T-45C TS INav-08
Fuel, Weather, and Alternate Airfield Planning
One may use a pencil laid on the HSI to approximate the computer's output. The computer can be used to
determine the course and distance from the IAF at your destination to the IAF at the alternate as follows.
Point-To-Point (IAF to IAF)
On the front side, lower portion of the Jet
Flight Log are spaces for cruising from
destination Initial Approach Fix (IAF) to
the alternate Initial Approach Fix. The
Wind Side of the Navigation Computer
can be used to determine magnetic
course and distance for this leg of the
flight using a common feeder facility for
the two IAF navigation facilities.
Using forecast winds, determine
appropriate Approach Procedure Charts
for the probable runways in use at
destination and alternate, based on
forecast surface winds.
New Orleans NAS
Figure 7: NAS NEW ORLEANS APPROACH
Locate a NAVAID common to both
Approach Procedure Charts which have
Feeder Routes to the two IAFs.
Semmes VORTAC is depicted on both
charts with Feeder Routes to the
Pensacola and New Orleans IAFs.
NOTE: Feeder Routes bearing and
range are to the IAF, NOT the holding fix
or the NAVAID.
Figure 8: NAS PENSACOLA APPROACH