Has anyone any info or experiences with the WW2 No3 Mk2 AA radar trailer (also known as GL3B).
Mounted on a 6 wheel trailer and weighing 9.5 tons, has 2 48" parabolic reflectors on the roof.
Built from 1943 to 45 and used up to the late 50's by the British Army.
Alan (I think we have communicated before)
I cant offer you much except..
I have a pdf file I gathered somewhere which has a para or two on the Canadian use and export of the GL3C
REPORT NO. 73
HISTORICAL SECTION (G.S.)
14 Feb 55
A SURVEY OF ARMY RESEARCH AND DEVELOPMENT 1939-45
If this interests you
email me at
harvey at edwards dot net
and I will send it to you
my only notes say...
Two CV22 thyratrons were used to generate a 40A/25kV 1µs pulse at 400pps for the GL3 S-band radar.
and finally I once received from...
Fred J. Heath
At Royal Canadian Air Force, where I became the resident engineer at Research Enterprises in Toronto, where the Canadian government was manufacturing radar equipment basically to the British design: initially, the ASV equipment and also gunlaying equipment equipment that used two separate antennas, one for transmitting and one for receiving. They had operators who maintained the direction: one operator for vertical and the other for horizontal direction. It gave, I would imagine, about the same sort of performance as they had with the 584. This was the GL3-C I think they called it. And they said that without radar it took about 2,000 shells to bring an enemy plane down; with radar they could do it with about eight or ten. [Chuckling] They built about 660, I think, of those GL3-Cs and shipped them over to Britain and, I guess, to the continent.
sorry not much help