Du-Bro Hughes 300 (1973)

		Specification:  Length  59,5" / 1510 mm  Height  22,5" / 561 mm  Main Rotor Dia  57,25" / 1450 mm  Tail Rotor Dia  12,5" / 317 mm  Engine  Ohlson&Rice 20cc  Full Equipped Weight  12 lbs / 6350 g
Documents:
Assembly and Flying instructions.

prototype at US Nationals July 1972.

Introduced June 1973 however, the Ohlsson and Rice 21cc engine (petrol converted to Glow) proved to be unreliable and flight performance was marginal due to it being very heavy (14 pounds !!!).

Dave Gray during testing the Hughes 300.

Not for sale as such but the advert from the UK's RCM&E magazine showed that at least one Dub-Ro Hughes 300 had made it across to the UK before December 73.

How not to hover a Hughes into a car.

Dub-Ro Hughes in UK Nationals 1974 (From Ray Browns models??? - not placed).

Helicopter information from UK magazine Feb 1975 though not sure about the CAA reference as it should have been below 7Kg (14 Lbs noted above).

Fitted with a 'Kavan' rotor???