| Suffix |
Equipment Capability |
NO DME |
| /X |
No transponder |
| /T |
Transponder with no Mode C |
| /U |
Transponder with Mode C |
DME |
| /D |
No transponder |
| /B |
Transponder with no Mode C |
| /A |
Transponder with Mode C |
TACAN ONLY |
| /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 |
FMS with DME/DME position updating |
| /G |
Global Navigation Satellite System (GNSS),
including GPS or Wide Area Augmentation System (WAAS),
with en route and terminal capability. |
| /R |
Required Navigational Performance (RNP).
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 |
RVSM |
