I'm wondering if this thread should be renamed as Lawson Aircraft Projects or some such?
Anyway, good call putting these here, hesham. It seems like the Lawson Airplane Company was settling on an 'L' series before it failed but Lawson designations, generally, are all over the place and most designs just had descriptive names applied.
FWIW, here's my Lawson list ...
Lawson MT-1 - 1917 tandem 2-seat 2-bay sequiplane trainer; x 1
- MT-1 : aka MT1; Military Tractor 1; to US Army spec. No. 1,000
- MT-1 : 1 x 100 hp Hall-Scott A-7a 4-cyl. inline;* span 13.56 m
- MT-1 : Rejected by US Army which demanded more performance
-- * Aerofiles claimed "80hp Hall-Scott" which suggests an A-7
Lawson MT-2 - 1918 tandem 2-seat 2-bay biplane trainer; x 1
- MT-2 : aka MT2; Military Tractor 2; completely revised MT-1
- MT-2 : 1 x 100 hp Hall-Scott A-7a 4-cyl. inline; span 11.88 m
- MT-2 : 12 mph faster than MT-1; War Dept. ordered x 100*
-- * Order cancelled with Armistice; prototype surv. until 1931
-- NB: Aerofiles '100hp Hall-Scott A4' V8 engine clearly in error
Lawson 'Pursuit' - (Project) 1918 single-seat fighter biplane
- 'Pursuit' : Twin-bay, equal-span biplane; no const. details
- 'Pursuit' : 1 x 180 hp Wright-Hisso V8; wingspan (10.00) m
- 'Pursuit' : Prob. related to 'Ground Hog' attack a/c
Lawson 'Ground Hog' - (Project) 1918 armoured attack a/c
- 'Ground Hog': Single-seat biplane 'trench-fighter' type
- 'Ground Hog': 1 x 180 hp Wright-Hisso V8;* span 10.00 m*
- 'Ground Hog': Speculative; trench-fighter deriv. of 'Pursuit'
-- * Speculative (based on "Pursuit 1918"); see reply #8 for more
Lawson (??) - (Project) 1918 reconnaissance aircraft; no details
- (??) : Possibly related to 2-seat Lawson 'Armored Battler' (?)
Lawson 'Armored Battler' - (Project) 1918 armoured attack
- 'Armored Battler': Tandem 2-seat biplane 'trench-fighter'
- 'Armored Battler': 1 x 400 hp Liberty 12; span 10.00 m
- 'Armored Battler': 6 x mgs; aka 'Lawson Battler'
Lawson C1 = 1919 Lawson Aerial Transport passenger a/c
- C1 : aka T-1; commercial a/c proof-of-concept; no details
- C1 : 2 x 400 hp Liberty 12 V12 engines; span ~24.38 m
- C1 : Is this Aerial Transport PoC & L-1 the same (?)
Lawson C2 = 1919 Lawson Air-Line transport aircraft; x 1
- C2 : Same as Lawson L-2 Air-Line (qv)
Lawson L-1 = 1919 Lawson Aerial Transport aircraft; x 1
- L-1: Single-pilot; 10 passenger cabin airliner; 2-bay biplane
- L-1: 2 x 400 hp Liberty 12 V12 pusher props; span 24.53 m
-- L-1 is likely the same aircraft as the Lawson C1 (aka T-1)
Lawson L-2 = 1919 Lawson Air-Line transport aircraft; x 1
- L-2: Single-pilot; 18 passenger cabin airliner; 2-bay biplane
- L-2: 2 x 400 hp Liberty 12 V12 tractor props; span 28.95 m
- L-2: aka Lawson L-2 Air-Line
Lawson L-4 = 1920 Midnight Liner transport aircraft; x 1
- L-4: Trimotor evolution from the 1919 Air-Line design
- L-4: 3 x 420 hp Liberty 12 V12 engines; span 33.96 m
- L-4: 26-pax Midnight Liner sleeper transport; Chicago-NYC
-- 08 May 1921 prototype flight attempt; crashed on takeoff
Lawson Type VIII - (Project) 1921 Night Observation aircraft
- Lawson Type VIII: Sesquiplane; twin-boomed; pusher prop
- Lawson Type VIII: 1 x 300 hp Hispano-Suiza pusher; span (??)
- Lawson Type VIII: To US Army Air Service's Type VIII spec.
-- Prelim. design by Benson Russell Shaw; no contract awarded
-- https://www.secretprojects.co.uk/threads/u-s-army-air-corps-early-1920s-system-types-i-to-xvi-etc.20516/#post-675493
Lawson Type IX - (Project) 1921 Coast Artillery Observation a/c
- Lawson Type IX: 2-seater (pilot & observer); shoulder-winged
- Lawson Type IX: 1 x 700 hp Engineering Division W-1 W-18; span (??)
- Lawson Type IX: To US Army Air Service's Type IX specification
-- Prelim. design by Benson Russell Shaw; no contract awarded
-- https://www.secretprojects.co.uk/threads/u-s-army-air-corps-early-1920s-system-types-i-to-xvi-etc.20516/#post-675037
Lawson (??) = (Project) 1926 56-seat, two-tier super airliner
- (??) : 6 x (??) engines; span (??) m
Lawson (??) = (Project) 1928 100 passenger* super airliner
- (??) : Double-tiered passenger accommodations
- (??) : 12 x (??) hp (??) push-pull engines; span (??) m
-- * Unclear if Lawson's 125-seat airline is the same design
-- https://www.secretprojects.co.uk/threads/lawson-12-engined-100-passenger-airliner.6261/
Anyone else got more? Can anyone fill in some of the gaps in the above?
