Douglas YB-11

Infobox Aircraft
name=YB-11


caption=
type=Seaplane bomber
manufacturer=Douglas Aircraft Company
designer=
first flight=
introduced=
retired=
status= Prototype
primary user= United States Army Air Corps
more users=
produced=
number built= 1
program cost=
unit cost=
developed from=Douglas XP3D
variants with their own articles=The Douglas YB-11 was a bomber aircraft designed for the United States Army Air Corps. Although a prototype was built, it did not enter production.

Design and development

In the early 1930s, the U.S. Army ordered the development of an amphibious observation plane, designated the Douglas YO-44, based on the United States Navy's Douglas XP3D seaplane. When the Army accepted the YO-44, it was redesignated YOA-5, 'observation amphibian model 5'. A version of the YOA-5 was converted to bomber duty and designated the YB-11.

Operators

;flag|United States|1912
*United States Army Air Corps

pecifications (YB-11)

aircraft specifications

plane or copter?=plane
jet or prop?=prop

crew=
length main=69 ft 9 in
length alt=21.3 m
span main=89 ft 9 in
span alt=27.4 m
height main=22 ft 0 in
height alt=6.7 m
area main=1,101 ft²
area alt=102.3 m²
empty weight main=14,038 lb
empty weight alt=6,368 kg
loaded weight main=20,000 lb
loaded weight alt=9,000 kg
max takeoff weight main= kg
max takeoff weight alt= lb

number of props=2
engine (prop)=Wright R-1820-45
type of prop="Cyclone" radials
power main=800 hp
power alt=600 kW

max speed main=169 mph
max speed alt=147 knots, 272 km/h
cruise speed main=152 mph
cruise speed alt=132 knots, 245 km/h
stall speed main=75 mph
stall speed alt=65 knots, 120 km/h
ceiling main=18,900 ft
ceiling alt=5,760 m
range main= mi
range alt= nm, km
climb rate main=770 ft/min
climb rate alt=3.9 m/s
loading main=18 lb/ft²
loading alt=89 kg/m²
power/mass main=0.080 hp/lb
power/mass alt=130 W/kg

guns=3× .30 in (7.62 mm) machine guns

ee also

aircontent

lists=
* List of bomber aircraft
* List of military aircraft of the United States
* List of seaplanes and flying boats

see also=

References

External links

* [http://www.wpafb.af.mil/museum/research/bombers/b2-6.htm USAF Museum description of YB-11]
* [http://home.att.net/~jbaugher2/b11.html Encyclopedia of American aircraft]