Excellent post as usual Savoia, including a great pic. Really interesting to hear of the Colonels recollections of flying the rare beast.
Hears a few clips that the BBC recorded featuring a few internal and external Widgeon sounds among others.
Online Helicopter, Westland Widgeon Sound Effects - Download Helicopter, Westland Widgeon Sound Effects - 5.1 Surround Sound Helicopter, Westland Widgeon Tracks - Page 1
Some of the other recordings including the Sycamore and even the Fairey Rotodyne.
Helicopter Sound Effects - Online Helicopter Sound Effects - Download Helicopter Sound Effects - 5.1 Surround Sound Helicopter Tracks Page 1