Curtiss XNBS-4 explained

The Curtiss Model 36 XNBS-4 was a 1920s prototype biplane night bomber built by the Curtiss Aeroplane and Motor Company for the United States Army Air Corps.[1]

Development

The XNBS-4 was developed by Curtiss as an improvement on the Martin NBS-1. Two prototypes, AS68571 and AS68572, were built. The design did not enter production because it offered no significant improvement over the NBS-1.[1]

Notes and References

  1. Web site: Factsheet: Curtiss XNBS-4. NMUSAF. 12 July 2017. bot: unknown. https://web.archive.org/web/20120616094935/http://www.nationalmuseum.af.mil/factsheets/factsheet.asp?id=2438. 16 June 2012.