Simviation Forum - AC engine characteristics

May 2^nd, 2004 at 12:41pm

Roberto Offline
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Lumpek

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How can I change the engine characteristics. I don't like how aircraft start taxying without adding any throttle or when you just barely move the throttle controll.

What is static thrust in aircrft.cfg? Is it maximum thrust or thrust at 0 throttle.

Thanx, ROBERTO

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Reply #1 - May 2^nd, 2004 at 2:26pm

ozzy72 Offline
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What kind of aircraft is it Roberto? Turboprop, jet etc...

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Reply #2 - May 2^nd, 2004 at 2:35pm

Nexus Offline
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If you increase the static thrust, you will make the engines stronger. Every engine is thrust rated off course. Static Thrust is measured at sea-level I believe (?).
At high altitudes the engines will lose efficiency, since approx 80% of the thrust is from the fan, and 20% from the core (CFM-56, source: 737NG cockpit companion)
High temps will also decrease engine thrust, that's why you'll see the engines as 'flat rated' to a certain temp:
Above that temp the engines will not be able to produce the given static thrust.

Okay I'm done Grin

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Reply #3 - May 3^rd, 2004 at 4:18pm

MattNW Offline
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Try this guage and see if that doesn't help: dhc6_sw!Taxispeed

You'll have to download the DeHavilland Twin Otter to get the guage but do that and edit the guage into your panel. It lets you set the speed the airplane is to taxi at after landing and turning off the parking brakes.

Changing the engine performance will make the plane fly different as well as taxi different and it won't be near as realistic flying that plane.

If you don't want to go to the trouble of editing the panel then you can adjust the prop controls. That will help taxiing somewhat. My bet is your having problems with the default King Air. It's notorious for aggressive taxiing. Grin

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Reply #4 - May 3^rd, 2004 at 8:02pm

racartron Offline
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All the turbo's crawl forward, albeit some faster than others. Usually y'all find the idle levers are set to the high position by default. Pulling 'em back to low while on the tarmac will help control the crawl.

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Reply #5 - May 4^th, 2004 at 2:38am

MattNW Offline
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Quote:

All the turbo's crawl forward, albeit some faster than others. Usually y'all find the idle levers are set to the high position by default. Pulling 'em back to low while on the tarmac will help control the crawl.

Yeah they all do it somewhat but that King Air will almost take off by it'self if you don't hold the brakes. Grin

In Memory of John Consterdine (FS Tipster)1962-2003

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Reply #6 - May 4^th, 2004 at 7:12pm

Billerator Offline
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I can never understand why the default aircraft that are made with precise data from the manufacturers are wrong. ???

Static thrust is the amount of thrust an engine can give ( full throttle ).

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Reply #7 - May 4^th, 2004 at 8:18pm

dave3cu Offline
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...............at sea level and bolted down.

Cheers,
Dave

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

I intend to live forever....so far, so good. Steven Wright

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Reply #8 - May 5^th, 2004 at 2:12pm

Roberto Offline
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Lumpek

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Quote:

I can never understand why the default aircraft that are made with precise data from the manufacturers are wrong. ???

Static thrust is the amount of thrust an engine can give ( full throttle ).

Good question!?!

One other comment! I also don't like how the engine just bursts out with power almost to full throttle when you start up. AND If you're in the cabin you don't hear the engines (barely) when on idle and when taxying!
I think that should be fixed!! OR is it possible to fix it in the sound.cfg !!?

Thanx guys for your coments!
Roberto

That's what I wanted to hear abt. static thrust!

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