INSTRUMENTS FLIGHT PLANNING
2. Twenty minutes of flight at 10,000 feet, maximum endurance profile (T-34C = 60 lbs,
T-39N = 540 lbs).
You must choose the greater of these two amounts.
In all of your planned flights thus far you have complied with the
VT-10/4 requirements and planned for your alternate profiles from
destination IAF to alternate IAF. OPNAVINST 3710.7 dictates
that you must plan from your destination IAF to alternate airfield.
This is not a discrepancy. In your planning at VT-10, the alternate
IAF is simply an intermediate point and is followed by an
instrument approach to the alternate airfield, thus complying with
Figure 6-1 Concept of Mission Completion Feasibility
Using the example of a flight from NAS Pensacola to Tyndall AFB, we will demonstrate the
concept of Mission Completion Feasibility.
In Figure 6-1, you have computed 545 lbs remaining at the destination initial approach.
Additionally, you planned for an alternate; therefore, fuel planning for the alternate is going to
determine your mission completion fuel.
The EMERGENCY "BINGO" TO ALTERNATE section on the reverse side of the jet log
(Figure 6-2) determines your mission completion fuel, specifically the LAST CRUISING ALT
line. This line meets your OPNAV fuel requirements in it comprises fuel to your alternate IAF,
the fuel for one approach, and the fuel required for reserve. If it becomes necessary, due to
weather conditions or problems at your destination airfield, to proceed to your alternate, this
TOTAL fuel figure is the minimum fuel required to safely and legally do so. In this example, we
have a mission completion fuel of 160 lbs.
MISSION COMPLETION FEASIBILITY 6-3