National Museum of the USAF   Right Corner Banner
Join the Air Force

Home > Fact Sheets > Martin B-26B to B-26-B4


Posted 6/26/2009 Printable Fact Sheet
Previous ImageNext Image
Martin B-26B
Martin B-26B-MA (S/N 41-17545, the second B-26B built). This aircraft was used for testing and prototyping. Note the solid nose and the late-model air intakes; this is probably the CB-26B (cargo/transport) prototype. (U.S. Air Force photo)
Download HiRes

The first 641 (of 1883) Martin B-26Bs built were basically improved versions of the A model. Changes included replacement of the single .50-cal. machine gun with twin guns in the tail and a tunnel gun mounted in the rear crew entry hatch for increased protection below and behind the aircraft. Block 3 and 4 aircraft had large carburetor intakes necessary for more robust sand filters. Block 4 aircraft had a longer nose wheel strut, which was designed to improve take-off performance by increasing the angle of attack. Late production block 4 aircraft deleted the tunnel gun and replaced it with waist gunner positions location near the tail below the aircraft centerline.

Great Britain received 19 B-26B-4s as Marauder Mk.1A.

Major changes were incorporated into the B-26B-10 and later including a wing span increase of six feet and a taller vertical stabilizer.

Type Number built/
B-26B-MA 81 Twin .50-cal. tail turret and tunnel gun
B-26B-1-MA 225 Improved B-26B-MA
B-26B-2-MA 96 B-26B-MA with R-2800-41 radials
B-26B-3-MA 28 Large carb. intakes; -43 radials
B-26B-4-MA 211 Improved B-26B-3-MA; to RAF as Mk.1A

Armament: Four .50-cal. and two .30-cal. machine guns (or six .50-cal.) plus 5,200 lbs. of bombs (maximum overload) or one externally mounted torpedo
Engines: Two Pratt & Whitney R-2800-41 Double Wasp radials of 2,000 hp each (takeoff power)
Maximum speed: 317 mph at 14,500 ft.
Cruising speed: 260 mph
Range: 1,150 miles with 3,000 lbs. bomb load; 2,800 miles (maximum)
Service ceiling: 23,500 ft. 
Span: 65 ft. 0 in.
Length: 58 ft. 3 in.
Height: 19 ft. 10 in.
Weight: 34,000 lbs. (maximum)
Crew: Seven
Serial numbers: 41-17544 to 41-18184

Click here to return to the Bomber Aircraft index.

 Inside the Museum

ima cornerSearch

ima cornerAircraft


tabRelated Links

Museum Virtual TourMuseum Facebook PageMuseum Twitter PageMuseum Instagram
Museum Google Plus PageMuseum Pinterest PageMuseum YouTube ChannelMuseum Flickr Page
Museum PodcastsMuseum E-newsletter Sign-upMuseum RSS Feeds

Site Map      Contact Us     Questions     Security and Privacy notice     E-publishing  
Suicide Prevention    SAPR   IG   EEO   Accessibility/Section 508   No FEAR Act