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737 Climb Performance

Mon May 07, 2007 11:19 pm

Yesterday (May 6, approximately 12:15 local time) I watched a Westjet 737 climbing out of Thunder Bay from runway 07. I was a bit concerned at the climb out for 2 main reasons:
1/ The climb was extremely shallow, closer to the sink rate when on approach.
2/ That 737 was smoking something bad from the starboard engine, yet it didn't appear to be turning around to return with some type of engine trouble.

I can't think of any reason for the shallow climb out, as there was no other air traffic in the area I could see to be avoided.

Any thoughts on this?

Eagles may soar, but weasels don't get sucked into jet engines.
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RE: 737 Climb Performance

Tue May 08, 2007 12:25 am

1) I think it was probably Very close to MTOW

2) Maybe the oil was topped up at the turnaround or the aircraft had been in maintenance so there was residue oil sitting in the engine.

Rgds --James00
You cant have your cake and eat it... What the hells the point in having it then!!!
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RE: 737 Climb Performance

Tue May 08, 2007 8:33 am

Remember too that they wouldn't turn back instantly in the case of an engine failure. Unless there was some pressing reason (for example the airplane is on fire), they'd fly off to evaluate the situation and burn/dump fuel, and only then make a calm single engine landing.
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RE: 737 Climb Performance

Tue May 08, 2007 8:40 am

if there isn't a fire, we usually follow the SID pattern in an engine failure, if not the engine out SID, if there is a fire you try to do immediate return pattern procedures on the downwind....

stuff always comes out the engine, im sure it was a derate/assumed temp climb to save engine life
OR sometimes we climb super shallow incase we have super old engines and we want the EGT to stay within limits  Wink
The only time there is too much fuel onboard, is when you're on fire!
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RE: 737 Climb Performance

Tue May 08, 2007 3:28 pm

Noise regulations may have kept the thrust down for part of the flight. Noise regulations create all sorts of strange flight profiles.

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