British Military Aircraft Designations - L

Avro Lancaster

Model Engine(s) Crew Other
B Mk I 4 Rolls-Royce Merlin 24

B Mk II 4 Bristol Hercules VI or 4 Bristol Hercules XVI

B Mk III 4 Packard Merlin 24

B Mk VI 4 Rolls-Royce Merlin 85/87

B Mk VII 4 Rolls-Royce Merlin 85/87

B Mk X 4 Packard Merlin 24

Avro Lancastrian

Model Engine(s) Crew Other
C Mk 2 4 Rolls-Royce Merlin T.24/2

C Mk 4 4 Rolls-Royce Merlin T.24/2

Consolidated Liberator

Model Engine(s) Crew Other
Mk I 4 Pratt & Whitney R-1830-33 Twin Wasp
LB-30A,B, GR Mk I
Mk II 4 Pratt & Whitney R-1830-33 Twin Wasp

C Mk II 4 Pratt & Whitney R-1830-33 Twin Wasp

Mk III 4 Pratt & Whitney R-1830 Twin Wasp
B-24D
Mk IIIA 4 Pratt & Whitney R-1830 Twin Wasp
B-24D
B Mk III 4 Pratt & Whitney R-1830 Twin Wasp
B-24D
GR Mk III 4 Pratt & Whitney R-1830 Twin Wasp
B-24D
GR Mk IIIA 4 Pratt & Whitney R-1830 Twin Wasp
B-24D
B Mk IV 4 Pratt & Whitney R-1830 Twin Wasp
B-24E, not used
C Mk V 4 Pratt & Whitney R-1830 Twin Wasp
B-24D
GR Mk V 4 Pratt & Whitney R-1830 Twin Wasp
B-24D
B Mk VI 4 Pratt & Whitney R-1830 Twin Wasp
B-24H,J
GR Mk VI 4 Pratt & Whitney R-1830 Twin Wasp
B-24H,J
C Mk VII 4 Pratt & Whitney R-1830 Twin Wasp
C-87
B Mk VIII 4 Pratt & Whitney R-1830 Twin Wasp
B-24H,J
C Mk VIII 4 Pratt & Whitney R-1830 Twin Wasp
B-24H,J
GR Mk VIII 4 Pratt & Whitney R-1830 Twin Wasp
B-24H,J
C Mk IX 4 Pratt & Whitney R-1830 Twin Wasp
RY-3

Lockheed Lightning

Model Engine(s) Crew Other
Mk I 2 1

English Electric Lightning

Model Engine(s) Crew Other
F Mk 1 2 Rolls-Royce Avon Mk 200R 1
F Mk 1A 2 Rolls-Royce Avon Mk 210R 1
F Mk 2 2 Rolls-Royce Avon Mk 210R 1
F Mk 2A 2 Rolls-Royce Avon Mk 211R 1
F Mk 3 2 Rolls-Royce Avon Mk 301R 1 F Mk 6
F Mk 3A 2 Rolls-Royce Avon Mk 301R 1
T Mk 4 2 Rolls-Royce Avon Mk 210R 2
T Mk 5 2 Rolls-Royce Avon Mk 301R 2
F Mk 6 2 Rolls-Royce Avon Mk 301R 1 F Mk 3A
F Mk 52 2 Rolls-Royce Avon Mk 210R 1 for Saudi Arabia
F Mk 53 2 Rolls-Royce Avon Mk 302C 1 for Kuwait, Saudi Arabia
T Mk 54 2 Rolls-Royce Avon Mk 210R 2 for Saudi Arabia
T Mk 55 2 Rolls-Royce Avon Mk 302C 1 for Kuwait, Saudi Arabia

Avro Lincoln

Model Engine(s) Crew Other
B Mk I 4 Rolls-Royce Merlin 85 7
B Mk II 4 Rolls-Royce Merlin 66/68 7
Mk XV 4 Rolls-Royce Merlin 7 produced by Victory Aircraft, Canada
Mk 30 4 Rolls-Royce Merlin 7 produced by Government Aircraft Factory, Australia
Mk 30A 4 Rolls-Royce Merlin 7 produced by Government Aircraft Factory, Australia
Mk 31 4 Rolls-Royce Merlin 7 produced by Government Aircraft Factory, Australia

Saro London

Model Engine(s) Crew Other
Mk I


Mk I


Westland Lynx

Model Engine(s) Crew Other
AH Mk 1 2 Rolls-Royce Gem 2 2
AH Mk 1GT 2 Rolls-Royce Gem 42 2
HAS Mk 2 2 Rolls-Royce Gem 2

