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This one should **** off the gun ninnies
On Wed, 09 Mar 2016 17:31:09 -0500, John H.
wrote: On Wed, 09 Mar 2016 16:01:49 -0500, wrote: The "computer" was really a pretty crude thing, working on gears and cams. All you really got on the radar was range and you computed speed with a stop watch, then put all of that into the computer with dials and it gave you a fuse time with a load time offset. That gets relayed to the fuse setter who dials up the delay, they loaded and fired. All of this happens while the plane is closing in on you. Not stressful at all ;-) I suspect that in the heat of battle, they didn't use it at all. They just put in a typical delay and fired, just to keep the rate of fire up to the max. If the gunner had a pretty good idea when the shell was going off he just used Kentucky windage and fired when he thought the time was right. I know our GM-1 "killed" a F4 phantom at the Gitmo exercises that was flying at about double the speed our equipment was rated for, using the same method. We had a lot of time compared to what the anti-aircraft folks would have. We didn't have radar, of course, but 1/50K maps to get our range and azimuths from. Wind data came from our local weather folks, and I don't remember what else we used. Only did it once. The larger guns, usually used to engage surface targets, take into account everything from the humidity of the air to the curvature of the earth. They also had to compensate for the pitch and roll of the ship. That was basically what FT school was all about. They started out, right after the basic electronics courses, with "the fire control problem" and the trig necessary to solve the various factors. It took us about a week to plot the first shot, understanding what each factor was but the second one went a lot faster. After two weeks you really started wanting to find out about the computers that do this for you ;-) These things were still big mechanical boxes way up into the 60s. Now you could do it on your phone. There was also a lot of training in the syncros, servos and the mechanical systems that point the gun. It was 18 weeks of something new every day but I really had a pretty good time and learned a lot of things about a lot of things. |
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