The British fitted Type 282 radar to their Hazemeyer twin Bofors mounting, a self-contained unit based on a Dutch design, samples of which reached Britain on several ships which escaped in 1940. The Hazemeyer aka Mark IV was used mainly in destroyers starting with the S class. Previous destroyer classes back to the Tribals had quad 2pdr pompoms but were not able to accommodate the separate director, so the Hazemeyer with its on-mount control system provided significantly increased capability. The Hazemeyer was also tri-axially stabilized, another useful feature in a lively ship like a destroyer.
Was this a range only radar that still required direct sight? I believe this did not happen until the late 40s or early 50s and was not used during the war.
Depends what you mean by "married." As Carronade pointed out the British "mated" the Type 282 radar with their 40mm mount(the Mark IV). However, mounting "shock" sensitive WW2-era electronic equipment on such a mount proved to be quite problematic. When everything worked well, it was quite effective, but that was not very often. The United States chose a different route and mounted the radar on the 40mm gun directors which were subject to much less shock and vibration, rather than placing the radar directly on the gun mount. IIRC, the Mark 49 gun director was the first one to mount radar, although this was late in the production run and far more Mk 49s were completed without radar than with. Other 40mm gun directors to have radar were the Mark 57 and Mark 63 - with the late-war Mark 63 being the first 40mm gun director with radar to be capable of "blind fire." Edit: I found this on the Mk 49 Director over on Researcher@Large's website: http://www.researcheratlarge.com/Ships/Misc/Mk49/
282 was a range-only set. It was a 'cut-down' version of Type 285 used on High Angle Control System directors, with two vice six Yagi antennas. It was also mounted on the separate pompom directors used on cruisers and capital ships. The RN developed the Close Range Blind Fire director with Type 286 which was mounted in their last battleship, the ironically named Vanguard, controlling the new sextuple Bofors mountings, but of course she did not commission until after the war ended. Some of the Battle class destroyers received the STAAG (Stabilized Tachymetric Anti Aircraft Gun), a massive (17 ton) self-contained mounting for just two Bofors guns, also incorporating Type 286 and blind-fire capability, but I don't think this saw war service either.
In RA use the 40mm Bofors was visually sighted. For much of the war the priority was to detect low flying aircraft. LAA Units were married up with early warning radar the AA No 4 set derived from the RAF GCI tactical set for tactical control and local warning of LAA from 1943 onwards.
