Hi again!

This is the FuG 220 SN-2, a World War II night-fighter radar, functional in SimplePlanes.

HOW TO USE THE RADAR:

Placement: Anywhere that fits your needs. Use a fuselage block underneath it for easier positioning.

Switch sets Range Detection. The radar initializes with a nominal detection range of 10 km. Its effective operational range is approximately 500 m to 8,000 m; however, the range display extends out to 10 km, beyond which returns are predominantly ground echoes. 

The Frequency button toggles target types. The Search button initiates a scan for the selected target type. Positive pulses indicate that a target is within range and display either azimuth or elevation, depending on the CRT display mode.

 The distance indicator consists of six range markers. Depending on the selected range scale, each marker represents either 2,000 m or 800 m.

When two positive pulses are displayed on the CRT, the target is within 5 degrees of the aircraft centerline in azimuth or elevation.

Target indications are lost when range exceeds 8,000 m or when angular displacement exceeds 45 degrees in azimuth or elevation.

AVARIABLES

After importing this Radar into your build, add this variable:

Range (as "Name")

4000 + (1 - LongRange) * 6000 (as "Expression")

About this Radar:
FuG 220 Lichtenstein SN-2 was a German airborne interception radar used in World War II, especially on night fighters like the Bf 110 and Ju 88. It was part of the Lichtenstein radar series developed by Telefunken and introduced in late 1943 as an improvement to earlier radar models.

Purpose: Active radar for locating enemy aircraft at night or in poor visibility.

Designation: “FuG” stands for Funk-Gerät (radio set); Lichtenstein SN-2 refers to this version of the Lichtenstein air interception radar.

Frequency & performance: Operated in the lower VHF band (around 90 MHz), which made it more resistant to jamming than earlier sets, and gave a longer detection range (practical range up to several kilometres).

Antenna: Used large external “Hirschgeweih” (stag’s antlers) antenna arrays with fewer, longer dipoles — this improved reception but created significant aerodynamic drag.

Deployment: Installed on German night fighter aircraft from about 1943–1944 onwards, gradually replacing earlier radars.

In short, the FuG 220 SN-2 was a mid-WWII Luftwaffe night-fighter radar set that extended detection range and reduced susceptibility to Allied jamming, at the cost of large antennas that slowed the aircraft.

Enjoy, and happy 2026!