In the early 1976 year OSKB MAI-S produced a new multi-purpose aircraft, which was used in the national economy. This machine had the designation "Elf" was equipped with a petrol four-cylinder two-stroke type, which gave 48 horsepower. Cooling air type.

The aircraft was manufactured in a low-wing design, which is equipped with a push-type propeller. At the same time, the weight of the entire structure was 330 kilograms, the wingspan was 5,8 meters. The fuselage is made of all-metal with corrugations installed along the wings. For landing and takeoff, the vehicle is equipped with a non-retractable landing gear system of three legs. The struts are made in a spring version from titanium.

For the first time in public vehicle "Elf" was presented at the exhibition NTTM in 1982 year. The car was awarded the gold medal. Exhibition model has a fixed slats that allowed to increase the angle of attack and greatly simplify piloting by remote control.

The power plant was located in the center of gravity of the aircraft, allowing you to quickly and efficiently replace the engine on the other, without any modification. Due to the push screw can be installed in the bow of the radar equipment, which was closed radome.

As for the stages of operation, they are carried out with the help of radio commands from ground control. Testing of this aircraft took place successfully. When managing remote drone perfectly practiced taxiing, run, and further the gap to the height of 2 meters. The first full flight occurred in 1979, in Tushino.

The aircraft control panel was designed in the form of a pilot's workplace and was very similar to the cockpit of an aircraft. It consisted of hand and foot controls. Television screens were installed to monitor the flight; for this, cameras were installed on board. There was also a standard hand control system.

The control panel automatically rotated when tracking device is carried out by electric drives, and turns were in sync with the rotation of the head of the operator. Place the pilot was equipped with armrests and headrest for greater comfort. In the end, the unit "Elf" and the control panel has successfully passed the test tests.

The flight characteristics of this unit were quite high, since it could fly at speeds from 80 to 120 km / h. The maximum range of the Elf vehicle reached 120 kilometers. 

ELF-D. Characteristics:

Wingspan, m  5.86
Aircraft Length m  5.40
Wing area, m2  6.16
Weight, kg  360
engine's type  1 PD Nelson
Power, hp  X 1 68
Maximum speed km / h 195
Minimum speed, km / h 80
Flight distance, km 120


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