wdolson -> RE: DBB-c a/c replacements (1/14/2015 10:58:28 PM)
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ORIGINAL: Symon 38 squadrons enter the game equipped with SBD-3s, for a total of roughly 395. LA has a production plant that makes 21/month for 18 months for a total of roughly 380. Grand total roughly 775. Actual production of dash 3s and 4s was roughly 1365. Shortfall of roughly 590 airframes. But one must factor in airframes used for training and reserve, so I’ll use an out-of-my-butt estimate of 135 (roughly 10%), leaving a shortfall of 455 airframes. Bottom line, you don’t want to double up the LA production because it extends over to the dash 5s when the airframes upgrade. But there was a step-up in production with the expansion of the El Segundo plant. However, those production steps can’t be modeled too well. It was a simple seven month bump to the dash 3s (I don’t count the dash 4 as a separate airframe, because it was just a dash 3 on 24 volts with a few provisions for new toys; none of which is representable in-game). The Babes solution would be 7 monthly “magic” convoys, each with roughly 50-60 SBD-3s for distribution to the pool. Think of it as an early Tulsa. Since dash 4 deliveries began in October, the first “magic” convoy arrives in November. Of course, they stop in May ’43 with the introduction of the dash 5. I think that would do the trick without getting too far outside the box. One would get 1160 ariframes out of a total of 1365 produced. Considering the 135 held back for out-of-game reserve and training, that's a shortfall of only 205 airframes out of the historical production schedule. It works for me and it's simple, easy to implement, and doesn't dick with the stock production values. Comments ?? JWE From what I've read, almost all SBDs held back for training were obsolete versions. In 1943 new pilots learning to land on carriers on Lake Michigan were dropping battle weary SBD-2 and -3s into the lake. An SBD-3 that was a veteran of Midway was recovered from the lake. Here are my numbers. Model Start Date End Date Number Prod/Month Prod Game Notes SBD-3 ? Oct-42 584 21 First 174 diverted from French order. According to the jim Baugher web site, a few were lost before the war, as early as Sept 1941. SBD-4 Oct-42 Apr-43 780 111.4 0 Started arriving end of 1942, first production used Operation Torch. SBD-4 withdrawn from Atlantic soon after and SBD was not used in the Atlantic again until -5 was in production. SBD-5 Feb-43 Apr-44 2965 197.67 21+67 A-24 168 SBD-3 Equivalent A-24A Oct-42 Apr-43 170 SBD-4 Equivalent A-24B Feb-43 Apr-44 615 SBD-5, 60 later returned to the Marines Here is my analysis of SBD units arriving with -3/-4s. It was in an Excel spreadsheet. UnitNumber Name Probable Version in Real World Type AircraftType ReadyCraft DamagedCraft 1696 VS-2 SBD-3 7 487 17 1 1702 VS-3 SBD-3 7 487 19 0 1703 VB-3 SBD-3 7 487 18 0 1708 VS-5 SBD-3 7 487 17 3 1709 VB-5 SBD-3 7 487 18 0 1731 VB-9 SBD-3 7 487 18 0 1761 VB-16 SBD-3 7 487 36 0 1776 VS-71 SBD-3 7 487 16 0 1777 VS-72 SBD-3 7 487 15 0 2217 VRF-1B SBD-3 5 487 24 0 2221 VRF-3B SBD-3 5 487 24 0 2225 VRF-5B SBD-3 5 487 24 0 2625 VMSB-242 SBD-3 7 487 0 2 246 6 1676 VC-26 SBD-4 7 487 9 0 1677 VC-28 SBD-4 7 487 9 0 2575 VMSB-133 SBD-4 7 487 0 24 2576 VMSB-134 SBD-4 7 487 0 24 2622 VMSB-235 SBD-4 7 487 0 18 2623 VMSB-236 SBD-4 7 487 0 18 2630 VMSB-245 SBD-4 7 487 0 24 2646 VMSB-331 SBD-4 7 487 19 0 2647 VMSB-332 SBD-4 7 487 24 0 2649 VMSB-341 SBD-4 7 487 21 0 2693 SB Det 1 SBD-4 7 487 2 7 84 115 In short 246 + 6 damaged would arrive as -3s and 84 + 115 damaged would arrive as -4s. The spreadsheet is available to anyone who wants it. You got 38 squadrons and I only found 24 (I think this was from stock). I may have missed some. I didn't include 4 Marine SBD units that were markets 9999. PBY production is also off in game. The -5 was discontinued at the end of 1942 in favor of more -5A production, but the -5 and -5A continue production in close to equal numbers for the entire war. The USN got a handful of -5s in 1944 that were diverted from a British order, but that's the only -5s they got after 1942. Bill
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