IRFP-01
Metro Review
b. Plan to touch down before lift-off point of departing aircraft
c.
Plan your lift-off point to occur before lift-off point of previous
aircraft and climb out above its flight path
d. Delay your lift-off until beyond touchdown point of landing
aircraft
IV. Weather minimums 21.1.1.1
Fig 16: Weather
Minimums
A. OPNAVINST 3710.7 destination weather 21.1.1.1.1.1
Required IAW
OPNAVINST 3710.7
NOTE: Weather at ETA +/- 1 hour dictates alternate weather
requirements.
1. If destination is 0-0 up to but not including published minimums,
then alternate must be 3,000-3 or better
2. If destination is at published minimums up to but not including
3,000-3 (single-piloted absolute minimums 200-1/2)
a. Then for non-precision approaches, alternate must be pub-
lished minimums plus 300-1
b. Then for precision approaches, alternate must be published
minimums plus 200-1/2
NOTE: ILS only authorized precision approach that can be
used at an alternate, i.e., not a PAR.
NOTE: In the case of single-piloted aircraft, or other aircraft
with only one operable UHF/VHF transceiver radar approach,
minimums may not be used as the basis for selection of an
alternate airfield.
3. If destination is 3,000-3 or better, no alternate is required
NOTE: CNATRA requires an alternate be filed for all cross-country
flights, regardless of weather.
V. Weather charts 21.1.1.3
A. Observed-weather charts
1. Surface analysis charts 21.1.1.3.1
Fig 17: Surface
Analysis Chart
a. Based on hourly observed weather information
b. Provide ready means of locating pressure systems, fronts, and
stations with potentially poor weather conditions
c.
Disseminated every 3 hours
(8-97) Original
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