Kasta 2E1/2E2
Kasta 2E2 antenna truck at MAKS 2005
Country of origin Russia
Type2E1 (2E2)
Range5–150 km (3.1–93.2 mi)
Altitude6 km (3.7 mi)
Azimuth360° (40°)
Precision540 m or 1,770 ft (100 m or 330 ft)

The Kasta 2E (NATO: Flat Face E, alternative name Casta 2E) is a modern Russian radar system.

The development of the Kasta 2E surveillance radars was initiated in the former Soviet Union. Its primary objective is to overcome deficiencies or to satisfy the demand in low-level surveillance.

The Kasta 2E1 (51U6) system uses two antennas and consists of two vehicles:

The Kasta 2E2 (39N6E) system uses one antenna and consists of three vehicles:

Both radar types can be triggered with either equal or opposed phases. Both antenna types can optionally be mounted on a standard 50 m pylon. This arrangement causes a displacement of the radar horizon which in turn increases the detection altitude up to 6 km at a distance of 150 km.

Kasta 2E1 Kasta 2E2
Target detection (height 100 m)
with Antenna 5.4 / 14 m
32 km 41 km
Target detection (height 100 m)
with Antenna 50 m
58 km 55 km
Accuracy distance 540 m 100 m
Azimuth 100' 40'
Height n.a. 900 m
Velocity n.a. 2 m/s
Data processing cap. n.a. 200 Plots
Target tracking n.a. 50 Tracks
Max. Range of radio connection n.a. 50 km
Moving target indication (MTI) 53 DB 54 DB
Mean time between failure (MTBF) 300 h 700 h
Setup time 20 min 20 min
Power up 3.3 min 3.3 min
Teardown 20 min 20 min
Power consumption 16 kW 23 kW
Operating crew 2 2
Transport units 2 3