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Discussion: Miracle at Truk: Operation Hailstone

Good focused article by Dabbs, however there is a notable inaccuracy.

U.S. Navy battleships and cruisers during World War II did not use steam catapults. Instead, they used gunpowder-fired catapults, most notably the Type P Mark 6, which used a propellant cartridge derived from a standard 5-inch (127mm) naval gun shell to launch floatplanes (such as the Vought OS2U Kingfisher or Curtiss SOC Seagull).


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Key Details of WWII Battleship & Cruiser Catapults:
  • Power Source: Gunpowder-fired cartridges stored safely in ship magazines, avoiding the need for heavy air compressors, high-pressure storage tanks, or steam plumbing.
  • Performance: The Type P Mark 6 could accelerate a roughly 3.25-ton floatplane up to a launch speed of 61 knots within a very short track distance (about 20 yards).
  • Historical Context: While WWII aircraft carriers primarily used hydraulic catapults (or deck-run takeoffs), steam catapults were not adopted by the U.S. Navy until the 1950s after being developed and refined by the British post-war.



 
Truk is a good place to visit if you ever get there chance. I did, back in 1979. Especially if your a diver.
Amazing the amount to wrecks and stuff still there from the war.
 
Good focused article by Dabbs, however there is a notable inaccuracy.

U.S. Navy battleships and cruisers during World War II did not use steam catapults. Instead, they used gunpowder-fired catapults, most notably the Type P Mark 6, which used a propellant cartridge derived from a standard 5-inch (127mm) naval gun shell to launch floatplanes (such as the Vought OS2U Kingfisher or Curtiss SOC Seagull).


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Key Details of WWII Battleship & Cruiser Catapults:
  • Power Source: Gunpowder-fired cartridges stored safely in ship magazines, avoiding the need for heavy air compressors, high-pressure storage tanks, or steam plumbing.
  • Performance: The Type P Mark 6 could accelerate a roughly 3.25-ton floatplane up to a launch speed of 61 knots within a very short track distance (about 20 yards).
  • Historical Context: While WWII aircraft carriers primarily used hydraulic catapults (or deck-run takeoffs), steam catapults were not adopted by the U.S. Navy until the 1950s after being developed and refined by the British post-war.




Fascinating. Thanks for the insights.
 
Man... I love these historic stories. I have always been found of the Kingfisher. Here is a model I built years ago of this lovely little plane.

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It is one of the unsung weapons of the war. These were in the air all the time acting as spotters, recon, directing cannon fire, and as rescue. And I might add, flying one of these during an engagement showed great courage in itself, as they were slow, poorly armored, and had limited maneuverability. But without this little plane the pacific operations would have been greatly hampered.
 
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