This is a list of aviation-related events from 1951:
Events
February
March
April
May
June
July
August
October
September
-
September 21 - the US Marine Corps makes the world's first mass combat deployment by helicopter. 228 Marines are landed in 12 Sikorsky HRS
December
First flights
February
March
April
May
June
July
August
September
November
December
Entered service
May
August