Urbanex Posted May 15, 2011 Report Posted May 15, 2011 Hi all,I was following the tutorial and everything was going perfectly smoothly until I realised that instead of sticking to the 4500ft, my CRJ was climbing (reaching FL300)..., well that's only the first thing, bu then, I had the feeling that it was not following the route...F/D are on, AP is engaged, my alt button pressed, hdg 030 locked, then turning to 60° to intercept the route... But my issue is that he does not stick to the altitude I entered (and I can't find a alt intv button ) and yeah that is pretty much it...Am I doing sthg wrong?Thank you,Carlos
Cameron Posted May 15, 2011 Report Posted May 15, 2011 Carlos,1. Sounds like you do not have the alt pre-set correctly (please carefully follow the tutorial)2. Be sure you are selecting the correct nav source (also in the tutorial) for the route to follow. If you do not have the correct nav source selected, intercepting the route will do nothing but go right through it.
Urbanex Posted May 16, 2011 Author Report Posted May 16, 2011 Hi Cameron!Thanks for your reply, well even when trying to set an altitude without the FMC, it does not do it...F/D pressed, I press ALT and set the alt to 4500ft , at 1000ft, I engage the A/P but it still does not want to keep and maintain that altitude... :/
eaglewing7 Posted May 16, 2011 Report Posted May 16, 2011 Could it be that inadvertently you've set the target altitude to 45,000 feet, instead of 4500?
Urbanex Posted May 16, 2011 Author Report Posted May 16, 2011 Hey!No I don't think so :/this is take off:Uploaded with ImageShack.usthis is climb:Uploaded with ImageShack.usExpected cruise alt, but surprise, he keeps climbing:pUploaded with ImageShack.usHum... I am probably doing something wrong but I don't understand what... :/
eaglewing7 Posted May 16, 2011 Report Posted May 16, 2011 Have you tried climbing with the vertical speed mode? It looks like all you are doing is pitching up, and hitting the ALT button, which should work in theory, but for some reason I think you might be doing something else wrong...Are you sure that the Autopilot is actually engaged, and on the AUTO mode and not just ON?
Urbanex Posted May 16, 2011 Author Report Posted May 16, 2011 Hi Eaglewing7,Thanks for your reply, but how am I supposed to put it in Auto mode? :/
sthai Posted May 16, 2011 Report Posted May 16, 2011 Hi Urbanex,You are too fast! AC tries to maintain speed limitations by pulling up.Relax the throttle and all will be fine.Best regards,sthai
KAPTEJNLN Posted May 16, 2011 Report Posted May 16, 2011 Yep have also tryeid it if it gets to close caused by wind. A hint try to keep the speed 10 to 15 kt below overspeed then you would se that it follows your comand
woweezowee Posted May 16, 2011 Report Posted May 16, 2011 Hi Urbanex,You are too fast! AC tries to maintain speed limitations by pulling up.Relax the throttle and all will be fine.Best regards,sthaiThat's right. Speeding up happens very fast, I'm also still "fighting" against myself not monitoring the speed closely enough. Anybody has a setting that he eases the throttle back after takeoff? like.. 70, 85...? How you do it: Gear up flaps up first, then throttle, or otherwise?
Cameron Posted May 16, 2011 Report Posted May 16, 2011 As others have indicated, too high a speed will contribute to an oscillated climb above any altitude you've selected to be held.
Urbanex Posted May 16, 2011 Author Report Posted May 16, 2011 Okay,Thanks all for your advice, I will check if that works! Shall I press the Speed mode then, in order to monitor the speed? ;D
Japo32 Posted May 16, 2011 Report Posted May 16, 2011 Okay,Thanks all for your advice, I will check if that works! Shall I press the Speed mode then, in order to monitor the speed? ;DMmmmm Urbanex... has you read the documentation? If not, I suggest you read it before flying the plane, because that question about you should use speed for monitor speed......... mmmmm
Urbanex Posted May 16, 2011 Author Report Posted May 16, 2011 Japo32,Maybe I did not express myself properly, I mean, pushing the spd button to define a certain speed that the airplane will reach and stick to that speed.No? Carlos
woweezowee Posted May 16, 2011 Report Posted May 16, 2011 no . you manage the speed yourself*. the autopilot function is for climbs/descent. You set the speed, give or take power, and the plane will climb or sink in order to maintain that speed. But when it reaches the altitude you preselected, the spd mode will disengage (and the plane will accelerate or slow down again, depending on your throttle settings).in short: to avoid overspeeding, use your thottles wisely (still figuring that out myself. it is so much more difficult to control than the prop planes I am used to. soooo fast)* other planes/autopilots may have the function "ATHR" (auto-throttle). That will control the speed for you also in level flight.
Urbanex Posted May 16, 2011 Author Report Posted May 16, 2011 Oh well, my bad, he keeps the altitude if obviously I make him climb with VS, if not, well then he won't ha! >_<
Japo32 Posted May 16, 2011 Report Posted May 16, 2011 as said Carlos, please read the manuals.. it seems you don't know the plane.Y en castellano... Por favor lease los manuales, por que parece que no controla mucho el avión al creer que el speed mode era solo para mantener la velocidad. Es un modo vertical. Dependiendo de la velocidad y la fuerza que imprima a los throttles, entonces el avión cabeceará más o menos. Pero por favor, lease los manuales. Todo todito, todo está bien explicado allí y a creo que a nadie le gusta teclear dos veces lo mismo, que cuesta mucho esfuerzo.. si si solo fueran dos veces no habría problema, pero siendo unos cuantos los que lo podrían preguntar, pues como que me pasaría la vida respondiendo posts, y no trabajando.Gracias!
Urbanex Posted May 17, 2011 Author Report Posted May 17, 2011 Gracias Javier, pero no ablo español...! (I understood what you said though!)Thank you!Carlos
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