EH101 Merlin Mk3 RAF Utility This was the first RAF Mk3 utility helicopter built at the Yeovil site of Westland Helicopters. Merlin Civil variant These two photos are of the first EH101 Civil variant built at the Vergiate site of Agusta in Italy. They were taken at Mammoth Lakes airport in sunny California in 2000, when the two of us flew out there to do some work on the aircraft.