Sponsor Message:
Military Aviation & Space Forum
My Starred Topics | Profile | New Topic | Forum Index | Help | Search 
Peacetime/Wartime Loadings  
User currently offlineMonocleman From United States of America, joined Apr 2001, 137 posts, RR: 0
Posted (13 years 4 months 3 days 7 hours ago) and read 995 times:

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

7 replies: All unread, jump to last
 
User currently offlineMikeN From , joined Dec 1969, posts, RR:
Reply 1, posted (13 years 4 months 2 days 18 hours ago) and read 856 times:

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


User currently offlineC17load From , joined Dec 1969, posts, RR:
Reply 2, posted (13 years 4 months 2 days 10 hours ago) and read 849 times:

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.

User currently offlineDuce50boom From , joined Dec 1969, posts, RR:
Reply 3, posted (13 years 4 months 2 days 8 hours ago) and read 848 times:

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

User currently offlineMonocleman From United States of America, joined Apr 2001, 137 posts, RR: 0
Reply 4, posted (13 years 4 months 2 days 7 hours ago) and read 844 times:

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

User currently offlineMikeN From , joined Dec 1969, posts, RR:
Reply 5, posted (13 years 4 months 2 days 6 hours ago) and read 844 times:

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


User currently offlineMonocleman From United States of America, joined Apr 2001, 137 posts, RR: 0
Reply 6, posted (13 years 4 months 1 day 12 hours ago) and read 835 times:

Nice site, Mike!

User currently offlineMikeN From , joined Dec 1969, posts, RR:
Reply 7, posted (13 years 4 months 1 day 8 hours ago) and read 830 times:

Thanks!

Top Of Page
Forum Index

Reply To This Topic Peacetime/Wartime Loadings
Username:
No username? Sign up now!
Password: 


Forgot Password? Be reminded.
Remember me on this computer (uses cookies)
  • Military aviation related posts only!
  • Not military related? Use the other forums
  • No adverts of any kind. This includes web pages.
  • No hostile language or criticizing of others.
  • Do not post copyright protected material.
  • Use relevant and describing topics.
  • Check if your post already been discussed.
  • Check your spelling!
  • DETAILED RULES
Add Images Add SmiliesPosting Help

Please check your spelling (press "Check Spelling" above)


Similar topics:More similar topics...
Peacetime/Wartime Loadings posted Sat Jul 28 2001 06:09:35 by Monocleman

Sponsor Message:
Printer friendly format