Figure 2-16 Route of Flight 3

CHAPTER TWO

INSTRUMENTS FLIGHT PLANNING

Named intersections are listed in the ROUTE OF FLIGHT section by name rather than

radial/DME. If we were taking a flight from Navy Meridian to Vulcan, through the SALMS

intersection, to Memphis, to Navy Memphis IAF, we enter:

Figure 2-16 Route of Flight 3

Notice in both preceding examples that our last point is an IAF. Most IAFs you use are defined

by a TACAN radial and DME. When writing that information on a DD 175, the numbers

corresponding to the radial/DME are given together as six digits. Note how the following NPA

TACAN fixes are written:

015o/5 NM = 015005

125o/100 NM = 125100

001o/1 NM = 001001

NOTE

It is not necessary to file to the IAF as your last point. You may

also use any NAVAID nearest the field.

205.

TO/ETE BLOCKS

In the TO block, enter the three-letter identifier of the aerodrome of your intended landing

opposite the last line entry in the route of flight. In the ETE block, write the time (in hours and

minutes) that you computed on your jet log to the IAF. Do not include any time for the

instrument approach.

Figure 2-17 TO/ETE

It is imperative that your ETE is accurate. If you lose your radio enroute in IMC conditions and

cannot land VMC, you would be expected at the VAD IAF one hour and six minutes after T/O.

ATC would clear traffic so your flight path would not be impeded and you could commence an

approach from the IAF at that time.

2-10 DD 175 FLIGHT PLAN