By Bruce Petty
A great deal has been written about the Battle for Saipan, including the Battle of the Philippine Sea, remembered today as having included “The Great Marianas Turkey Shoot.” However, certain events that could have turned the battle in any number of directions are often mentioned only in passing.
One of these events is the role played by one Martin PBM-3D Mariner aircraft of Navy Patrol Squadron 16 (VP-16) in locating the Japanese fleet as it sailed east for what both sides hoped might be a decisive naval battle. Admiral Raymond Spruance, in overall command of Operation Forager, the campaign for the capture of the Mariana and Palau island groups, was receiving reports from American submarines as to the movement of Japanese ships under Admiral Jizaburo Ozawa that were heading in the direction of the Marianas. However, Spruance’s carrier-based planes under Admiral Marc Mitscher of Task Force 58 had limited range and little luck in pinpointing the exact location of the Japanese ships.
The Allies Go On the Offensive
Likewise, Spruance, always the cautious warrior trying to think like his Japanese opponent, was concerned that Ozawa might try to draw him west while splitting his force to do an end-around and attack the U.S. transports off Saipan. That is when he ordered a number of available PBM-3D flying boats up from the Marshall Islands. His hope was that with their longer range they might locate the Japanese fleet and thus help him make his decision as to how best to meet the coming threat.
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