The Curtiss Model 36 XNBS-4 was a 1920s prototype biplane

night bomber A night bomber is a bomber aircraft intended specifically for carrying out bombing missions at night. The term is now mostly of historical significance. Night bombing began in World War I and was widespread during World War II. A number of moder ...

built by the Curtiss Aeroplane and Motor Company for the

United States Army Air Corps The United States Army Air Corps (USAAC) was the aerial warfare service component of the United States Army between 1926 and 1941. After World War I, as early aviation became an increasingly important part of modern warfare, a philosophical r ...

Development

The XNBS-4 was developed by Curtiss as an improvement on the

Martin NBS-1 The Martin NBS-1 was a military aircraft of the United States Army Air Service and its successor, the Army Air Corps. An improved version of the Martin MB-1, a scout-bomber built during the final months of World War I, the NBS-1 was ordere ...

. Two prototypes, ''AS68571 ''and ''AS68572'', were built. The design did not enter production because it offered no significant improvement over the NBS-1.

Specifications

References

{{USAAS bomber aircraft XNBS-4 1920s United States bomber aircraft Biplanes Aircraft first flown in 1924 Twin piston-engined tractor aircraft