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altitude not holding
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la_italiana



Joined: 09 Oct 2006
Posts: 9
Location: boston

Posted: Mon Oct 09, 2006 11:33 pm    Post subject: altitude not holding  

My altitude does not hold when I have my autopilot on. I take off, switch my AP on, press ALT, and put in my desiered alutitude in the altitude select window. The plane just goes down and does not rise at all. My throttle is full. It's with all of my planes, even the default ones. I tried re-installing and it did nothing.
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FDX260



Joined: 28 Jun 2006
Posts: 88

Posted: Mon Oct 09, 2006 11:39 pm    Post subject:  

Have you tried putting a climb speed in?
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la_italiana



Joined: 09 Oct 2006
Posts: 9
Location: boston

Posted: Mon Oct 09, 2006 11:43 pm    Post subject:  

Yeah, I put it at like 3,600 and it does nothing.
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heeshung



Joined: 07 Dec 2005
Posts: 549

Posted: Tue Oct 10, 2006 12:41 am    Post subject:  

The first thing that comes to mind right now is that you're putting "3600" in the wrong area. "3600" should go under "Vert Speed", and your desired altitude under "Altitude". Another mistake that's common is that people input the wrong number. Instead of 36,000 feet, people have accidentally put in 3,600.
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la_italiana



Joined: 09 Oct 2006
Posts: 9
Location: boston

Posted: Tue Oct 10, 2006 1:14 am    Post subject:  

ok say i put 38,000 feet. it goes to like 10,000 and then dips. and im putting the 3600 in the thing next to the seclect alitutde window
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Rock-Head



Joined: 03 Jun 2006
Posts: 193
Location: Colorado

Posted: Tue Oct 10, 2006 10:29 am    Post subject:  

Hello La_Italiana,

I have never had my AP not work. Please excuse me, you must be doing something wrong. 3600 ft. VS (vertical speed) is a very steep AOA (angle of attack) for most aircraft. (if you're going up anyway) Unless you're in a powerful jet, it's a stall waiting to happen. You said it's the same for all your aircraft. What switch are you using to turn your autopilot on? It's not always the same one for every a/c. In the 747 you have to hit CMD ALT. Then dial in your altitude. Actually, you should dial in your altitude first.

Please tell us exactly what you do when you turn your autopilot on. This will give us a better idea of how to help you.

I apologize if my questions are insulting. They are not ment to be so. We need to know what you're doing in order to help you. :)

P.S. It could also be a controler issue. In some games my joystick makes things move, even if I don't touch it at all. You might need to adjust the deadband on your joystick.

Rock-Head
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ricktobin



Joined: 21 Feb 2004
Posts: 1646
Location: Virginia Beach, Virgina USA (KNTU, KORF)

Posted: Tue Oct 10, 2006 10:38 am    Post subject:  

...and if you know how to take a screen shot, that might help us to figure out the problem.

Configure the AP just like you normally do and take a screen shot of it in the 2D view. Post it here and we'll take a look.
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la_italiana



Joined: 09 Oct 2006
Posts: 9
Location: boston

Posted: Tue Oct 10, 2006 7:38 pm    Post subject:  

Rock-Head wrote: Hello La_Italiana,

I have never had my AP not work. Please excuse me, you must be doing something wrong. 3600 ft. VS (vertical speed) is a very steep AOA (angle of attack) for most aircraft. (if you're going up anyway) Unless you're in a powerful jet, it's a stall waiting to happen. You said it's the same for all your aircraft. What switch are you using to turn your autopilot on? It's not always the same one for every a/c. In the 747 you have to hit CMD ALT. Then dial in your altitude. Actually, you should dial in your altitude first.

Please tell us exactly what you do when you turn your autopilot on. This will give us a better idea of how to help you.

I apologize if my questions are insulting. They are not ment to be so. We need to know what you're doing in order to help you. :)

P.S. It could also be a controler issue. In some games my joystick makes things move, even if I don't touch it at all. You might need to adjust the deadband on your joystick.

Rock-Head I was using 3,600 as an example. I'll do a short video of what I do and post a link on here to it.
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element1o10



Joined: 06 Aug 2006
Posts: 1

Posted: Tue Oct 10, 2006 8:21 pm    Post subject:  

http://youtube.com/watch?v=MB0jDk44DBo
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la_italiana



Joined: 09 Oct 2006
Posts: 9
Location: boston

Posted: Tue Oct 10, 2006 8:54 pm    Post subject:  

element1o10 wrote: http://youtube.com/watch?v=MB0jDk44DBo that was me
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pjholl



Joined: 12 Nov 2004
Posts: 141
Location: London

Posted: Tue Oct 10, 2006 9:47 pm    Post subject:  

Not enough resolution to see what you were doing. What speed are you doing at take off? Are you retracting your gear and flaps at the correct speeds? Test your trim using numpad 1 & 7 (without num lock on) before you put on AP to see what happens. Calibrate your joystick before you take off. And finally, set your speed to a minimum of 250Kts.

pj
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la_italiana



Joined: 09 Oct 2006
Posts: 9
Location: boston

Posted: Tue Oct 10, 2006 10:39 pm    Post subject:  

pjholl wrote: Not enough resolution to see what you were doing. What speed are you doing at take off? Are you retracting your gear and flaps at the correct speeds? Test your trim using numpad 1 & 7 (without num lock on) before you put on AP to see what happens. Calibrate your joystick before you take off. And finally, set your speed to a minimum of 250Kts.

pj click the button that makes it full screen
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la_italiana



Joined: 09 Oct 2006
Posts: 9
Location: boston

Posted: Tue Oct 10, 2006 10:42 pm    Post subject:  

la_italiana wrote: pjholl wrote: Not enough resolution to see what you were doing. What speed are you doing at take off? Are you retracting your gear and flaps at the correct speeds? Test your trim using numpad 1 & 7 (without num lock on) before you put on AP to see what happens. Calibrate your joystick before you take off. And finally, set your speed to a minimum of 250Kts.

pj click the button that makes it full screen oh, it doesnt make a difference.
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la_italiana



Joined: 09 Oct 2006
Posts: 9
Location: boston

Posted: Tue Oct 10, 2006 10:50 pm    Post subject:  

http://img275.imageshack.us/img275/868/clipboard02xs9.th.jpg
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pjholl



Joined: 12 Nov 2004
Posts: 141
Location: London

Posted: Wed Oct 11, 2006 9:53 am    Post subject:  

Apart from the fact that your going WAY too fast for 3,000ft, im lost. I really cannot see whats wrong.
Double check your trim manually, hold down the no: 1 button on the keypad and see if your plane climbs.

pj
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