Antonov 124 lack of power?

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Antonov 124 lack of power?

Postby Nessim » Mon Jun 09, 2008 4:13 am

I like heavy transports, want to simulate a real flight between Denver Intl. to Vandenberg AFB (CA) carrying Atlas rocket boosters, whith the Thoma's Ruth Antonov 124 freeware.
Load the plane with 75.000 kg + fuel, both below the max TO weigth.
You can imagine the problem: The airplane doesn't lift, she reach 175+ knots at runway's end and do not take off.

Trying too with flaps in poss. 1, 2, no flaps,...
I trying in Los Angeles Intnl. (thinking Denver is a little high) and the same results. Seems lack of power.

These are long (or normal) runways, no?

Some idea?

Thank for reading my confession.
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Re: Antonov 124 lack of power?

Postby Groundbound1 » Mon Jun 09, 2008 8:38 am

It shouldn't be a lack of power, if you're able to get it to "175+ knots ".
Try some up trim on the elevator. (might need alot of it)
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Re: Antonov 124 lack of power?

Postby Sean_TK » Mon Jun 09, 2008 12:00 pm

Beyond any temperature and density altitude issues, as groundbound stated, you may need to put in some stabilizer trim prior to rotation. (Probably something between 3 and 5 degrees...)
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Re: Antonov 124 lack of power?

Postby Nessim » Mon Jun 09, 2008 2:45 pm

Thanks a lot for answer me.

I
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Re: Antonov 124 lack of power?

Postby beaky » Mon Jun 09, 2008 9:13 pm

Are you using the autopilot?
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Re: Antonov 124 lack of power?

Postby Nessim » Tue Jun 10, 2008 4:36 am

No, no autopilot in takeoff. I even change the panel into a standar 747. Same result.

The problem seems to be inacurated config files, to me. I'm not sure what version works well, since this aircraft have many (some)repaints/versions above the Ruth textures. The panels ain't very good too (Sorry and thanks for the people who made it).

I transfered the cargo in a Cargolux 747-400 F (Opensky) - a lot of time and money lost- ;)
Last edited by Nessim on Tue Jun 10, 2008 4:39 am, edited 1 time in total.
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Re: Antonov 124 lack of power?

Postby dave3cu » Tue Jun 10, 2008 7:41 am

The problem appears to be in the FDE, modified default 747 .cfg and .air files.

I've done some .cfg tinkering with the [weight_and_balance], [TurbineEngineData] and others, and although it's better it's still a struggle to get up at 75% MTOW at MSL.

Probably requires someone with more knowlege in such things to straighten it out.  

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Re: Antonov 124 lack of power?

Postby Harold » Wed Jun 11, 2008 2:53 am

Although I'm not a virtual aircraft engineer and I'm not sure this will fix the problem, you might want to give AirWrench a try to fix the problem ...
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