Into this ominous arena the American fleet nosed its way, island by island, in the war against the Japanese. By methods which had been handed down from older generations, strengthened by all the modern improvements that could be added, the Americans tried to keep track of tropical storms in this enormous region where trade winds, monsoons and tropical winds hold their several courses across seemingly endless seas, but here and there run into conflict or converge in chaos. Twice when their predictions were not very good, the fleet suffered and in the second instance the typhoon humbled the greatest fleet that ever was assembled on the high seas. The Commander-in-Chief, Pacific, demanded reconnaissance without delay. As men do in time of war, the Navy aerologists moved swiftly and effectively to meet the challenge. In fact, they had anticipated it in part and had plans in the blue-print stage, even before the big Third Fleet took its brutal beating in December, 1944.
Most of the stimulus came from the Atlantic side, where organized hurricane hunting had begun in the middle of the year. But it was not long until the Japanese were driven out of the typhoon areas. In June, 1945, they were being blasted out of Okinawa as typhoon reconnaissance was beginning. In fact, the first men to go out to penetrate a typhoon had to be careful to keep away from Okinawa. By that time the Japanese had committed all their fading sea and air power, including their last remaining battleship, to the defense of Okinawa, and after June, the U. S. Navy had no real enemy except the typhoon.
Beginning in June, 1945, the Navy airmen and aerologists flew two kinds of missions. Almost daily they went out to check the weather, and if they found a full-grown typhoon or one in formation in an advanced stage, special reccos were sent out. One flight went out as soon as it was daylight and the second took off about six hours afterward, early enough to make sure that the second would be completed by nightfall. This was rather tough going. As one of the aerologists pointed out, Pacific distances were so large that if they were considered in terms of similar distances in the United States, a common mission would be like a take-off from Memphis and a search of the area of a triangle extending from Washington, D. C., to New York City and back to Memphis.
Aircraft used by the Navy were Catalinas (PBY’s), Liberators (PB4Y-1’s), and Privateers (PB4Y-2’s). All were four-engined, land-based bombers, some fitted with extra gasoline tanks for long ranges. Before leaving base in the Philippines or the Marianas, the aerologists briefed the crews. In flight, the aerologist directed changes in the course of the plane, but the pilot could use his own judgment at any time when he thought the change might exceed operational safety. From June through September, 1945, the Navy flew a total of one hundred typhoon missions, averaging ten hours each. Lieutenants Paul A. Humphrey (a Weather Bureau scientist after the war) and Robert C. Fite, both of whom flew constantly on these missions, gathered data from all flight crews, and at the end of the season wrote descriptions of five typhoons which were more or less typical.
Some of the most interesting of these missions were directed into the big typhoon which came from the east, crossed Luzon in the Philippines and roared into the China Sea, in the early part of August. On the fourth of the month, one of the Catalinas was checking the weather three hundred miles east of Leyte and saw a low pressure system developing a small tropical disturbance. It grew, was checked daily, and on the sixth blew across Luzon and reached its greatest fury in the South China Sea on the seventh.
The first plane that went into the typhoon in this position was directed to the right and north of the center, to take advantage of tail winds and to spiral gradually into the center. As it approached the center, the plane climbed to about five thousand feet, and the crew had a beautiful panoramic view of the clouds piled up on the outer rim of the eye. On account of the awful severity of the turbulence the plane had experienced around the eye, they descended again and flew to home base at altitudes between two hundred and three hundred feet.
On examination of the aircraft after the battered crew had let down at home base, it was found that the control cables were permanently loosened, the skin on the bottom of the port elevator fin had been cracked away from the fuselage, one Plexiglas window was bowed inward, and the paint was removed from the leading edges. Because of the violence of turbulence on this flight, the nervous crew of the second recco plane on that day was instructed to reconnoiter but not to try to go into the center.
On the fifth of September a violent typhoon formed between the Philippines and Palau and moved northwestward toward Formosa. On the tenth a recco plane ran into trouble in this storm. Twice while flying at two thousand feet, it met severe downdrafts, losing altitude at five hundred to one thousand feet per minute while nosed upward and climbing at full power. The eddy turbulence was extremely severe and most of the crew members became sick. The second recco plane on that date ran into violent turbulence also, and at times it was almost impossible for the pilot and co-pilot to keep the plane under control.
And then disaster struck! By the end of September the Navy storm hunters had gone out on one hundred missions into the hearts of typhoons and, although many of them had been frightened and badly battered, there had been no casualties. They made up a report as of September 30, commenting on their phenomenal good fortune on these many flights. But on the very next day, October 1, one of the crews which had been making these perilous missions departed on a flight into a typhoon over the China Sea. Those men never came back. No one had any idea as to what had actually happened, but the members of other crews could well imagine what might have happened, and whatever it was, it must have ended in typhoon swept waters where none of the storm hunters expected to have any chance of survival. It could have happened in the powerful winds around the eye or in one of those bands extending spirally outward from the center, filled with tremendous squalls and fraught with danger to brave men venturing into these monstrous cyclones of the Pacific. The report—even before this sequel—had stressed the hazardous nature of reconnaissance.
In these Pacific missions, the pilots and aerologists, even without radar, had become aware of the doughnut-shaped body of the storm with squall bands spiraling outward (the octopus arms). But they got very little information that they thought would help in predicting the movements of typhoons, except the old rule that the storm is likely to continue on its course unchanged, tending to follow the average path for the season. The explorations by aircraft as a means of getting data were far more useful in locating storms and determining their tracks, however, than any other methods.