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PostPosted: Sun Apr 22, 2012 4:47 pm 
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So Chris, just out of curiousity, what are you using as your standard climb power settings when you fly this aircraft? Same as me?

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PostPosted: Sun Apr 22, 2012 10:10 pm 
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Yeah, I use the KC-97 climb power settings. I've always used the multi-stage climb profile as that's what I've always been used to, even flying just a little Cessna 182.

Also, one note on the power reduction and then increase on the United manual - the reduction is for noise abatement and cooling. Until the plane gets "cleaned up" where they can accelerate, the power reduction serves to slightly reduce the noise for people on the departure path (UAL flew out of airports that even then were very heavily built-up around) and not put as much heat in to the engines at low altitude while the flaps and gear were retracted. They also leveled off during this climb segment, so it's not like they were getting behind the power curve. Once the gear and flaps were up, power was advanced and climb resumed.

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PostPosted: Mon Apr 23, 2012 1:47 pm 
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CAPFlyer wrote:

Also, one note on the power reduction and then increase on the United manual - the reduction is for noise abatement and cooling. Until the plane gets "cleaned up" where they can accelerate, the power reduction serves to slightly reduce the noise for people on the departure path (UAL flew out of airports that even then were very heavily built-up around) and not put as much heat in to the engines at low altitude while the flaps and gear were retracted. They also leveled off during this climb segment, so it's not like they were getting behind the power curve. Once the gear and flaps were up, power was advanced and climb resumed.


Thanks for the explanation. It struck me as somewhat strange that their lowest power setting of the departure sequence would coincide with the time that they are also the slowest, lowest, and dirtiest.

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PostPosted: Sun Apr 29, 2012 4:59 am 
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Lyonsdan wrote:
Yes I agree a CONSTANT no gust wind does not effect airspeed. Judging off of previous flights I believe it was wind sheer. Going from a 50kt tailwind to a 20kt tail wind will cause a major flux in airspeed. This is what I contribute to the stall. As the autopilot was on I hit wind sheer and I simply didn't have enough power to compensate for the sudden and rapid altitude and airspeed loss. Hence the stall. Yes behind the power curve was taken care of. I've done this flight 15-20 times now and I was there when this has happened. On this flight I was asleep and auto was flying.

If I am correct the mgw is 147000. And the max ceiling is 31k. Though I may be wrong about the service ceiling I am almost positive I'm right about the weight. I routinely operate at 146000.


You can't have the max weight at the max ceiling. you have to select your flight level according to your actual weight.

According to the boeing charts that I have, the max ceiling of 33 000 ft can only be reached for a max weight of 90 000 lbs. For 27 000 ft, the max weight is app 128 000 lbs.
I hope this helps
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