Simviation Forum - Suicidal Autopilot

Feb 15^th, 2008 at 3:17pm

Ijineda Offline
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Vienna, Austria

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Following problem: as soon as I activate the Altitude button of any autopilot (be it in a cessna or in a 747), the plane pitches nose down in a suicidal dive which results in a crash if the autopilot is not deactivated. HDG and Speed work fine.

please help me out, it´ s impossible for me not to use my AP on longhaul flights!

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Reply #1 - Feb 15^th, 2008 at 3:42pm

Wii Offline
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Have you set the correct altitude for it before you activate it?

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Reply #2 - Feb 15^th, 2008 at 3:46pm

aussiewannabe Offline
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Wii wrote on Feb 15^th, 2008 at 3:42pm:

Have you set the correct altitude for it before you activate it?

I'll add to that: Did you also set your rate of climb before activating it?

Since you're flying longhaul, also check to see if your NAV/GPS button is set correctly.

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Reply #3 - Feb 15^th, 2008 at 7:24pm

Ijineda Offline
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yep, everything is set correctly. But I found out why this happened: a button of my joystick got stuck; this button happens to be attributed to "change trim forward". Anyway, I still have no idea why it only starts when the AP-altitude is activated.

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Reply #4 - Feb 15^th, 2008 at 7:33pm

Mazza Offline
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Ijineda wrote on Feb 15^th, 2008 at 7:24pm:

yep, everything is set correctly. But I found out why this happened: a button of my joystick got stuck; this button happens to be attributed to "change trim forward". Anyway, I still have no idea why it only starts when the AP-altitude is activated.

do you have a button for master auto pilot, if so is it near your trim button?

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Reply #5 - Feb 15^th, 2008 at 7:34pm

Ijineda Offline
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Vienna, Austria

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Mazza wrote on Feb 15^th, 2008 at 7:33pm:

Ijineda wrote on Feb 15^th, 2008 at 7:24pm:

yep, everything is set correctly. But I found out why this happened: a button of my joystick got stuck; this button happens to be attributed to "change trim forward". Anyway, I still have no idea why it only starts when the AP-altitude is activated.

do you have a button for master auto pilot, if so is it near your trim button?

Yes I have, it´s right from my trim button...

Intel Quad Core 2 Extreme Q6600 @ 2.60GHz - Radeon HD 4850 - P5N-D - 4 GB RAM

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Reply #6 - Feb 15^th, 2008 at 7:36pm

Mazza Offline
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Ijineda wrote on Feb 15^th, 2008 at 7:34pm:

Mazza wrote on Feb 15^th, 2008 at 7:33pm:

Ijineda wrote on Feb 15^th, 2008 at 7:24pm:

yep, everything is set correctly. But I found out why this happened: a button of my joystick got stuck; this button happens to be attributed to "change trim forward". Anyway, I still have no idea why it only starts when the AP-altitude is activated.

do you have a button for master auto pilot, if so is it near your trim button?

Yes I have, it´s right from my trim button...

then you might be hitting it as Cheesy

well

Sunset Chasing...RULES

AMD 9550 2.43 X4 - 2Gb RAM 800Mhz DDRII - Asus 4670
Corsair TX-750W

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