The first prototype flew on 1 October 1930 powered by 3 x 201kW Armstrong Siddeley Lynx Major. Two production Viastra IIs were powered by two 391kW Bristol Jupiter XIFs and one Viastra VI – by one Jupiter XIF.
Vickers Viastra
The first prototype flew on 1 October 1930 powered by 3 x 201kW Armstrong Siddeley Lynx Major. Two production Viastra IIs were powered by two 391kW Bristol Jupiter XIFs and one Viastra VI – by one Jupiter XIF.
All Aero 