HAS Mk 2(FN) 2 Rolls-Royce Gem 2
for French Navy
HAS Mk 3 2 Rolls-Royce Gem 42-1

HAS Mk 3CTS 2 Rolls-Royce Gem 42-1

HAS Mk 3GM 2 Rolls-Royce Gem 42-1

HAS Mk 3ICE 2 Rolls-Royce Gem 42-1

HAS Mk 3S 2 Rolls-Royce Gem 42-1

HAS Mk 3S/GM 2 Rolls-Royce Gem 42-1

HAS Mk 3SICE 2 Rolls-Royce Gem 42-1

HT Mk 3 2 Rolls-Royce Gem 42-1

HAS Mk 4(FN) 2 Rolls-Royce Gem 41-1
for French Navy
AH Mk 5 2 Rolls-Royce Gem 41-1 or Gem 42 2
AH Mk 5X 2 Rolls-Royce Gem 41-1 or Gem 42 2
AH Mk 6 2 Rolls-Royce Gem 2 cancelled
AH Mk 7 2 Rolls-Royce Gem 42

AH Mk 7(DAS) 2 Rolls-Royce Gem 42

HAS Mk 8 2 Rolls-Royce Gem 42

HMA Mk 8 2 Rolls-Royce Gem 42

HMA Mk 8(CMP) 2 Rolls-Royce Gem 42

HMA Mk 8(DAS) 2 Rolls-Royce Gem 42

HMA Mk 8(DSP) 2 Rolls-Royce Gem 42

HMA Mk 8(SRU) 2 Rolls-Royce Gem 42

AH Mk 9 2 Rolls-Royce Gem 42

Mk 21 2 Rolls-Royce Gem 2
for Brazilian Navy (SAH-11)
Mk 21A 2 Rolls-Royce Gem 42
for Brazilian Navy
Mk 22

for Egyptian Navy - cancelled
Mk 23 2 Rolls-Royce Gem 2
for Argentine Navy
Mk 24

for Iraqi Army - cancelled
Mk 25 2 Rolls-Royce Gem 2
for Royal Netherlands Navy (UH-14A)
Mk 26

for Iraqi Army - cancelled
Mk 27 2 Rolls-Royce Gem 4
for Royal Netherlands Navy (SH-14B)
Mk 28 2 Rolls-Royce Gem 41-7
for Qatari Police
Mk 64 2 Rolls-Royce Gem 42
for South African Air Force
Mk 80 2 Rolls-Royce Gem 2 or Gem 42-1
for Royal Danish Navy
Mk 80A 2 Rolls-Royce Gem 41 or Gem 42-1
for Royal Danish Navy
Mk 81 2 Rolls-Royce Gem 42-1
for Royal Netherlands Navy (SH-14C)
Mk 82 2 Rolls-Royce Gem
for Egyptian Navy - cancelled
Mk 83 2 Rolls-Royce Gem
for Saudi Army - cancelled
Mk 84 2 Rolls-Royce Gem
for Qatari Army - cancelled
Mk 85 2 Rolls-Royce Gem
for UAE Army - cancelled
Mk 86 2 Rolls-Royce Gem 4
for Royal Norwegian Air Force/Coast Guard
Mk 87 2 Rolls-Royce Gem
for Argentine Navy - embargoed
Mk 88 2 Rolls-Royce Gem 42-1
for Federal German Navy
Mk 88A 2 Rolls-Royce Gem 42-1
for Federal German Navy
Mk 89 2 Rolls-Royce Gem 43-1
for Nigerian Navy
Mk 90 2 Rolls-Royce Gem 42-1
for Royal Danish Navy
Mk 90A 2 Rolls-Royce Gem 42-1
for Royal Danish Navy
Mk 90B 2 Rolls-Royce Gem 42-1
for Royal Danish Navy
Mk 95 2 Rolls-Royce Gem
Super Lynx for Portuguese Navy
Mk 99 2 Rolls-Royce Gem
Super Lynx for South Korean Navy
Mk 99A 2 Rolls-Royce Gem
Super Lynx for South Korean Navy
Mk 100 2 Rolls-Royce Gem
Super Lynx for Royal Malaysian Navy
Mk 120 2 Rolls-Royce Gem
Super Lynx for Royal Air Force of Oman
Mk 130 2 Rolls-Royce Gem
Super Lynx for Algerian Navy

Westland Lysander

Model Engine(s) Crew Other
Mk I 1 Bristol Mercury XII

TT Mk I 1 Bristol Mercury XII

Mk II 1 Bristol Perseus XII

TT Mk II 1 Bristol Perseus XII

Mk III 1 Bristol Mercury XX

TT Mk III 1 Bristol Mercury XX

Mk IIIA 1 Bristol Mercury 30

TT Mk IIIA 1 Bristol Mercury 30

Mk IIISCW 1 Bristol Mercury XII