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Given temperature, altitude, density altitude, and aircraft loading, what is the expected aircraft performance?
o Takeoff distance
o Time & distance to climb
o Cruise performance
o Landing distance
.
Are these performance values sufficient for the runways to be used and the terrain to be crossed on this flight?
(Remember that it is always good practice to add a 50% to 100% safety margin to the “book numbers” you derive from the charts in the aircraft’s approved flight manual (AFM)).
Turbulence
.
Are the wind conditions at the departure and destination airports within the gust and crosswind capabilities of both the pilot and aircraft? (Note: For most GA pilots, personal minimums in this category might be for a maximum gust of 5 knots and maximum crosswind component 5 knots below the maximum demonstrated crosswind component.)
.
What is the maneuvering speed (VA) for this aircraft at the expected weight?
(Note: Remember that VA is lower if you are flying at less than maximum gross weight.)
32 12/09
VFR Anal
ysis
W
o
rksheet
Turbulence Ceiling & Visibility Visibility & Performance Trends
Place Time Wind Visibility Weather Ceiling Temp/Dewpt Altimeter
Nearest
Good
Weather
Direction:
N S E W
Distance:____ nm
Flying time to nearest good VFR:________
Ceiling and Visibility Analysis
Personal Minimums: Ceiling = ___________ Visibility = __________
Planned altitude = _____________
-Lowest en route ceiling = ______ ___________
ground clearance
Planned altitude = _____________
-Highest en route obstacle =_____ ___________
clearance
Planned altitude = _____________
-Highest en route terrain =______ ___________
clearance
AIRMETS? Yes No
SIGMETS? Yes No
Reliable ceiling information? Yes No
Over mountainous terrain ? Yes No
Over large bodies of water ? Yes No
Departure visibility = ________________ Lowest en route visibility = ___________ Destination visibility = _______________
Performance Analysis
Preflight Guide v. 1.3
Appendix 7
Weather Analysis Checklist – IFR Flight
Ceiling and Visibility
.
Is the forecast ceiling for my estimated time of arrival high enough to make the approach?
.
What visibility can I expect for each phase of flight (departure, enroute, destination)?
--Will I have enough visibility to legally make an instrument approach at the destination?
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本文链接地址：General Aviation Pilot’s Guide to Preflight Weather Planning, Weather Self-Briefings, and Weather Decision Making(22)
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