Radar, Gun Laying, Mark I, or GL Mk. I for short, was a pre-World War II radar system developed by the British Army to provide range information to associated anti-aircraft artillery. There were two u
GL Mk. II transmitter van
Aerial photo of a gun laying mat installed on the east coast, north of Sunderland. The ramp and platform at the centre are prominent.
The GL Mk. III B was much smaller and far more mobile than the Mk. II it replaced.
This image from an AI Mk. IV radar is similar in concept to the GL Mk. II, although it displays blips on either side of a centreline rather than as two peaks on one side. The blips are just visible about half-way along the baseline. The large triangles at the top and right are caused by ground reflections, and are not present in GL systems.
Radar, Anti-Aircraft Number 3 Mark 7, also widely referred to by its development rainbow code Blue Cedar, was a mobile anti-aircraft gun laying radar designed by British Thomson-Houston in the mid-194
Finnish AA No. 3 Mk. 7 radar used as a counter-battery radar under the name "Yrjö".
Feuerleitradar Mark VII at the Flieger-Flab-Museum at the Dübendorf Air Base. The 43/50R predictor is on the right.