Talk:HACS

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Military history: Maritime / British / European

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Ships

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Ship Gun Fire Control Systems

Parts of this article have been incorporated into Ship Gun Fire Control Systems which is a survey of ship gun fire control system in US ships since before WWII. Bachcell (talk) 04:50, 28 January 2009 (UTC)[reply]

Victor Humphries HMS Renown

Victor Humphries HMS Renown wrote: "I was a radar RP3 rating on board HMS Renown during WW2. during which time I operated the ABU, which was very reliable the set itself was not very big the CRT being about 9 inchs in diameter, the screen showed two green lines, the top one straight across the screen and the lower line had about a 1/4 inch step which was moved across the screen with a steering wheel situated below and to the left,which ha a smaller steering wheel attached to it so that on moving the larger steering wheel to keep the step steady on the left side of the echo, once I was satisfied that the aircraft was moving in at a steady speed I could LOCK on with the small steering wheel and the stepped line would close in with the echo ,there was an indicator on the screen at 5000 yards, when the aircraft was inside this range I could see by a green light that all guns were loaded cocked and ready to fire, all I then had to do was depress a foot pedal which fired ten 4.5 inch guns, either on the port or starboard sides,If the aircraft echo produced a downward echo every so many seconds (the number of seconds decided just before the operation) it would indicate IFF = identification friend or foe, which meant it was our own aircraft, if there was no IFF and the pilot did not break radio silence he could be shoot down.We also had long range aircraft warning Radar Type 281, which would warn of approaching enemy aircraft 150 miles away, and at WW2 aircraft speeds we had time to prepare.The types 273&284 is another story.Victor Humphries HMS Renown WW2" Victor, I and others would dearly love to discuss your experiences at greater length. If you could post them on a naval history discussion forum, then it might be possible to publish them on a website where they could then be used as a reference here and elsewhere. Thank you very much for your contribution Damwiki1 (talk) 07:23, 20 May 2011 (UTC)[reply]