Monocleman
Topic Author
Posts: 133
Joined: Fri Apr 27, 2001 10:21 am

Peacetime/Wartime Loadings

Sat Jul 28, 2001 1:09 pm

When looking at the Air Force specs page for the C-5, there are two maximum takeoff weights - 769,000 pounds (peacetime), 840,000 pounds (wartime). Why can more be carried in wartime? Does it involve running engines over n1 or something along those lines or do you just flick a switch to increase preformance?

-Will
 
Guest

RE: Peacetime/Wartime Loadings

Sun Jul 29, 2001 2:30 am

Will,

The C-5 is capable of taking off at the wartime max gross weight of 840,000 pounds with no problem (as long as the necessary field length is available). Actually, "I" feel the Galaxy is capable of taking off at over one million pounds gross weight! But, heavier gross weights put a lot of stress on the wings, therefore shortening their lifespan. The 769,000 pound GW limit is in place to ensure the wings aren't unecessarily overstressed. Also, the 769,000 pound limit ensures that the C-5 can takeoff from just about any "improved" airfield in the world. By "improved" I mean it must be made of concrete or something of the sort, otherwise the aircraft could sink at heavy gross weights.

The heaviest GW that I ever took off at was just under 800,000 pounds during the Gulf War. We had two M1-A1 Abrams tanks, 73 PAX, and a lot of fuel on board.

BTW, there are no "switches" to flip.

Mike
 
Guest

RE: Peacetime/Wartime Loadings

Sun Jul 29, 2001 10:21 am

Mike hit the nail on the head on this one. The "Peacetime" weight will always be significantly less the the war weight. This ensures that we are not putting too much stress on the wings as well as the engines. As expensive as planes are these days, we have to conserve them as long as we can.
 
Duce50Boom
Posts: 723
Joined: Tue May 29, 2001 8:03 am

RE: Peacetime/Wartime Loadings

Sun Jul 29, 2001 12:44 pm

speaking from a KC-10 point of view, our max takeoff weight is the same (590,000) wether peacetime or war. although we can no doubt carry alot more, our performance charts don't go too far past 590
 
Monocleman
Topic Author
Posts: 133
Joined: Fri Apr 27, 2001 10:21 am

RE: Peacetime/Wartime Loadings

Sun Jul 29, 2001 1:07 pm

Thanks, guys. And the "switch" thing was a joke, funny or not. Thanks again.
 
Guest

RE: Peacetime/Wartime Loadings

Sun Jul 29, 2001 2:04 pm

Will,

Yeh, I knew it was a joke, I should have used a smiley after my remark.  Big grin

You may want to visit my web site to get more info on the heavy lifters....

http://www.theaviationzone.com/

Mike
 
Monocleman
Topic Author
Posts: 133
Joined: Fri Apr 27, 2001 10:21 am

RE: Peacetime/Wartime Loadings

Mon Jul 30, 2001 8:10 am

Nice site, Mike!
 
Guest

RE: Peacetime/Wartime Loadings

Mon Jul 30, 2001 12:28 pm

Thanks!

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