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Both ships were definitely filmed from Beaufighters - as proven by obstructions to the veiw: canopy framing and hardware later identified as including the latch for a ventilation louver (top-right). Note also at top-right the circular-reflector gunsight - clearly absent from the cockpit at bottom-left, but again appearing at bottom-right (where the pilot is thumbing his nose! ). Note glimpses of more interior details port- and starboard, respectively, in these latter two pics - as well as how spacious is the Beaufighter cockpit they reveal.
This sequence, ending about 8 or 10 minutes into the episode, is capped by the narration: "The 3-day Battle of the Bismarck Sea is a major victory of planes over ships. All 8 enemy transports are sunk. More than 3,000 Japanese soldiers perish. Only 4 destroyers escape."
But that was just the end of the segment - begun 3 or 4 minutes earlier, with yet more RAAF pics - again, looking very plausible for the actual time frame (early March, 1943) of the Bismarck Sea Battle:
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This type of Boston gunship, in particular, at the time of the Bismarck Sea battle was prevalent with RAAF 22 Squadron, however note - again, on both Beaufighters and Bostons - the absence of any squadron (two-letter) codes. This suggests only one RAAF squadron in the operating area - which I don't know was the case for 22 Squadron at Bismarck Sea. But whichever squadron these are from, they show many details of the early-fit planes of the time - including good looks at the Boston cheek pods, at right - and even inside one (bottom), with the cover removed to reveal the gun itself.
The above begins about 5 minutes in, with the narration: "In March 1943, American air reconnaissance discovers a major Japanese move to strengthen their hold on the rest of New Guinea. A troop convoy of 16 ships sets out from Rabaul, and heads into the Bismarck Sea". Some time later, the film returns to cover the subsequent reconquest and advance up New Guinea, including some great shots of ship camouflage:
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This episode, in particular, is really packed with reference pics of interest - the above being just a small fraction - and I'll be posting more shortly. Including LSTs - also spookily relevant, not least, to those that my friend Fred (RIP) served aboard - as well as the amtraks and other related amphibious gear, that I know will be appreciated by all you armor-heads out there !
So, stay tuned for all thatů