Simviation Forum - Auto-Setting Trim Tabs

Nov 14^th, 2003 at 6:57pm

Aspiring pilot Offline
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I have a problem with several aircraft with auto-setting trim tabs. Whenever I try to climb or dive, the tabs quickly move themselves up or down, depending on whether I go up or down. What canI do about this?

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Reply #1 - Nov 15^th, 2003 at 7:07am

packercolinl Offline
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Did you disengage autopilot?

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Reply #2 - Nov 15^th, 2003 at 7:34am

Fozzer Offline
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An elderly FS 2004 addict!
Hereford. England. EGBS.

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Quite right, Packer... Wink

...!
You manually adjust the trim tabs for straight and level flight with "Autopilot" off.
With Autopilot on you have to dial up the required altitude on the radios before selecting "Autopilot".
The plane will then fly at the desired hight, and automatically adjust the trim tabs to maintain that height.

Cheers... Grin

...!
Paul.

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Reply #3 - Nov 15^th, 2003 at 11:05am

Aspiring pilot Offline
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No, the autopilot is off. The tabs move all the way up or down when I move up or down. I rarely ever use the auto pilot, and when I do, I usually don't have it set right, so I turn it off.

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Reply #4 - Nov 15^th, 2003 at 12:42pm

Fozzer Offline
Colonel
An elderly FS 2004 addict!
Hereford. England. EGBS.

Posts: 24861

Quote:

No, the autopilot is off. The tabs move all the way up or down when I move up or down. I rarely ever use the auto pilot, and when I do, I usually don't have it set right, so I turn it off.

Hi ....pilot
What plane are you training in?
A Boeing 747 or a Cessna C152/172 trainer?
You should have no problems practicing with the trainer, including experimenting with the radios... Roll Eyes

...!
...more details...?

Cheers mate... Grin

...!
Paul.

Dell Dimension 5000 BTX Tower. Win7 Home Edition, 32 Bit. Intel Pentium 4, dual 2.8 GHz. 2.5GB RAM, nVidia GF 9500GT 1GB. SATA 500GB + 80GB. Philips 17" LCD Monitor. Micronet ADSL Modem only. Saitek Cyborg Evo Force. FS 2004 + FSX. Briggs and Stratton Petrol Lawn Mower...Motor Bikes. Gas Cooker... and lots of musical instruments!.... ...!
Yamaha MO6,MM6,DX7,DX11,DX21,DX100,MK100,EMT10,PSR400,PSS780,Roland GW-8L v2,TR505,Casio MT-205,Korg CX3v2 dual manual,+ Leslie 760,M-Audio Prokeys88,KeyRig,Cubase,Keyfax4,Guitars,Orchestral,Baroque,Renaissance,Medieval Instruments.

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Reply #5 - Nov 15^th, 2003 at 5:38pm

dave3cu Offline
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Procrastinate now, don't
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3CU, Northern Wisconsin, USA

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Posts: 3077

Hi Aspireing..

I cud never get used to those auto-trim tabs either, so wud remove them....Some planes installation instructions tell you how to disable auto-trim if you wish.

If your familiar with editing the panel.cfg file it's easily fixed.

Some have an 'autotrim.gau'(example) in addition to a 'normaltrim.gau' (example) that adds the auto function to the standard trim gauge. You can remove or comment out the offending line. This will allow the 'gaugexx=normaltrim' (example) trim gauge to function manually.

Others use a trim gauge with the 'auto' built in. This you
can replace with a trim from another panel.

As always, back up any file before you edit it.

If your not familiar with editing the panel.cfg file, post the name of a plane or 2 and I can have a look at them.

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

You know....you can just rip up a to-do list.

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