English Wikipedia - The Free Encycl...
Download this dictionary
Instrument flight rules
Instrument flight rules
(
IFR
) is one of two sets of regulations governing all aspects of
civil aviation
aircraft operations; the other is
visual flight rules
(VFR).
See more at Wikipedia.org...
© This article uses material from
Wikipedia
®
and is licensed under the
GNU Free Documentation License
and under the
Creative Commons Attribution-ShareAlike License