NBS - Night Bombardment, Short Distance Aircraft

Model Designation Manufacturer Engine(s) Crew Other
NBS-1
Martin 2 Liberty 12 4
NBS-2
LWF 2 Liberty 12A
cancelled
XNBS-3
Elias 2 Liberty 12A 4
XNBS-4
Curtiss 2 Liberty 12A 4/6