INSTRUMENT FLIGHT RULES WORKBOOK
AIRCRAFT CALL SIGN
AIRCRAFT DESIG AND
Figure 4-14 Aircraft Call Sign
The first box on the DD 175 is the date box and is self-explanatory.
The next section to be filled out is the AIRCRAFT CALL SIGN. Navy/Marine Corps
aircraft may use radio call signs consisting of the Navy service code of "VV" or the Marine
service code of "VM" and the assigned letter/letter or number/letter (tail markings) plus not less
than two or not more than three digits.
3. There are two entries to be made in the next section. The first entry is the aircraft
designation and is self-explanatory. In a formation flight, include the number of aircraft with the
designator of the flight leader's aircraft (One F-4 and one T-38 with the F-4 as the flight leader
would be written as 2/F_4.) DO NOT USE AIRCRAFT MODEL SUFFIXES AS THEY
COULD BE CONFUSED WITH THE TRANSPONDER CODE.
The second entry designates the operable transponder and navigation equipment (TD code)
aboard the aircraft. A list of TD codes is provided in FLIP GENERAL PLANNING (GP).
Figure 4-15 Transponder/Navigational Aids
To file IFR, an aircraft must be able to navigate on the "Victor"
airways. The above chart is based on the aircraft being VOR
equipped. If two or more TD codes apply, enter the code
describing the primary navigational equipment to be used during
the flight. In the table above, "T" and "U" denote VOR equipped
aircraft "A" denotes VOR equipped aircraft with DME (TACAN
or DME transceiver radios) capability. Area NAV equipment
consists of an onboard computer which enables an aircraft to
navigate off "Victor" airways on direct routes by electronically
displacing the NAVAID to a VOR radial and DME fix. The T
34C is not area NAV certified.
Enter the type of flight plan to be flown.
4-14 INSTRUMENT FLIGHT RULES