Then Type 985 is not a PESA system like the SPS-32/33, but 'like' the ill-fated SPG-59, luneburg lense and all.Preliminary Report on a visit to the USA in June 1960 stated the 985 was comparable to the SPG-59 (specs 296kW, 3,400 elements, 2.5MW power required) but that the NIGS system would need four illuminators of 5kW each (this seems very low power to me).
Hood said:The Fourth Meeting discussed possible launchers and estimated ship sizes.
6,000 tons was the desired size of the ship, with 40-50 missiles. No studies had been made at that time, but it was roughly working out at 8,000 tons and 30ft longer than County at that stage. If no guns were fitted then 2 launchers might fit on 6-7,000 tons.
It was thought the loading blast doors would need to withstand 100 tons loading! Rate of fire was an issue, especially with both launchers aft. The firing arcs were restricted 45 degrees either side of the beam due to likely blast. VLS was considered but would require a bigger ship.
The best launcher, on weight, would be a single-barrel horizontally loaded. The firing interval would be 20 secs per missile. Four illuminators would be carried, three as a minimum fit.
The Working Party even wondered if they should consider separate LA and HA launchers.
Thanks for the summary, its much appreciated.Hood said:I've been through the file again and its obvious things were in a state of flux during this time.
My previous post only touched on the early meetings. I've consolidated everything here.