IndianGuy
Topic Author
Posts: 3126
Joined: Fri Jul 07, 2000 3:14 pm

Check Out This Pic

Wed Jan 24, 2001 10:13 pm


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Photo © Bernard Charles



Do 747's really rotate this much? This one has barely missed striking its rear-end!
 
cfalk
Posts: 10221
Joined: Mon Dec 04, 2000 6:38 pm

RE: Check Out This Pic

Wed Jan 24, 2001 11:51 pm

If you watch a takeoff, the rotation angle clears the runway, the plane lifts off, and the plane can increase the angle imediately afterwords. This is especially true for long aircraft like a 737-800, which is long and low to the ground. I flew one today - liftoff is at a mild angle, which gets significantly steeper immediately afterwards.

Charles
The only thing you should feel when shooting a terrorist: Recoil.
 
Boeing727
Posts: 814
Joined: Sat May 22, 1999 1:32 am

..and This One...

Thu Jan 25, 2001 1:58 am

I guess so...

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Photo © Matthew Johnston



Boeing727
 
XFSUgimpLB41X
Posts: 3961
Joined: Fri Aug 25, 2000 1:18 am

RE: ..and This One...

Thu Jan 25, 2001 2:26 am

jets always rotate like that. The DC-10, for example, if it is light will rotate to 22 degrees. By the time you reach maximum rotation angle you are already a ways into the air.
Chicks dig winglets.
 
747-600X
Posts: 2492
Joined: Wed Jan 05, 2000 3:11 am

RE: Check Out This Pic

Thu Jan 25, 2001 3:00 am

Does anyone know the rotation angle of jets on the ground before they have a tailscrape - the 777-300 or 757-300 perhaps? (I would ask about the 737-900 but that's probably about 2 degrees...)
 
AJ
Posts: 2295
Joined: Wed Nov 03, 1999 3:54 pm

RE: Check Out This Pic

Thu Jan 25, 2001 8:25 am

If the angle of rotation of an aircraft is limited by the aircraft fuselage it is known as 'geometrically limited'. Boeing has installed higher undercarriage on the B737NG and B767-400 to allow a higher rotation attitude. Boeing has suffered from this before, the Boeing 707 could not be stretched further due to being geometrically limited, whereas the competition, Douglas' DC-8, had the p[otential to be stretched, and it was!
 Smile/happy/getting dizzy
 
thomacf
Posts: 525
Joined: Tue Sep 05, 2000 9:11 am

RE: Check Out This Pic

Thu Jan 25, 2001 8:41 am

I saw evidence of a 727 scraping the ground at Cleveland Burke-Lakefront. The tailscrape looked pretty beat-up and the co-pilot said it had been hit the week before when it took-off out Cleveland Burke-Lakefront.
 
gmonney
Posts: 2076
Joined: Fri Jan 12, 2001 2:59 pm

RE: Check Out This Pic

Thu Jan 25, 2001 8:53 am

WOW, I never knew it was soo close, is there not something to prevent the tail from hitting or not. There should be, it could be potentialy dangerous,

Nice pics though!!

Drive it like you stole it!
 
cfalk
Posts: 10221
Joined: Mon Dec 04, 2000 6:38 pm

RE: Check Out This Pic

Thu Jan 25, 2001 5:38 pm

Gmonney,

Yes it can be dangerous, but generally not immediately disasterous. A hard tail strike can bend the frame and pop some rivits. If a pressurized part of the aircraft is struck, then the pilots will soon know when their pressurization systems start giving funny readings, and they can turn around. Otherwise, if the tailstrike is not properly fixed, the bent components and popped rivits and welds will cause rapid fatigue and possible failure sometime in the future. I have never heard of a tailstrike causing a disaster on the same flight. The important thing is that is reported and fixed.

The JAL 123 accident, as I recall, was caused by some damage done previously to the tail (I think it was a tailstrike). The repair job was not properly done, and the new rivits were put in places where they would fatigue rapidly, which is eventually what happened, killing over 500 people

Many planes have some sort of rudementary tail skid, made of hardwood or maybe metal. It will protect the plane from damage from very slight tailstrikes, but generally, if there is a tailstrike, however minor, the airlines are required to make a close inspection of the tail.

Cheers,

Charles
The only thing you should feel when shooting a terrorist: Recoil.