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Aircraft Type Codes  
User currently offlineBruce From United States of America, joined May 1999, 5057 posts, RR: 15
Posted (8 years 10 months 4 weeks 1 day 18 hours ago) and read 6302 times:

Sometimes I see aircraft types listed with a letter at the end. What do these letters mean? Some examples: B752/J, DC10/W, B753/Q, CRJ2/K, GLF4/Q, B744/Q

And then there is letters before AND after: H/MD10/J


Bruce


Bruce Leibowitz - Jackson, MS (KJAN) - Canon 50D/100-400L IS lens
4 replies: All unread, jump to last
 
User currently offlineOPNLguy From , joined Dec 1969, posts, RR:
Reply 1, posted (8 years 10 months 4 weeks 1 day 15 hours ago) and read 6274 times:

The H/ prefix is to denote to the ATC folks that the aircraft is a "heavy" for wake turbulence purposes, and increase separation for any aircraft behind it. The B744 and B753 should also carry this, although the B752 may or may not, depending upon if it's a high-weight version that puts it over the 255,000 lb threshold for the "heavy" designation. It's a moot point, in a sense, since ATC (here in USA, can speak for elsewhere) treats -all- 757s as if they were "heavy" for wake. turbulence separation purposes.

The various /Q suffix and other examples tell ATC what kind of nav equipment the aircraft has onboard. A new table went into effect on 9/1/2005:

http://www.gofir.com/general/rvsm/aircraft_equipment_suffix.htm

[Edited 2005-10-29 20:15:48]

User currently offlineGoldenshield From United States of America, joined Jan 2001, 6039 posts, RR: 14
Reply 2, posted (8 years 10 months 4 weeks 1 day 14 hours ago) and read 6263 times:

We still file with T/, even though I've heard from various FSS people that it is no longer required. I'm not sure on their reasoning on this, but I comply, so whenever I have to manually file a flight, I just drop the T/.


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User currently offlineBruce From United States of America, joined May 1999, 5057 posts, RR: 15
Reply 3, posted (8 years 10 months 4 weeks 16 hours ago) and read 6212 times:

Ahhh...now it makes sense, seeing that list!

so a /W means a plane is authorized for RVSM airspace even though it does not have advanced RNAV, but a /J would mean that is is authorized for RVSM operation AND can do procedures that require DME?

bruce



Bruce Leibowitz - Jackson, MS (KJAN) - Canon 50D/100-400L IS lens
User currently offlineGoldenshield From United States of America, joined Jan 2001, 6039 posts, RR: 14
Reply 4, posted (8 years 10 months 4 weeks 15 hours ago) and read 6213 times:

Quoting Bruce (Reply 3):
but a /J would mean that is is authorized for RVSM operation AND can do procedures that require DME?

With /J, the FMS is updated by an IRU, and is supplemented by DME range from ground based navaids.

DME ranging needs two or more DME signals from either VORTACs or TACANs to get a position.

/K is FMS using DME ranging, but without an IRU.
/L is FMS using GPS ranging, but is backed up by DME.

All of the above can do RVSM.



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