PPRuNe Forums - b737-400 Freighter performance

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nyaminyami

22nd Mar 2019 06:32

b737-400 Freighter performance

Hi all,

trying to determine the max cargo load a 737/3/4 freighter can lift out of a 2600 M strip at 5000" elevation with 10000kg fuel on board. As such, i'm trying to get my hands on some take off and landing performance graphs which are very hard to come by. Could anyone assist me in this regard or at least suggest who i should contact?

nyaminyami

24th Mar 2019 05:33

seriously? not even a nibble?

scroogee

24th Mar 2019 06:30

Airwork in New Zealand use 737-400 freighters

Uplinker

24th Mar 2019 10:05

The Boeing planning software I have cannot specify a runway elevation - I have to use an actual runway, but it would take me forever to go through the library of airfields to find one suitably high to run your calculation. (It doesn’t have Nairobi).

Best I can offer in the time available is :

737-400, ZFW 32700 kg
Runway elevation 2316’
TORA 2400m
10kt headwind
15 deg C
1013 mB

Max take-off weight under these conditions = 59700 kg
So max payload possible will be 59700 - 32700 - 10000 = 17000 kg.

Hope this helps.

TFE731

24th Mar 2019 10:29

I have the same issues as Uplinker, if you can name the airport and runway in mind I may be able to help.

Johnny F@rt Pants

24th Mar 2019 17:06

There are too many other variables to be able to give an answer, eg, are there any obstacles, is the runway uphill or downhill, it will also vary with the temperature, QNH and wind direction.

scroogee

24th Mar 2019 22:09

Using Uplinkers' ZFW info but with a pressure altitude of 6000', dry runway, OAT of 26 degrees C, no wind and TO flap 5, 23.5K engines, gives a MTOW at 54,000kg (Climb limit of 55,600kg), so payload of 11,300kg.

As Johnny says- you need more detail for better answers.

nyaminyami

25th Mar 2019 08:00

Guys, very grateful for the feedback. Going to PM you guys actual airport

Johnny F@rt Pants

25th Mar 2019 10:52

Quote:

Going to PM you guys actual airport

But the answer will still be a variable dependent on the conditions on the day/night.

B2N2	25th Mar 2019 11:54

Not too mention it’s a scary question to begin with.
If you’re currently flying a 73 you should have the performance tables available to you.

Uplinker

25th Mar 2019 12:00

I don’t think they fly. I think they are deciding which freighter can do the job they have.

flyfan

25th Mar 2019 21:25

Or maybe it‘s simply a question out of interest...can‘t find the post in which he says that he‘s flying the 737...

B2N2	29th Mar 2019 00:34

Quote:

Originally Posted by flyfan (Post 10429700)

Or maybe it‘s simply a question out of interest...can‘t find the post in which he says that he‘s flying the 737...

well quick check of his posting history

https://www.pprune.org/professional-...ml#post4324404

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