Simviation Forum - altitude question

Feb 22^nd, 2012 at 2:56pm

southwestairlines2487 Offline
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how come i can not go above 15,000 feet without stalling out,o im in a 737-700 aircraft.

« Last Edit: Feb 22^nd, 2012 at 6:29pm by southwestairlines2487 »

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Reply #1 - Feb 22^nd, 2012 at 4:09pm

Daube Offline
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There might be several reasons, but the best one might be structural icing. Did you turn your anti-ice systems ON ?

Got bloom ?
Got mountains ?
Got damage ?

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Reply #2 - Feb 22^nd, 2012 at 5:43pm

DaveSims Offline
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How fast are you traveling?

Check your the settings for the airspeed reading, located in the realism settings. Is it using True Air Speed, or Indicated Air Speed? It should be using Indicated Air Speed.

How heavy is the aircraft loaded, if the aircraft is too heavy, it will not climb either.

Dave

www.flymcw.com

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Reply #3 - Feb 22^nd, 2012 at 6:29pm

southwestairlines2487 Offline
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Daube wrote on Feb 22^nd, 2012 at 4:09pm:

There might be several reasons, but the best one might be structural icing. Did you turn your anti-ice systems ON ?

Yes Sir.

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Reply #4 - Feb 22^nd, 2012 at 6:31pm

southwestairlines2487 Offline
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DaveSims wrote on Feb 22^nd, 2012 at 5:43pm:

How fast are you traveling?

Check your the settings for the airspeed reading, located in the realism settings. Is it using True Air Speed, or Indicated Air Speed? It should be using Indicated Air Speed.

How heavy is the aircraft loaded, if the aircraft is too heavy, it will not climb either.

yes on the first one its using indicated air speed,well im using fspassenger's,usually its 100% for the weight with 112 passengers,i can climb just not over 15,000 feet.

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Reply #5 - Feb 22^nd, 2012 at 9:02pm

BlackAce Offline
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Firstly, who MADE your plane?

Lenovo Y570: Intel Core i7-2670QM Processor( 2.2GHz 1333MHz 6MB) Nvidia 555M graphics, 8GB Memory/RAM 1TB of space

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Reply #6 - Feb 22^nd, 2012 at 9:30pm

JoBee Offline
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Excessive rate of climb?

Don't argue with idiots, they drag you down to their level and beat you with experience.

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Reply #7 - Feb 22^nd, 2012 at 9:43pm

Rocket_Bird Offline
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southwestairlines2487 wrote on Feb 22^nd, 2012 at 6:31pm:

DaveSims wrote on Feb 22^nd, 2012 at 5:43pm:

How fast are you traveling?

Check your the settings for the airspeed reading, located in the realism settings. Is it using True Air Speed, or Indicated Air Speed? It should be using Indicated Air Speed.

How heavy is the aircraft loaded, if the aircraft is too heavy, it will not climb either.

yes on the first one its using indicated air speed,well im using fspassenger's,usually its 100% for the weight with 112 passengers,i can climb just not over 15,000 feet.

You shouldn't be at 100% weight with only 112 passengers (real world 737-700s can carry about 136 depending on configuration and still have room to spare). Your aircraft is likely overloaded, either with cargo/baggage/misc weight, or fuel.

Airliners carry enough fuel for what they need to get to their intended destination and rarely carry 100% except for long hauls. Also, despite how heavy baggage and cargo can get, you can stuff those baggage compartments and quite often, it will still not be over 100%.

Check your fuel, make sure your not carrying too much. And check all the other weights on your aircraft, making sure nothing is holding you back.

Cheers,
RB

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Reply #8 - Feb 22^nd, 2012 at 9:58pm

Dave71k Ex Member

Here's a simple test.

Set your fuel to 30% and set payload to 0 then see how high you can get. If you get above 15,000ft then your problem is over loading the aircraft. If you still can't get over 15,000ft with the aircraft load set to what I said then there's another problem going on somewhere.

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Reply #9 - Feb 23^rd, 2012 at 1:16am

southwestairlines2487 Offline
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BlackAce wrote on Feb 22^nd, 2012 at 9:02pm:

Firstly, who MADE your plane?

FSX/FS2004 Boeing 737-700 Southwest Airlines New Colors (Category: FSX > Civil Jets)

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Reply #10 - Feb 23^rd, 2012 at 1:18am

southwestairlines2487 Offline
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JoBee wrote on Feb 22^nd, 2012 at 9:30pm:

Excessive rate of climb?

no sir

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Reply #11 - Feb 23^rd, 2012 at 1:20am

southwestairlines2487 Offline
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Quote:

Here's a simple test.

Set your fuel to 30% and set payload to 0 then see how high you can get. If you get above 15,000ft then your problem is over loading the aircraft. If you still can't get over 15,000ft with the aircraft load set to what I said then there's another problem going on somewhere.

will try that on a nother note,152280 is total weight with aircraft at 97% full

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Reply #12 - Feb 23^rd, 2012 at 11:29am

dave3cu Offline
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From your description I installed this one http://simviation.com/1/search?submit=1&keywords=1phswa737.zip&categoryId=&filen...

TOW at 153000: had no problem climbing thru 15000' (AP at 250 kias, 3000 fpm vs). Had to step down vs above 23000', climbing to 30000', to maintain proper AoA. Eventually climbed to 45,200ft/13,700m with weight down to 141,000.

So I don't see any problems with the performance.....

I apologize if this sounds like a stupid question, but have to ask (as I've done it Cheesy

)....are your Settings>General>Units set to US (ft.) and not Metric (m)?

« Last Edit: Feb 23^rd, 2012 at 12:44pm by dave3cu »

At that time [1909] the chief engineer was almost always the chief test pilot as well. That had the fortunate result of eliminating poor engineering early in aviation. Igor Sikorsky

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Reply #13 - Feb 24^th, 2012 at 12:47am

southwestairlines2487 Offline
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dave3cu wrote on Feb 23^rd, 2012 at 11:29am:

From your description I installed this one http://simviation.com/1/search?submit=1&keywords=1phswa737.zip&categoryId=&filen...

TOW at 153000: had no problem climbing thru 15000' (AP at 250 kias, 3000 fpm vs). Had to step down vs above 23000', climbing to 30000', to maintain proper AoA. Eventually climbed to 45,200ft/13,700m with weight down to 141,000.

So I don't see any problems with the performance.....

I apologize if this sounds like a stupid question, but have to ask (as I've done it Cheesy

)....are your Settings>General>Units set to US (ft.) and not Metric (m)?

ok thank you,yes on your question.

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