British Military Aircraft Designations - W

Supermarine Walrus

Model	Engine(s)	Crew	Other
Mk I			Seagull Mk V
Mk II

Westland Wapiti

Model	Engine(s)	Crew	Other
Mk I	1 Bristol Jupiter VI
Mk IA	1 Bristol Jupiter VIIIF
Mk IB	1 Bristol Jupiter VIIIF or 1 Armstrong Siddeley Panther
Mk II	1 Bristol Jupiter VI
Mk IIA	1 Bristol Jupiter VI
Mk III	1 Armstrong Siddeley Jaguar VI
Mk IV	1 Bristol Jupiter VIIIF		cancelled
Mk V	1 Bristol Jupiter VIIIF
Mk VI	1 Bristol Jupiter VI
Mk VII	1 Bristol Jupiter VI
Mk VIII	1 Armstrong Siddeley Jaguar VI

Foster Wikner Warferry

Model	Engine(s)	Crew	Other
	1

Vickers Warwick

Model	Engine(s)	Crew	Other
ASR Mk I
B Mk I
C Mk I
B Mk II
GR Mk II
GR Mk II Met
C Mk III
GR Mk V
ASR Mk VI

Boeing Washington

Model	Engine(s)	Crew	Other
Mk 1	4 Wright R-3350 Cyclone

Westland Wasp

Model	Engine(s)	Crew	Other
HAS Mk 1			Sea Scout HAS Mk 1

Westland Welkin

Model	Engine(s)	Crew	Other
Mk I	2 Rolls-Royce Merlin 72/73 or Rolls-Royce Merlin 76/77 Vee	1
NF Mk II	2 Rolls-Royce Merlin 72/73 or Rolls-Royce Merlin 76/77 Vee	1

Vickers Wellesley

Model	Engine(s)	Crew	Other
Mk I	1 Bristol Pegasus XX	2

Vickers Wellington

Model	Engine(s)	Crew	Other
Mk I
Mk IA
Mk IC
DWI Mk I
Mk II
B Mk II
DWI Mk II
Mk III
B Mk III
Mk IV
B Mk IV
Mk V
Mk VI
Mk VIG
B Mk VI
GR Mk VIII
Mk IX
Mk X
B Mk X
T Mk 10
GR Mk XI
GR Mk XII
GR Mk XIII
GR Mk XIV
C Mk XV
C Mk XVI
T Mk XVII
T Mk XVIII
T Mk XIX

Westland Wessex

Model	Engine(s)	Crew	Other
HAS Mk 1	2 Napier Gazelle Mk 161
HC Mk 2	2 Bristol Siddeley Gnome Mk 110/Mk 111
HAS Mk 3	2 Napier Gazelle Mk 165
HCC Mk 4	2 Bristol Siddeley Gnome Mk 110/Mk 111
HU Mk 5	2 Bristol Siddeley Gnome Mk 110/Mk 111
HC Mk 5C	2 Bristol Siddeley Gnome Mk 110/Mk 111
HAS Mk 31	2 Napier Gazelle Mk 162		for Royal Australian Navy
HAS Mk 31B	2 Napier Gazelle Mk 162		for Royal Australian Navy
Mk 52	2 Bristol Siddeley Gnome Mk 110/Mk 111		for Iraqi Air Force
Mk 53	2 Bristol Siddeley Gnome Mk 110/Mk 111		for Ghana Air Force
Mk 54	2 Bristol Siddeley Gnome Mk 110/Mk 111		for Brunei
Mk 60	2 Bristol Siddeley Gnome Mk 110/Mk 111

Westland Whirlwind

Model	Engine(s)	Crew	Other
Mk I	2 Rolls-Royce Peregrine
Mk IA	2 Rolls-Royce Peregrine

Westland Whirlwind

Model	Engine(s)	Crew	Other
HAR Mk 1	1 Pratt & Whitney R-1340-40 Wasp
HAR Mk 2	1 Pratt & Whitney R-1340-40 Wasp
HAR Mk 3	1 Wright R-1300-3
HAR Mk 4	1 Pratt & Whitney R-1340-57 Wasp
HAR Mk 5	1 Alvis Leonides Mk 155 or Mk 755
HAS Mk 7	1 Alvis Leonides Mk 155 or Mk 755
HCC Mk 8	1 Alvis Leonides Major Mk 160
HAR Mk 9	1 Bristol Siddeley Gnome H.1000
HAR Mk 10	1 Bristol Siddeley Gnome H.1000
HAR Mk 12	1 Bristol Siddeley Gnome H.1400
HAR Mk 21	1 Pratt & Whitney R-1340-40 Wasp
HAR Mk 22	1 Wright R-1300-3

Armstrong Whitworth Whitley

Model	Engine(s)	Crew	Other
Mk I	2 Armstrong Siddeley Tiger XI	5
Mk II	2 Armstrong Siddeley Tiger VIII	5
Mk III	2 Armstrong Siddeley Tiger VIII	5
Mk IV	2 Rolls-Royce Merlin IV	5
Mk IVA	2 Rolls-Royce Merlin X	5
Mk V	2 Rolls-Royce Merlin X	5
Mk VI	2 Pratt & Whitney	5	cancelled
Mk VII	2 Rolls-Royce Merlin X	5

Westland Widgeon

Model	Engine(s)	Crew	Other
Mk I	1 Blackburne Thrush
Mk II	1 Armstrong Siddeley Genet
Mk III	1 Armstrong Siddeley Genet II or 1 Cirrus Hermes II or 1 de Havilland Gipsy I
Mk IIIA	1 Armstrong Siddeley Genet II or 1 Cirrus Hermes II or 1 de Havilland Gipsy I

Grumman Wildcat

Model	Engine(s)	Crew	Other
Mk I			Martlet Mk I
Mk II			Martlet Mk II
Mk III			Martlet Mk III
Mk IV	1 Pratt & Whitney R-1830-86 Twin Wasp	1	Martlet Mk IV, F4F-4
Mk V	1 Pratt & Whitney R-1830-86 Twin Wasp	1	Martlet Mk V, FM-1
Mk VI	1 Wright R-1820 Cyclone	1	FM-2

Hawker Woodcock

Model	Engine(s)	Crew	Other
Mk I
Mk II

Westland Wyvern

Model	Engine(s)	Crew	Other
TF Mk 1	1 Rolls-Royce Eagle	1
TF Mk 2	1 Armstrong Siddeley Python	1
T Mk 3	1 Armstrong Siddeley Python	2
S Mk 4	1 Armstrong Siddeley Python	1	TF Mk 4
TF Mk 4	1 Armstrong Siddeley Python	1	S Mk 4