NOTE: Undergraduate student pilots may occasionally request revised clearances because they
normally are restricted to flight in visual flight rule (VFR) conditions.
Figure 1-4. Service Branch and Military Mission Prefixes.
c. Use the approved codes listed in the contractions handbook to indicate aircraft type. For VFR
and IFR operations, indicate the aircraft's radar transponder, distance measuring equipment (DME), or
area navigation (RNAV) capability by adding the appropriate symbol preceded by a slant as shown in
Figure 1-5. When forwarding this information, state the aircraft type followed by the word "slant" and
the appropriate phonetic letter equivalent of the suffix.
D-C SIX SLANT TANGO
F-EIGHT-E SLANT PAPA
F-FOUR-C SLANT NOVEMBER
SEVEN-OH-SEVEN SLANT ROMEO