Intro
Discover the Martin B-10, the pioneering American bomber that played a crucial role in WWII. Learn about its innovative design, significant upgrades, and impact on modern aircraft. Explore its lesser-known history, technical specs, and notable missions, shedding light on this forgotten bombers lasting legacy in military aviation and world war history.
The Martin B-10 was a pivotal aircraft in the United States Army Air Corps (USAAC) during the 1930s, serving as a symbol of modernization and innovation in the American military. Despite being a technological marvel of its time, the B-10 remains largely forgotten in the annals of World War II history.

The B-10 was the first all-metal monoplane bomber to be mass-produced in the United States. Its sleek design and innovative features made it a significant improvement over earlier biplane bombers. The aircraft's developers, Glenn L. Martin Company, designed the B-10 to be faster, more maneuverable, and better armed than its predecessors.
Design and Development
The Martin B-10 was designed in response to a 1931 USAAC requirement for a new bomber that could meet the growing needs of the military. The USAAC sought an aircraft that could deliver a 2,000-pound bomb load over a distance of 500 miles, with a top speed of at least 200 mph. Martin's design, which would eventually become the B-10, exceeded these expectations in several key areas.

The B-10 featured a streamlined fuselage, with a rounded nose section and a stepped cockpit. The aircraft's wings were of a low-wing design, with a slight dihedral and a NACA 17 airfoil section. The B-10's landing gear was retractable, and the aircraft was powered by two Pratt & Whitney SGR-1820-F3 radial engines.
Key Features and Innovations
The Martin B-10 was a groundbreaking aircraft in many ways. Some of its key features and innovations included:
- All-metal monoplane design
- Retractable landing gear
- Streamlined fuselage and wing design
- Twin-engine configuration with Pratt & Whitney SGR-1820-F3 radial engines
- Top speed of over 200 mph
- Range of over 1,000 miles
- Bomb load capacity of 2,260 pounds

Despite its many advancements, the B-10 was not without its limitations. The aircraft's defensive armament consisted of only two.30-cal machine guns, which were mounted in the nose and dorsal turrets. Additionally, the B-10's bomb load capacity was relatively modest compared to later bombers.
Operational History
The Martin B-10 entered service with the USAAC in 1934, with the first operational unit being the 7th Bombardment Group at Rockwell Field, California. The B-10 saw extensive service with the USAAC throughout the 1930s, participating in various exercises and competitions.

The B-10 also saw combat during the Spanish Civil War, with several aircraft being exported to the Republican forces. However, the B-10's combat performance was less than impressive, with several aircraft being shot down or damaged.
Obsolescence and Retirement
By the late 1930s, the Martin B-10 was beginning to show its age. The aircraft's defensive armament was deemed inadequate, and its bomb load capacity was no longer sufficient for the growing demands of modern warfare. The B-10's performance was also eclipsed by newer bombers, such as the Boeing B-17 and the Douglas B-18.

As a result, the Martin B-10 was gradually phased out of service, with most aircraft being retired by the early 1940s. Many B-10s were converted into trainers or used for secondary duties, while others were scrapped or sold to foreign nations.
Legacy
Despite its relatively short service life, the Martin B-10 played an important role in the development of American military aviation. The aircraft's innovative design and features paved the way for later bombers, and its service with the USAAC helped to shape the country's airpower doctrine.

Today, only a handful of Martin B-10s remain in existence, with most on display in museums or private collections. Despite its relatively forgotten status, the B-10 remains an important part of American aviation history.
Martin B-10 Image Gallery






What was the Martin B-10's top speed?
+The Martin B-10's top speed was over 200 mph.
How many Martin B-10s were produced?
+A total of 348 Martin B-10s were produced between 1933 and 1936.
What was the Martin B-10's range?
+The Martin B-10 had a range of over 1,000 miles.
In conclusion, the Martin B-10 was an important aircraft in the development of American military aviation, despite its relatively short service life. Its innovative design and features paved the way for later bombers, and its service with the USAAC helped to shape the country's airpower doctrine. We hope you have enjoyed learning about this fascinating piece of history.