Do different airlines adopt different take off procedures? In PMDG's tutorial 1, Ryan instructed to turn on both vnav, rnav and one CMD prior to the take off roll. Is that the real procedure in all airlines, or some airlines use to turn the CMD on only at some high?

Edited March 1, 201214 yr by Lemond23

Airlines do have different SOPs than other airlines. Though they differ, they are safe and legal.Some airlines don't use the autopilot below 1000 feet AGL. Some use HDG SEL and VNAV on takeoff. As I said it just depends on SOP.

Yes and no.While some airlines have policies governing the use of the autopilot (some say turn on ASAP, some just by a certain altitude. FAA rules require AP use above FL290 for RVSM compliance)As far as arming LNAV/VNAV prior to takeoff, that has more to do with the departure procedure you're using. If it's an RNAV departure where you navigate on your own to the first waypoint, then yes. If it's a vectored departure that requires you to fly a certain heading after departure (see the LOOP6 at KLAX for example) then you'd use Heading Select mode until ATC instructs you to proceed direct to the first waypoint (the LAX VOR in this case)Link to LOOP6 chart: http://aeronav.faa.g...2/00237LOOP.PDFNote that the dotted lines represent the lost comms procedure, not what you're supposed to do normally.

Edited March 1, 201214 yr by Steven_Caffey

Do different airlines adopt different take off procedures? In PMDG's tutorial 1, Ryan instructed to turn on both vnav, rnav and one CMD prior to the take off roll. Is that the real procedure in all airlines, or some airlines use to turn the CMD on only at some high?

CMD prior to TO?

CMD prior to TO?

Actually, I missed that in the OP. Is that even possible? I don't think it is.. Have a closer look at the tutorial, it does not say to press CMD on the ground.

Passing 400 feet (look at the radio altimeter readout at thebottom of the PFD) press CMD A on the right side of the MCPto engage the autopilot.

- Page 59 of the tutorial

Edited March 1, 201214 yr by Steven_Caffey

Actually, I missed that in the OP. Is that even possible? I don't think it is.. Have a closer look at the tutorial, it does not say to press CMD on the ground. - Page 59 of the tutorial

It is possible, but so is retracting the landing gear.

It is possible, but so is retracting the landing gear.

Useful on the ground if the airstairs are not fitted!!

This topic reminded me of the Air France 777 captain in Lagos who engaged the A/P instead of the A/T during the take off roll. They got a horrible surprise when they tried to rotate. Didn't know it was possible on the NGhttp://www.flightglobal.com/news/articles/faa-rejected-takeoffs-necessitate-boeing-777-software-change-339544/

It is possible, but so is retracting the landing gear.

Only if a fail-safe is broken surely? Or will selecting LG UP always start the retraction process if there is sufficient hydraulic pressure?

Only if a fail-safe is broken surely? Or will selecting LG UP always start the retraction process if there is sufficient hydraulic pressure?

If everything is working correctly moving the landing gear lever to the up position will not retract the gear. RW, that's just not a bet any pilot is willing to make. That would be a career-ender.When I first started flying retractable gear aircraft, my instructor gave me one piece of advice: "You can mess up any manuever in the book. You'll know it, I'll know, and we'll work on it. You forget to put the gear down before landing and by lunch everyone in the world will know it, and you'll never get rid of your new nickname: sparky."