Airspeed AS.6 Envoy - version overview:
AS.6 Envoy
Five initial machines, light transport machines with Wolseley A.R.9 engines and eight or six seats and toilet.
AS.6A Envoy
Five more machines with Armstrong Siddeley Lynx IVC engines.
AS.6D Envoy
Eight Wright R-760-E2 Whirlwinds.
AS.6E Envoy
Five machines for Czechoslovakia, with Walter Castor II engines.
AS.6G Envoy
Modified first prototype with Wolseley Scorpio I engines.
AS.6H Envoy
The only machine with Wolseley Aries III engines, later converted to AS.6D.
AS.6J Envoy
Main version, with Armstrong Siddeley Cheetah IX engines.
AS.6JM/JC Envoy
South African version convertible between military and civilian forms.
AS.8 Viceroy
One converted Envoy for the Anglo-Australian air race.
Hina-Zuru
Japanese licensed version produced by Micubishi, 10-11 machines.
Source:
http://en.wikipedia.org/wiki/Airspeed_Envoy
www.britishaircraft.co.uk
AS.6 Envoy
Five initial machines, light transport machines with Wolseley A.R.9 engines and eight or six seats and toilet.
AS.6A Envoy
Five more machines with Armstrong Siddeley Lynx IVC engines.
AS.6D Envoy
Eight Wright R-760-E2 Whirlwinds.
AS.6E Envoy
Five machines for Czechoslovakia, with Walter Castor II engines.
AS.6G Envoy
Modified first prototype with Wolseley Scorpio I engines.
AS.6H Envoy
The only machine with Wolseley Aries III engines, later converted to AS.6D.
AS.6J Envoy
Main version, with Armstrong Siddeley Cheetah IX engines.
AS.6JM/JC Envoy
South African version convertible between military and civilian forms.
AS.8 Viceroy
One converted Envoy for the Anglo-Australian air race.
Hina-Zuru
Japanese licensed version produced by Micubishi, 10-11 machines.
Source:
http://en.wikipedia.org/wiki/Airspeed_Envoy
www.britishaircraft.co.uk