RoseFlyer From United States of America, joined Feb 2004, 9154 posts, RR: 52 Reply 2, posted (8 years 1 week 1 day 1 hour ago) and read 1547 times:
I don't know what the letters for 727s stand for, but letters following the type of airplane usually refer to what optional safety equipment that the plane has installed in it. This can be anything from navigational aids to emergency equipment. I believe the letters you said have to do with communication.
[Edited 2005-12-03 16:55:37]
If you have never designed an airplane part before, let the real designers do the work!
Goldenshield From United States of America, joined Jan 2001, 5642 posts, RR: 15 Reply 3, posted (8 years 1 week 1 day 1 hour ago) and read 1528 times:
From the FAA:
/X No transponder
/T Transponder with no Mode C
/U Transponder with Mode C
/D No transponder
/B Transponder with no Mode C
/A Transponder with Mode C
/M No transponder
/N Transponder with no Mode C
/P Transponder with Mode C
AREA NAVIGATION (RNAV)
/Y LORAN, VOR/DME, or INS with no transponder
/C LORAN, VOR/DME, or INS, transponder with no Mode C
/I LORAN, VOR/DME, or INS, transponder with Mode C
ADVANCED RNAV WITH TRANSPONDER AND MODE C (If an aircraft is unable to operate with a transponder and/or Mode C, it will revert to the appropriate code listed above under Area Navigation.)
/E Flight Management System (FMS) with DME/DME and IRU position updating
/F Flight Management System (FMS) with DME/DME position updating
/G Global Navigation Satellite System (GNSS), including GPS or WAAS, with enroute and terminal capability.
/R Required Navigational Performance. The aircraft meets the RNP type prescribed for the route segment(s), route(s) and/or area concerned.
Reduced Vertical Separation Minimum (RVSM). Prior to conducting RVSM operations within the U.S., the operator must obtain authorization from the FAA or from the responsible authority, as appropriate.
/J /E with RVSM
/K /F with RVSM
/L /G with RVSM
/Q /R with RVSM
/W /A with RVSM
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