Flown by Alan Bristow, this S-51 arrived in Switzerland on 22 September 1948 for a demo tour. It was built by Sikorsky but assembled and used by Westland. It was later evaluated by British European Airways. Photo from: ETH-Bibliothek Zürich

A80-374 was delivered in April 1951, the RAAF's second helicopter and one of three S-51s The other two were lost in accidents but -374 soldiered on in the crash rescue role with 81 Wing at RAAF Williamtown until the early 1960s. Retired, it became an instructional airframe and then a recruiting aid. It was in Sydney's Hyde Park as part of the annual Waratah Festival. It later became an exhibit at the RAAF Museum, Point Cook.

BEA's S-51 operated experimental passenger and mail services from the late 1940s until the mid 1950s. It had been built by Sikorsky and assembled by Westlands at Yeovil.

The RAAF's preserved Dragonfly makes a rare appearance outside as part of the static display at an air show