OKB-1 EF 140

The OKB-1 EF 140 was a prototype aircraft developed in the Soviet Union by captured German engineers from the Junkers factory, originally conceived as a bomber, but later considered as a reconnaissance machine. The aircraft was a follow-on from the Junkers Ju 287 bomber prototype, but while it used the same basic layout and engineering concepts, it was an entirely new design by Brunolf Baade.

Only one EF 140 was actually built, and began flight tests on March 15 1949, using Rolls-Royce Nene engines as the intended Mikulin units were not yet ready. The project was cancelled before the second prototype was complete.

pecifications

aircraft specifications
plane or copter?= plane
jet or prop?= jet
ref=
crew= Three
capacity=
length main= 19.70 m
length alt= 63 ft
span main=19.40 m
span alt= 62 ft 1 in
height main= 5.70 m
height alt= 18 ft 3 in
area main= 58.4 m²
area alt=627 ft²
airfoil=
empty weight main= 12,500 kg
empty weight alt= 27,500 lb
loaded weight main= 24,500 kg
loaded weight alt= 53,900 lb
useful load main=
useful load alt=
max takeoff weight main= 27,000 kg
max takeoff weight alt= 59,400 lb
more general=

engine (jet)=Mikulin AM-01
type of jet= turbojets
number of jets=2
thrust main= 68.7 kN
thrust alt= 15,400 lbf
thrust original=
afterburning thrust main=
afterburning thrust alt=

max speed main= 1,230 km/h
max speed alt= 665 knots, 767 mph
cruise speed main=
cruise speed alt=
never exceed speed main=
never exceed speed alt=
stall speed main=
stall speed alt=
range main= 2,500 km
range alt= 1,350 nm, 1,558 miles
ceiling main= 12,300 m
ceiling alt= 40,000 ft
climb rate main=
climb rate alt=
loading main=
loading alt=
thrust/weight=
power/mass main=
power/mass alt=
more performance=
armament=
* 4 × 23 mm machine guns in two remotely-controlled turrets
* Production version was to carry 4,500 kg (9,900 lb) of bombs
avionics=

ee also

aircontent
related=
* Junkers Ju 287
similar aircraft=

sequence=

lists=
* List of military aircraft of the Soviet Union and the CIS
see also=