struck the destroyer’s after engine room, spreading death and destruction and causing
Simultaneous with the agony of
Thus the scourging of the American fleet off Okinawa continued unabated, but once again the
Uncle Sam: Logistics Magician
CHAPTER FOURTEEN
Triumphs of logistics, though impressive, usually do not make “rattling good reading,” as one British historian wrote of the Napoleonic Wars. Yet the industrial and logistics feat of the United States of America fighting the first great two-ocean war on record is unrivaled in the history of humankind; and at Okinawa during the culminating battle of the Island War, as well as the greatest amphibious operation in military annals, the Americans had to overcome two unprecedented challenges.
First, it had to supply this unrivaled sea invasion at a distance of seventy-five hundred miles from its western shores. Second, it had to keep a fleet unsurpassed in numbers of ships and firepower constantly at sea for weeks at a time while feeding it with ammunition, food, fuel, airplanes, and those myriad lesser demands of an invader engaged on land and sea and in the air.
Even more than Admiral Spruance’s Fifth Fleet and Mitscher’s Task Force Fifty-eight, General Buckner’s Tenth Army was a monster of consumption. Between April 1 and 16 alone, no less than 577,000 tons of supplies were landed on the Hagushi Beaches, a record achieved in the face of two destructive storms and the attacks of the
Another problem caused by unforeseen success was that because planners had placed the unloading priority of spare vehicles lower than such vital supplies as ammunition, barbed wire, fuel, and food, these first-priority supplies had to be heaped on the beaches to get at the now-sorely-needed jeeps and trucks. This caused the breakdown of an elaborate plan for supply dumps to be established at carefully selected points. Night unloading under floodlights, suspended only during air-raid alerts, helped to unload waiting ships speedily, but also added to beach congestion.
On April 13 General Buckner was dismayed to learn that during the past twenty-four hours only 640 tons of artillery ammunition had crossed the beaches, not nearly enough to supply guns expending more shells than planners had anticipated. Buckner immediately gave priority to artillery shells, and in the next few days 3,000 tons daily were deposited ashore—enough not only for those tireless guns but also to begin building a reserve.
Okinawa’s “excellent network of bad roads”—all narrow and lightly surfaced—could not be traversed by American armored tractors and six-by-six trucks. Those early April rainstorms that had delayed unloading of ships also made the roads softer, compelling American engineers to try to harden them with sand mixed with coral. But the coral was not easy to dig and had to be blasted frequently. Without a rock crusher, the engineers sometimes dumped coral fragments as big as boulders on the roads, turning some of them into obstacle courses.
Erection of numerous pontoon causeways from the reefs to solid ground helped ease the continuing problem of moving supplies from ship to shore. LCTs—Landing Craft, Tank—and LSMs could tie up to the small ones, transferring their cargo directly into trucks. The bigger ships at the bigger causeways used cranes. Red Beach 1 opposite Yontan Airfield had the largest causeway: 1,428 feet long with a pierhead 45 by 175 feet. During the first few days sixty thousand men and 110,000 tons of cargo crossed the piers.
The most serious shortage was in shells for the 81 mm mortars—those unlovely “stovepipes” that probably have killed more soldiers than any other weapon devised—caused by the loss to
Fifth Fleet and TF 58 were supplied by a force of cargo ships and oilers commanded by Rear Admiral D. G. Beary from his flagship in the old light cruiser
Supply of the bombardment warships off Okinawa was made easy by Admiral Turner’s foresight in seizing the Keramas not only for a ship’s hospital but also to keep the big naval guns bellowing. A new class of LST ammunition ships equipped with mobile cranes shuttling between the Keramas and Ulithi and the Marianas was able to deposit cargos directly onto the decks of bombardment warships. They also were “type loaded,” that is, carrying ammunition for just one class of ship—say, five-inchers and 40 mm for destroyers.
Fuel for all these ships together with about a thousand carrier aircraft was supplied both by Admiral Beary and fleet tankers sailing from Guam to Okinawa or meeting thirsty ships at sea. Two huge fleet tankers left Guam every three days. Every day during the peak period of April 4-24 an average of 167,000 42-gallon barrels of fuel oil was consumed by the ships at and around Okinawa, plus 385,000 gallons of aviation gasoline. By May 27 nearly 9,000,000 barrels of oil had been consumed and 21,000,000 gallons of aviation gasoline, to say nothing of the delivery of less-vital but still-important items as 2,700,000 packages of cigarettes, 1,200,000 candy bars, and over 24,000,000 pieces of mail—to “gladden the heart” of American servicemen there. Suggestive of the extent of the logistical triumph occurring at the Great Loo Choo was the fact that four escort carriers were employed to protect replacement planes and pilots being ferried to the battle area, with seventeen more on the same mission between the West Coast and the Marianas.
Aside from the loss of those two ammunition ships, Japan’s naval and air forces did next to nothing to