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United States' flagUnited States' Army Air Corps aircraft marking

United States' Martin 167 Maryland; Martin Model 167 Maryland bomber


The Maryland was designed for the United States Army by the Glenn L. Martin Company in the late 1930s by James S. McDonnell (who later founded McDonnell Douglas).1,4 The Maryland lost out to the Douglas A-20 Boston.1,2,4

However, the French ordered 1154 / 175 / 2153 when told the Maryland could be delivered by the end of 1940.2


On March 14, 19382 / February 19394 / March 13, 19391 / March 14, 19393 the Maryland XA-22 prototype first flew.1,2,3

Even though the Maryland performed better than the other bombers put forward by other companies the United States Army did not give Martin the contract.1,4


The aircraft factory was the largest in 1939.1

The first Model 167F, for the French, flew in August 1939.3 The first Marylands came off the production line on September 2, 1939.1 Deliveries of the Maryland Mk II started in June 1940 and lasted until March 1942.3

  • XA-22: 13,4
  • Model 167F: 1393
  • Maryland Mk I: 1513
  • Maryland Mk II: 1503
  • Total: 3414, 4413, 4961
    • Manufacturer: Glenn L. Martin Co4


  • XA-22: Prototype.1
  • Maryland Mk I: Single stage super changed engines.2 The engines were Martin 167Fs.2
  • Maryland Mk II: Two stage super charged engines.2


Britain, France, and South Africa used the Maryland.3


495 Marylands were sold to France.1 75 (1403) of them were delivered before the fall of France in 1940.2,3

The Marylands had only a loss rate of 8%, which was the lowest for a bomber in French service.3

After the fall of France, many of these were transferred to the Royal Air Force and Royal Navy.1 Others went to North Africa to the Vichy.3

Use in Battle of France

The GB I/62 and GB I/63 were equipped with the Maryland during the Battle of France.2

Vichy Use

After the fall of France the 60 Marylands that were left went to the Vichy forces in North Africa and Syria.2 Some of these were to be later used against the Allies.2

United Kingdom

The Royal Air Force (RAF) took over the 50 French Model 167Fs and named them the Maryland Mk I.3,4 The United Kingdom ordered 150 / 2254 Maryland Mk IIs.2 72 of these were sent to the South African Air Force.3

Defense of Malta

The No. 431 General Reconnaissance Flight received the first Marylands in October 1940.2,3


The Marylands provided the reconnaissance of Taranto Harbor before the Swordfish attacked the Italian Navy.2,3

Bismark and Prinz Eugen

The Fleet Air Arm (FAA) used Marylands for reconnaissance and one of them reported the departure of the Bismark and Prinz Eugen in May 1941 from their port.3


  Martin 167 Maryland
Martin Maryland
Type Light bomber1,4, Reconnaissance bomber3
Crew 33,4
Engine (Type) 2: Pratt & Whitney R-1830-37 Twin Wasp4
Cylinders Radial 144
Cooling Air4
HP 1,200 each4
Propeller blades 3 constant speed4
Span 61' 4"3,4
18.69 m3
Length 46' 8"3,4
14.22 m3
Height 15'3
4.57 m3
Wing area 538.5 ft2 4
Empty 11,170 lb4
Loaded 16,000 lb4
Speed @ 5,000' 280 mph4
Service ceiling 20,000'4
Range 600 miles4
Wings 4: .30 cal MG4
Dorsal turret 1: .30 cal MG4
Underside 1: .30 cal MG4
Nose 1: .30 cal MG4
Bombs 1,800 lb4
  Marin Maryland Mk I
Engine (Type) 2: Pratt & Whitney R-1830-S1C3-G Twin Wasp3
Cylinders Radial 143
HP 1,050 each3
Propeller blades 3 each3
Wing area  
Loaded 15,297 lb3
6,939 kg3
Service ceiling  
Wings 4: 0.303" MG3
Dorsal turret 1: 0.303" MG3
Ventral position 1: 0.303" MG3
Bombs 1,250 lb3
567 kg3
  Martin 167 Maryland Mk II
Martin Maryland Mk II
Type Reconnaissance2, Bomber2
Crew 32
Engine (Type) 2: Pratt & Whitney S3C4-G piston2
2: Pratt & Whitney R-1830-S3C4-G Twin Wasp3
Cylinders Radial2
HP 1,200 each2,3
Propeller blades 3 each3
Span 61' 4"2
18.69 m2
Length 46' 8"2
14.22 m2
Height 14' 11.25"2
4.55 m2
Wing area 538.5 ft2 2
50.03 m2 2
Empty 11,213 lb2,3
5,086 kg2,3
Loaded 16,809 lb2,3
7,625 kg3, 7,631 kg2
Speed @ 11,800' /
3,595 m
278 mph2
448 kph2
Speed @ 11,800' /
3,597 m
278 mph3
447 kph3
Climb 1,790'/minute2,3
545 m/minute3, 546 m/minute2
Service ceiling 26,000'2,3
7,925 m2,3
Range 1,210 miles2
1,947 km2
Range with maximum bomb load 1,080 miles3
1,738 km3
Wings 4: 0.303" MG3
4: 7.7 mm MG2
Dorsal turret 1: 0.303" MG3
1: 7.7 mm MG2
Ventral position 1: 0.303" MG3
1: 7.7 mm MG2
Bombs 2,000 lb2,3
901 kg2, 907 kg3


  1. Aircraft of WWII, General Editor: Jim Winchester, 2004
  2. Fighting Aircraft of World War II, Editor: Karen Leverington, 1995
  3. Aircraft of WWII, Stewart Wilson, 1998
  4. American Attack Aircraft Since 1926, E. R. Johnson, 2012
20th Century American Military History Crucial Site