Statements (30)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
bomber
|
| gptkbp:armament |
5 × .30 in machine guns
|
| gptkbp:bombLoad |
2,000 lb
|
| gptkbp:category |
gptkb:aircraft
military aircraft of the United States |
| gptkbp:crew |
4
|
| gptkbp:emptyWeight |
7,100 lb
|
| gptkbp:enginePower |
400 hp each
|
| gptkbp:firstFlight |
1920
|
| gptkbp:height |
14 ft 7 in
|
| https://www.w3.org/2000/01/rdf-schema#label |
Martin NBS-1
|
| gptkbp:introduced |
1920
|
| gptkbp:length |
44 ft 9 in
|
| gptkbp:manufacturer |
gptkb:Glenn_L._Martin_Company
|
| gptkbp:maximumSpeed |
99 mph
|
| gptkbp:notableEvent |
used in Billy Mitchell's 1921 bombing tests
|
| gptkbp:numberBuilt |
130
|
| gptkbp:powerplant |
2 × Liberty L-12 V12 engines
|
| gptkbp:predecessor |
gptkb:Handley_Page_O/400
|
| gptkbp:primaryUser |
United States Army Air Service
|
| gptkbp:range |
550 mi
|
| gptkbp:retired |
1929
|
| gptkbp:role |
night bomber
|
| gptkbp:serviceCeiling |
10,300 ft
|
| gptkbp:successor |
gptkb:Keystone_B-3
|
| gptkbp:usedBy |
United States Army Air Service
|
| gptkbp:weight |
12,225 lb
|
| gptkbp:wingspan |
74 ft 0 in
|
| gptkbp:bfsParent |
gptkb:Martin_MB-1_bomber
|
| gptkbp:bfsLayer |
7
|