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United States' Martin 167 Maryland bomber¹
Martin Model 167, Maryland bomber³

Martin 167 Maryland bomber:

Martin 167F Maryland bomber:

Design

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 The Maryland lost out to the Douglas A-20 Boston.^1,2

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

Prototype

On March 14, 1938² / 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

Production

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
• Model 167F: 139³
• Maryland Mk I: 151³
• Maryland Mk II: 150³
• Total: 441³, 496¹

Variants

• 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

Usage

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

France

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 French Model 167Fs and named them the Maryland Mk I.³ The United Kingdom ordered 150 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

Taranto

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 Maryland1 Martin Maryland3	Marin Maryland Mk I3	Martin 167 Maryland Mk II2 Martin Maryland Mk II3
Type	Light bomber1 Reconnaissance bomber3		Reconnaissance2 Bomber2
Crew	33		32
Engine (Type)		2: Pratt & Whitney R-1830-S1C3-G Twin Wasp3	2: Pratt & Whitney S3C4-G piston2 2: Pratt & Whitney R-1830-S3C4-G Twin Wasp3
Cylinders		Radial 143	Radial2
Cooling
HP		1,050 each3	1,200 each2,3
Propeller blades		3 each3	3 each3
Dimensions
Span	61' 4"3 18.69 m3		61' 4"2 18.69 m2
Length	46' 8"3 14.22 m3		46' 8"2 14.22 m2
Height	15'3 4.57 m3		14' 11.25"2 4.55 m2
Wing area			538.5 ft2 2 50.03 m2 2
Weight
Empty			11,213 lb2,3 5,086 kg2,3
Loaded		15,297 lb3 6,939 kg3	16,809 lb2,3 7,625 kg3, 7,631 kg2
Performance
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
Armament
Wings		4: 0.303" MG3	4: 0.303" MG3 4: 7.7 mm MG2
Dorsal turret		1: 0.303" MG3	1: 0.303" MG3 1: 7.7 mm MG2
Ventral position		1: 0.303" MG3	1: 0.303" MG3 1: 7.7 mm MG2
Bombs		1,250 lb3 567 kg3	2,000 lb2,3 901 kg2, 907 kg3

Sources:

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

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