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Engines a little overpowered? (Read 1817 times)

spence Full Member Offline Posts: 40 Joined: Dec 26^th, 2011 Gender:	Engines a little overpowered? Jan 27^th, 2020 at 1:59pm	Print Post
	I have noticed the 757 seems slightly overpowered. A full load of passengers and cargo and the aircraft is still climbing at 3500-4000fpm through almost the entire climb. I know the 757 has a ton of power, but from the research I have done it is not typical to see those climb rates throughout the entire climb. Maybe this can be looked at in the future. Thanks!


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trevors Senior Member Offline Posts: 324 Joined: Feb 26^th, 2016	Re: Engines a little overpowered? Reply #1 - Jan 27^th, 2020 at 2:23pm	Print Post
	Search the 757 general forum for my PW and RR revised flight dynamics

	Trevor
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spence Full Member Offline Posts: 40 Joined: Dec 26^th, 2011 Gender:	Re: Engines a little overpowered? Reply #2 - Jan 28^th, 2020 at 4:00am	Print Post
	Okay will do thanks.


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Angel of Attack Full Member Offline Posts: 249 Joined: Dec 15^th, 2019	Re: Engines a little overpowered? Reply #3 - Jan 28^th, 2020 at 4:53am	Print Post
	trevors wrote on Jan 27^th, 2020 at 2:23pm: Search the 757 general forum for my PW and RR revised flight dynamics Hi Trevor I wonder if it still works for 1.5.0.1 I too noticed a very far difference of cruing EPR and Fuel flow figure from the realword FPPM data for PW2037, right now I run fuel_flow_scalar=0.9 to match the over all trip fuel consumption, but that still not line up well when curing at different altitude. While I had done such aero tweaks for FeelthereEjet,737CL,and PSS757 it's still a very painfully long job to do.


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trevors Senior Member Offline Posts: 324 Joined: Feb 26^th, 2016	Re: Engines a little overpowered? Reply #4 - Jan 28^th, 2020 at 7:58pm	Print Post
	My flight dynamics are only for the PW2040. As far as EPR readouts are concerned, that is hard-coded and cannot be corrected much by tweaking FD. However, the fuel flow is correct.

	Trevor
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Captain Sim CS Team Offline Posts: 4236 Joined: Nov 7^th, 2005	Re: Engines a little overpowered? Reply #5 - Jan 29^th, 2020 at 4:06pm	Print Post
	spence wrote on Jan 27^th, 2020 at 1:59pm: I have noticed the 757 seems slightly overpowered. A full load of passengers and cargo and the aircraft is still climbing at 3500-4000fpm through almost the entire climb. I know the 757 has a ton of power, but from the research I have done Why do you think it's slightly overpowered? I THINK it's slightly underpowered. My dog THINKS it's perfect May we see the research materials pls?

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Captain Sim CS Team Offline Posts: 4236 Joined: Nov 7^th, 2005	Re: Engines a little overpowered? Reply #6 - Jan 29^th, 2020 at 4:08pm	Print Post
	Angel of Attack wrote on Jan 28^th, 2020 at 4:53am: cruing EPR and Fuel flow figure from the realword FPPM data for PW2037 May we see the data pls?

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silverheels Full Member Offline Posts: 27 Joined: Jun 24^th, 2019	Re: Engines a little overpowered? Reply #7 - Jan 29^th, 2020 at 11:14pm	Print Post
	Captain Sim wrote on Jan 29^th, 2020 at 4:06pm: spence wrote on Jan 27^th, 2020 at 1:59pm: I have noticed the 757 seems slightly overpowered. A full load of passengers and cargo and the aircraft is still climbing at 3500-4000fpm through almost the entire climb. I know the 757 has a ton of power, but from the research I have done Why do you think it's slightly overpowered? I THINK it's slightly underpowered. My dog THINKS it's perfect May we see the research materials pls? What breed do you have? I have one golden and one mini LH Dachsy...


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Captain Sim CS Team Offline Posts: 4236 Joined: Nov 7^th, 2005	Re: Engines a little overpowered? Reply #8 - Jan 30^th, 2020 at 3:20pm	Print Post
	silverheels wrote on Jan 29^th, 2020 at 11:14pm: What breed do you have? Shih-tzu, and he insists the thrust is spot on, unless PROVEN opposite.

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Captain Sim CS Team Offline Posts: 4236 Joined: Nov 7^th, 2005	Re: Engines a little overpowered? Reply #9 - Jan 30^th, 2020 at 3:38pm	Print Post
	Angel of Attack wrote on Jan 28^th, 2020 at 4:53am: realword FPPM data What particular parameters and when exactly they do not match the 757 model? Which means a lot of the 757 screenshots compared to the real performance tables, with each out of limit parameter marked red. Moreover aircraft and conditions must be right, and that must be obvious from the screenshots and comments.

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