Flying way off topic now...
Yes, I mixed up my apples and oranges. Since the Century LASD area and the Olympic LAPD are more of less in the same neck of the woods I mixed them up.
Kinda sorta... Olympic Blvd would be 10th St., and Century would be 100th St.
My recollection of the geography of the metro area is beginning to fade a little after moving away from there 36 years ago. It is interesting, however, that my knowledge of the wildland of southern California is better than it has ever been.
Similarly, I'm a L.A. rail (and trolley) buff, so I can still see in my mind's eye just about any line or junction or related landmark down there, even 21 years after having escaped to the north state. I'm still
pretty good with the street layouts, and even many obscure roads and locations, since that was my job - but boy does it all
look so different when I visit these days.
I always wondered what the logic was in assigning the basic cars a call sign. I will have to listen with that in mind next time I'm down there while keeping your disclaimer in mind.
It is interesting how they are structuring so many different shifts to meet the workload. In the past it seemed as though there were 3 hours of every day where the service level dropped, the last half hour of one shift and the first of the next. Then confusion came up when a unit from one shift would be held over in the field, duplicating the call sign of the next shift. "14A56 day, 14A56 day, meet 14A56 evening on Tac 2."
I think I've heard watch numbers as high as "7," maybe some divisions have even more. Back in the 5-8s days, though, you're right, there was somewhat of a drop in unit availability, but adjacent divisions had slightly different change-of-watch times, so the city was never stripped too bare. Venice may have been something like 08:00, 16:00, and 00:00, and next door in West L.A. perhaps 07:30, 15:30, and 23:30.
And all divisions ran two overlap "mid-watch" shifts: day-mids, along the lines of 11:00-1900, and PM-mids, 19:00-03:00 or so. Again it's now changed, but the primary watch units were always
* odd-numbered (14A3, 10X25, 1A47, 7A99, 2T15) and the mid-watch cars were even (14X2, 10X86, 1X48, 7X92, 6TL84).
* Except for West L.A. Division which, for some reason nobody could ever explain then or since, had two even-numbered primary-watch A-cars - 8A4 and 8A68. There were perfectly good odd-numbered RDs in West L.A., but for some lost-to-history reason ("we've always done it that way"??) they had an A4 and A68 instead of A3 and A67. But today, odd and even seem to be almost interchangeable everywhere.
My early tunable VHF High band radio and scanner days included hearing "Air 3" on most of the incidents located near me in the Westchester-Playa del Rey area.
Other than their first (April 1956) helicopter, "Air 1," which was specifically used for traffic observation and only occasionally for other stuff, LAPD's use of air units for patrol didn't begin until 1968 or 1969 with an experimental period using University - now Southwest - Division as the guinea pig, hence the "Air 3" designation. Its obvious success was followed by adding "Air 10" for the Valley and later Air 11 helped cover the metropolitan area. Other numbers have, of course, been added over the years. BTW, the original LAPD copter, 1956 Hiller, N5315V is still
airworthy and registered and flying - in England. See it at
http://www.airliners.net/photo/Hiller-UH-12C/0675473/L/
I'm in occasional contact with one of LAPD's first two pilots, long-since retired, of course. Since their airborne duty was traffic, both were motor officers, and both had flown copters in Korea. Since this is a RADIO site, here's something on-topic which I received from him about three years ago. It may be a RR re-run, if so, my apologies:
"Interesting sidelight might be radio in the first police helicopter back in 1956. It was actually a police motorcycle transmitter & receiver that sometimes worked & sometimes didn't. An interesting experience on one occasion when, from the air, we saw a suspect crawl under a house with several police ground units looking for him. I triggered the mic to give his location. Nothing. Thinking the situation could be dangerous if the suspect was armed, desperate measures were called for. I landed in a nearby baseball diamond and ran for a pay phone. You can imagine the dispatchers surprise when I answered, "This is Air One on a pay phone." Thinking it was a crank call, it was a chore convincing her of the authenticity of the call. Our message was finally relayed and the suspect apprehended. - Bob VanAken #4772 (hel. pilot #1)"