Figure 1-9 MENTR-NINE Departure

CHAPTER ONE

INSTRUMENTS FLIGHT PLANNING

Figure 1-9 MENTR-NINE Departure

Let us digress a moment and consider Departure Procedures (DPs) SIDs in relation to jet logs.

If you flew a MENTR NINE departure from T/O on RWY 19 at NPA, your total mileage to

ENSLY is approximately 45 NM. See Figure 1-9 to compute the number.

From T/O to the 3 DME arc is 3 NM. To compute mileage on an arc, you use the formula for

distance between radials. Radials 3 miles from the TACAN are spaced 3/60 miles apart. Arcing

from the 145 radial to 295 radial covers (210 X 3/60) 10.5 NM, which we round to 11 NM.

1-8 JET LOGS