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shon7
22nd Mar 2002, 06:13
Did the 747-100/200 have a FMS/FMC? How was it different than the ones in the 47-400s?

mutt
22nd Mar 2002, 07:16
Most of them have an old fashioned PPS or PMS, but some airlines have retrofitted FMS's. . .. .Mutt

tinyrice
22nd Mar 2002, 08:29
The 747-100 and early -7F models of the 747-200 didn't have anything except the autopilots and a very Mark 1 Autothrottle. The later -7Q and -7r powered 747-200/300's had a Performance Management System (PMS) retrofit that worked OK if the EPR and CADC interfaces were working as published.

Flight Detent
22nd Mar 2002, 09:39
Hi all,. .We have some -200 freighters (RR D4s), fitted with FMS!. .Cheers.

shon7
23rd Mar 2002, 03:08
PMS would just measure performance, how about flying to waypoints, navaids- was everything done manually?. .. .Also what about approaches, could you do a coupled approach or not?

twistedenginestarter
23rd Mar 2002, 03:34
The approach is managed by the autopilots not the FMC.

twistedenginestarter
23rd Mar 2002, 03:41
Sorry, as regards navigation, typically classics have INS so you can enter your waypoints into this and then slave the autopilot to it.

shon7
23rd Mar 2002, 22:28
Thanks for the reply twistedenginestarter. I had it all wrong about the FMS. I just assumed some things like the coupled approaches - but as my coach would say, "Never assume because it makes an ass out of U and ME."

olivasnooze
24th Mar 2002, 05:12
The classic 2/300's I fly don't have a PMS or FMC. Just the good old carousel IV INS.. . This highly advanced unit has some desirable features, like built in track offset.

Flight Detent
25th Mar 2002, 14:56
Yes, but unfortunately, you have to also type in EVERY single waypoint, with a maximum of 9 each time.. .In this day and age, with aircraft flying at Mach .86, but that's another story, we still have flight plans with under 10 minutes between waypoints, in a relatively straight line, where the local ATC want us to report, I really can't imagine why, with estimates given for each one well in advance, ahh, am I talking about Indian airspace again, silly me!. .With the capability of only 9 waypoints, it certainly keeps you busy.. .Cheers!