This 1942 Junkers project was designed as a long-range, Mistel reconnaissance aircraft. The carrier plane (upper component) featured very long span, tapered wings which were mounted low to the fuselage. Also, divided ailerons were used on the outer halves of the long-span wings. There were four Daimler Benz DB 613 (24 cylinder, double inverted V engines), which developed between 3500-4000 horsepower each, mounted on the wing leading edge. A large conventional vertical tail was fitted, and the huge rudder was fitted with continuos trim tabs over the entire rear edge. The main dual-wheeled landing gear retracted to the rear into the engine nacelles and the tail wheel could be retracted into the fuselage. The pressurized, fully glazed cockpit held a crew of 3 or 4 men, from where the remote controlled armament could be controlled. The Ju EF101 was heavily armed for a reconnaissance aircraft, armament consisting of four remote controlled FDL 131Z turrets (two 13 mm MG 131 machine guns). One FDL 131 turret was located on top of the canopy, one on the top of the fuselage aft of the cockpit, and two beneath a stepped section of the fuselage.
          Not many details remain of the lower component, which consisted of a single engined, high-altitude reconnaissance aircraft. It had a wing span of 15 meters (49' 3"). A two man crew was planned for its fully pressurized cockpit. Some sources state that this was a Messerschmitt Bf 109H, but this aircraft could only hold a single pilot. The lower component aircraft fit flush against the carrier aircraft's lower fuselage, with a recess for the smaller aircraft being provided in the upper component aircraft's bottom.
          The flight plan was to have the combination aircraft near the target area, and then the lower component would disengage form the carrier aircraft. After climbing and completing its mission, it would then be recovered to the carrier aircraft using an arresting gear beneath the upper component. The arresting gear was actually constructed by the DFS (German Research Institute for Sailplanes), and was installed and tested on a Heinkel He 177. This project was not pursued due to the late-war situation, and better reconnaissance aircraft coming off the drawing boards.
Junkers Ju EF101 Dimensions and Performances
(upper component)
Span Length Height Track Width Range Flight Altitude Max. Speed
70 m 
229' 8"
26 m 
85' 4"
9.6 m 
31' 6"
18 m 
59' 1"
17000 km 
10564 miles
12000 m 
760 km/h 
472 mph
Junkers Ju EF101 Models
There are no models of the Junkers Ju EF101 available at the present time

Left: Daimler Benz DB 613C-1 24 cylinder, double inverted V engine
Right: FDL 131Z turret w/two 13 mm MG 131 machine guns (cover removed)


Above image from Geheimprojekte der Luftwaffe Band II: Strategische Bomber 1935-1945