 771 NAS reformed in 1961 and assumed the helicopter trials and training roles from 700 NAS with the Westland Whirlwind, Westland Dragonfly, and the Westland Wasp prototype at RNAS Portland.During this time 771 was able to pioneer and develop many Search And Rescue techniques; including helicopter in-flight refueling (HIFR), hi-line transfer, free diver drop and cliff winching techniques.Soon after standing up again, the Squadron gained two Westland Whirlwind HAR.3s and assumed the RNAS Portland SAR commitment.