Statements (21)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
bomber
|
| gptkbp:armament |
bombs
machine guns |
| gptkbp:countryOfOrigin |
gptkb:United_States
|
| gptkbp:crew |
4
|
| gptkbp:engineType |
Pratt & Whitney R-1860 Hornet radial engine
|
| gptkbp:firstFlight |
1928
|
| https://www.w3.org/2000/01/rdf-schema#label |
Martin B-12
|
| gptkbp:introduced |
1933
|
| gptkbp:manufacturer |
gptkb:Glenn_L._Martin_Company
|
| gptkbp:maximumSpeed |
197 mph
|
| gptkbp:numberBuilt |
121
|
| gptkbp:predecessor |
Martin B-10 (prototype phase)
|
| gptkbp:primaryUser |
United States Army Air Corps
|
| gptkbp:range |
1,000 miles
|
| gptkbp:retired |
1940
|
| gptkbp:serviceCeiling |
23,000 ft
|
| gptkbp:successor |
gptkb:Martin_B-10
|
| gptkbp:usedIn |
interwar period
|
| gptkbp:bfsParent |
gptkb:Glenn_Martin_B-10
|
| gptkbp:bfsLayer |
8
|