CYMBELINE MK 1 MORTAR LOCATING RADAR (RADAR, FIELD ARTILLERY NO 15)

The basic Cymbeline system (Radar, Field Artillery, No 15) Mortar Locating Radar is a mobile, lightweight single unit radar on a two wheel trailer with a turntable stand with four adjustable legs for leveling and is usually deployed together with Field Artillery.  The Mk 1 was transportable and could be underslung on a helicopter for placement in areas inaccessible by road. 

ELT/555 (V) 3 AIRBORNE ELECTRONIC COUNTERMEASURES POD

The ELT/555 (V) 3 is a self-contained self protection ECM pod for supersonic fighter aircraft. Electrical power generation is ensured by a ram-air turbine located on the nose of the pod. Internal equipment include fore and aft facing antennas which receive pulsed and continuous wave signals and transmit pulsed responses,

RP-21 ONBOARD INTERCEPTION RADAR (NATO CODE NAME: SPIN SPAN)

The MiG-21PF aircraft was the first MiG-21 version to employ airborne radar.  It required the nose cone that houses the antenna to be enlarged.  Another modification was the incorporation of a continuously adjusting air inlet.  The MiG-21F as well as all trainer versions (21U/US/UM) had a nose cone control with only three positions (in-below M=1,5; half out between M=1.5 ...1.9, full out M=1.9+).  The new nose cone control used the pressure differential within the engine to continuously and smoothly provide the best operating conditions for the turbojet engine.  The RP-21 radar has the NATO code name "Spin Span".

P-15 FLAT FACE B-1S LONG RANGE SURVEILLANCE RADAR (SOVIET UNION)

In 1952 SRI-244 started development of what become the P-15 early warning radar, by 1955 the radar had passed state trials and was accepted into service with the anti-aircraft troops of the Soviet armed forces.. The P-15 was designed to detect aircraft flying at low altitude making use of the C-Band (UHF) and came to be associated with the SA-3 Surface-to-Air Missile (NATO reporting name "GOA") although it was later replaced by the P-15M2 "Squat Eye" radar which mounted a single radar antenna on a 20-30 meter mast to improve coverage.