NZ3801 joined No.3 Squadron in June 1966 and was upgraded to UH-1H in the mid 70’s. Amongst the many duties, NZ3801 saw overseas service in support of UN-operations in East Timor early in the new millennium, marked ‘UNO-075’ and later 'UNO-077'.
One of two Bell 47’s on display at the Air Force Museum is NZ3705. The Sioux was the first helicopter to enter RNZAF service, with the first batch joining newly-formed No.3 (Battlefield Support) Squadron at Hobsonville in December 1965 and January 1966.
The last remaining Sioux helicopters left RNZAF-service in 2012. NZ3706 was initially retained for the RNZAF Historic Aircraft Flight at RNZAF Base Ohakea, but eventually came to the Air Force Museum of New Zealand, Wigram, in November 2021.