Martin XB-16
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Like the Boeing XB-15, the Martin XB-16 (Martin Model 145) was designed to meet the United States Army Air Corps' request for a bomber that could carry 2,500 lb (1,100 kg) of bombs 5,000 miles (8,000 km).
The XB-16 was to use four Allison V-1710 liquid-cooled inline engines. (All other contemporary aircraft used radial air-cooled engines.)
In 1935, Martin revised the XB-16 design. The wing span was increased to from 140 ft (42.7 m) to 173 ft (52.7 m), and a set of V-1710 engines added to the trailing edge. This version had a wingspan 20% greater than that of the B-29 Superfortress, the first operational bomber that would fill the role intended for the XB-16.
The XB-16 was cancelled for essentially the same reason the B-15 project was: it wasn't fast enough to meet the requirements set by the army. Since both were cancelled around the same time, Martin did not have time to produce an XB-16.
Specifications (as designed)
{{airtemp
|plane or copter?=plane |jet or prop?=prop
|crew=11
|length main=115 ft
|length alt=35.0 m
|span main=
- Original design: 140 ft
|span alt=43 m)
- 1935 redesign: 173 ft (52.7 m
|height main= ft in |height alt= m |area main= ft² |area alt= m² |empty weight main=104,880 lb |empty weight alt=47,573 kg
|number of props=4, later 6 |type of props=liquid-cooled V12 engines |engine (prop)=Allison V-1710 |power main=850 hp |power alt=640 kW
|performance header=Performance (estimated) |max speed main=190 mph |max speed alt=170 kt, 310 km/h |cruise speed main=140 mph |cruise speed alt=120 kt, 230 km/h |range main=3,300 mi |range alt=2,900 nm, 5,300 km |loading main= lb/ft² |loading alt= kg/m² |power/mass main=0.049 hp/lb |power/mass alt=80 W/kg
}}
External links
Related content
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