T-45A UJPT & E2-C2 INAV08
Fuel, Weather, and Alternate Airfield Planning
Question 4 -- 22.214.171.124
For planning purposes, if your destination weather is at or above published minimums but below
3,000-3, forecast weather must be __________ , for a non-precision approach at your alternate.
EXCEPTIONS TO BASIC FILING CRITERIA
For reasons of safety, previous editions of OPNAVINST 3710.7 added two requirements to the basic filing
criteria to provide for the exceptional event that you 1) experience total radio failure when flying IFR to a
"radar only" airfield or one without a TACAN, VOR, or ILS approach, or 2) you must execute a missed
approach with radio failure at your destination and proceed at minimum enroute altitude to an alternate
that does not have a published TACAN, VOR, or ILS approach.
The current edition of OPNAVINST 3710.7 does not include these requirements, but good headwork and
safety considerations would indicate these "rules" should be adhered to.
Regardless of weather conditions, if you are filing to a destination without aircraft compatible
NAVAIDs, a suitable alternate must have a published approach that you can fly without the use of
If the alternate does not have a published approach compatible with your aircraft equipment, the
forecast weather must allow for descent and landing in visual meteorological conditions (VMC)
from the lowest minimum enroute altitude.
Question 5 -- 126.96.36.199
Do OPNAVINST 3710.7 filing minimums apply after a missed approach at your destination?