IFR

English Proper noun en nuclear physics engineering en w:Integral Fast Reactor. Noun en noun en Q847919 en aviation pilot training en w:instrument flight rules, a set of rules for a pilot flying on instruments, primarily as a means of navigating through inclement weather. en 1953 F.N. Piasecki, L.S. Wigdortchik Can the Airlines Use the Helicopter? SAE Transactions https://www.jstor.org/stable/44553232 61 98 It is important to note that fuel reserves for transport helicopters will be much lower than those for airplanes in view of the helicopter’s inherent flight advantages under IFR (Instrument Flight Rules), and the greater availability of alternate landing areas. en VFR<id:Q907246> SVFR<id:Q1538700> en aviation humorous Initialism of I follow roads, to navigate simply via prominent ground features; this may be at very low level when flight would only normally be possible under Instrument Flight Rules. en 1980 Rich Woods An encounter with God Hoosier United Methodist https://www.jstor.org/stable/community.41223589 10 4 2 Night flying is still a safe means of transportation, however, I have modified my VFR (Visual Flight Rules) night flights to a IFR (normally-Instrument Flight Rules) but in my case I Follow Roads[.] en Q101404269 en epidemiology en w:infection fatality rate. en CFR<id:Q92307203> MR<id:Q58702> en Anagrams en fir FIR Fri IRF RFI RIF Rif fir rif