjets still require the "compressor" function, as they are both still heat engines using external oxygen for combustion. It's just that the "compressor" is external to...
Forum: Tech Log
29th Nov 2011, 10:31
Replies: 155
Views: 28,453
Posted By Flight Safety

Other related tidbits: Volumetric Efficiency...

Other related tidbits:

Volumetric Efficiency - Primarily related to power production. The amount of air and oxygen pumped through a given engine's physically limited size, determines the amount of...
Forum: Tech Log
28th Nov 2011, 23:11
Replies: 155
Views: 28,453
Posted By Flight Safety

Thermal to Kinetic Energy

All, a fun thread, but all of you are missing an important piece of information, the direct relationship between thermal energy and mechanical kinetic energy.

I'll skip the reason for a...
18th Sep 2011, 18:58
Replies: 462
Views: 126,567
Posted By Flight Safety

Adequate Testing

Given the description of the 1998 event, I wonder if there's adequate testing of these aircraft after modifications have been made to the airframes. Given that the purpose of the mods is to increase...
18th Sep 2011, 16:42
Replies: 462
Views: 126,567
Posted By Flight Safety

When it happened in 1998

Description of similar event for P51 Voodoo Chile in 98.

Voodoo - 98 NCAR (http://www.warbird.com/voodoo.html)

http://www.warbird.com/voodoo3.jpg

Interesting link previously posted by...
9th Sep 2011, 17:19
Replies: 159
Views: 28,443
Posted By Flight Safety

Example of Confused Over Reliance on Automation

This is an interesting article from Aviation Week:

High-Altitude Upset Recovery | AVIATION WEEK...
5th Sep 2011, 21:09
Replies: 159
Views: 28,443
Posted By Flight Safety

This problem is not really as hard to solve as...

This problem is not really as hard to solve as some believe, except getting the airlines to go along with it and to put up the cash to fund it.

TacomaSailor is dead on correct. As an IT...
Forum: Tech Log
30th May 2011, 16:18
Replies: 3,435
Views: 1,342,761
Posted By Flight Safety

Right Way Up, about as likely as 3 engines...

Right Way Up, about as likely as 3 engines failing at the exact same time in the exact same way, not very likely.
Forum: Tech Log
30th May 2011, 16:08
Replies: 3,435
Views: 1,342,761
Posted By Flight Safety

stall warning

Why would the stall warning be programmed to stop if the AOA indication is deemed unreliable below 60kts? Doesn't it seem intuitive that if a 200t jet transport has an IAS of < 60kts (and WOW says...
Forum: Tech Log
30th May 2011, 03:36
Replies: 3,435
Views: 1,342,761
Posted By Flight Safety

Maintaining the previous configuration, should...

Maintaining the previous configuration, should maintain the airspeed.

Seems to me if you're at cruise altitude and speed on both AP and AT, then suddenly you loose IAS and both the AP and AT...
Forum: Tech Log
29th May 2011, 23:20
Replies: 3,435
Views: 1,342,761
Posted By Flight Safety

More Basic Observations

If you don't trust the PDF and all the magic, isn't this what the ISIS is for? Also, what were the engines doing at IDLE only 70 seconds or so after they commanded TOGA power? They must have really...
Showing results 1 to 25 of 741
 


 
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