Springbok139
Topic Author
Posts: 25
Joined: Fri Sep 02, 2005 8:16 pm

Best Power To Weight Ratio?

Tue Nov 29, 2005 5:44 pm

I flew on a 737-400 this morning and I noticed how quickly the aircraft accelerated and it got me thinking.What passenger aircraft has the best power(thrust) to weight ratio?In other words if we had to line them up on a huge drag strip what aircraft would accelerate the fastest with similar loads over a given distance?I have a feeling the 747 SP would be right up there but I'm not sure...any ideas?
 
kaneporta1
Posts: 710
Joined: Wed Jun 01, 2005 12:22 am

RE: Best Power To Weight Ratio?

Tue Nov 29, 2005 5:49 pm

I'm sure that nothing would beat an empty 777LR. Not even a 757.
I'd rather die peacefully in my sleep, like my grandfather, not terrified and screaming, like his passengers
 
QFA380
Posts: 2013
Joined: Fri Jul 22, 2005 4:38 pm

RE: Best Power To Weight Ratio?

Tue Nov 29, 2005 7:23 pm

The daily UA 744's to MEL from SYD are said to have VERY short take-off runs.
I'm not sure about pax planes but some G-V's have big engines. 29 360lbs of thrust on a 30m (98 feet) plane seems like alot to me.

QFA380
 
Oryx
Posts: 123
Joined: Fri Nov 18, 2005 9:25 pm

RE: Best Power To Weight Ratio?

Tue Nov 29, 2005 9:00 pm

In another thread (757 Take Off Roll Less Than Smaller Planes) B2707SST published a graph with the following data:

Concorde: 0.375
752: 0.341
712: 0.339
A32X, 737NG, A306, 762: 0.31 - 0.335
A342, A343: 0.22
A388: 0.25

All other 0.265-0.31.

In the group of A32X, A318 should be on top.
 
md80fanatic
Posts: 2365
Joined: Tue Apr 13, 2004 11:29 pm

RE: Best Power To Weight Ratio?

Tue Nov 29, 2005 9:09 pm

Quoting Kaneporta1 (Reply 1):
I'm sure that nothing would beat an empty 777LR. Not even a 757.

MD-11  Wink
 
airxliban
Posts: 4285
Joined: Wed Oct 01, 2003 12:14 pm

RE: Best Power To Weight Ratio?

Tue Nov 29, 2005 9:30 pm

I think that the correct answer to this is:


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Photo © Kar-lok Wong



I believe that Korean Air 773s have the highest power to weight ratios, because they are equipped with the PW4098.

Korean Air was the only airline to order the PW4098 due to the mishap that PW had with the engine and as a result, they are the only airline to operate the engine. I think that they've even got better power to weight ratios than the 772LR or the 77W.
PARIS, FRANCE...THE BEIRUT OF EUROPE.
 
adriaticus
Posts: 989
Joined: Thu May 06, 2004 3:29 pm

RE: Best Power To Weight Ratio?

Tue Nov 29, 2005 10:02 pm

(1) B752
(2) MD-87
(3) B712

That simple...

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A300/18/19/20/21 B721/2 B732/3/G/8 B741/2/4 B752 B762/3/4 B772/3 DC8/9/10 MD11 TU134/154 IL62/86 An24 SA340/2000 E45/90
 
Tornado82
Posts: 4662
Joined: Thu May 26, 2005 10:19 am

RE: Best Power To Weight Ratio?

Tue Nov 29, 2005 10:59 pm

With someone mentioning the G-V, I'm sure others like the LJ45 and Citation X would totally beat the aforementioned airliners as well.
 
Arrow
Posts: 2325
Joined: Wed Jun 19, 2002 7:44 am

RE: Best Power To Weight Ratio?

Wed Nov 30, 2005 1:07 am

I read somewhere that the CRJ-700 competes well in this category; comparable to a 757.
Never let the facts get in the way of a good story.
 
TheSonntag
Posts: 4303
Joined: Wed Jun 15, 2005 7:23 pm

RE: Best Power To Weight Ratio?

Wed Nov 30, 2005 3:11 am

No airliners, but Eurofighter and F-22 raptor are certainly among the best airplanes in terms of thrust to weight ratio altogether.

On www.flightlevel350.com there is a cool video taken on a Varig MD11 flying from CDG to AMS. If I counted correctly, it took around 18seconds to take off. Try to watch it, it is really cool. I can confirm that empty Cargo MD11s taking off from CGN are real rockets...

EDIT: Check the link: http://www.flightlevel350.com/viewer.php?id=4498

[Edited 2005-11-29 19:15:08]
 
2enginesonly
Posts: 91
Joined: Mon Jun 13, 2005 11:08 pm

RE: Best Power To Weight Ratio?

Wed Nov 30, 2005 5:42 am

Quoting TheSonntag (Reply 9):
I can confirm that empty Cargo MD11s taking off from CGN are real rockets...

I agree with TheSonntag: 11 minutes from standstill to 36,000' with an empty cargo MD11 leaving Khartoum.  bigthumbsup 
I've also seen them climbing with 4200'/min with a full paxload......rockets indeed.

Arjan
 
eilennaei
Posts: 1003
Joined: Tue Nov 23, 2004 8:41 am

RE: Best Power To Weight Ratio?

Wed Nov 30, 2005 6:07 am

Quoting TheSonntag (Reply 9):
there is a cool video taken on a Varig MD11 flying from CDG to AMS.

The plane in the video, PP-VQI, is now OH-LGG, due to emerge from the AY maintenance hangar in late Dec.
 
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HAWK21M
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Joined: Fri Jan 05, 2001 10:05 pm

RE: Best Power To Weight Ratio?

Wed Nov 30, 2005 5:35 pm

I feel a B777 Empty.Although out here a few light AI B744s come close  Smile
regds
MEL
I may not win often, but I damn well never lose!!! ;)
 
SlamClick
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Joined: Sun Nov 23, 2003 7:09 am

RE: Best Power To Weight Ratio?

Thu Dec 01, 2005 8:13 am

Saturn V means never having to go to the performance charts.
Happiness is not seeing another trite Ste. Maarten photo all week long.

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