Part 14

Much of this fascinating work is done by the Air Weather Service of the Air Force on routine daily flights, whether or not there is a tropical storm to be studied. As an example, they have made daily flights from Alaska to the North Pole and back, to keep tabs on the strange weather up there. In this way, there--and in other parts of the world--they get weather daily from places on land and sea where there are no weather stations, no merchant ships to report, and no people to act as weather observers. These flights are named after some bird common to the region. The North Pole flight is called "Ptarmigan"; others are called "Vulture," "Gull," etc. Special flights into tropical storms in the Atlantic and Caribbean are called "Duck" missions.

Some of these improvements in the hurricane-hunting methods of the Air Weather Service were mentioned in a report by Robert Simpson, a Weather Bureau meteorologist, who flew with the Air Force into "Hurricane George" in 1947. This was a big storm which appeared first over the ocean to the eastward of the Lesser Antilles. The squadron assigned to the job had been moved to Kindley Field, at Bermuda. Simpson saw Lieutenant Colonel Robert David, who was in command, and arranged for the flight in one of the new planes piloted by an experienced officer, Lieutenant Mack Eastburn.

Hurricane George, so-called by the Air Force boys, although such names were not then official, moved slowly and menacingly across the Atlantic, north of Puerto Rico, and headed toward Florida. Simpson was in it several times with the Air Force. On the first flight, they were in an old B-29 which had too many hours on the engines and had been a bad actor on previous missions, but this time it behaved like a lady and they picked up a great deal of useful information. On the next trip they had a new plane. Here is a part of Simpson's story:

"Success is a marvelous stimulant. While we had every right to be near exhaustion after our thirteen trying hours this first day in 'Hurricane George,' we did not get to bed early that night. There was too much to tell, and too much to discuss concerning the flight scheduled to leave early the next morning. This second flight promised to be even more lucrative of results than the first, for we were scheduled to fly in the newest plane in the squadron. It had only 100 hours or so in the air and contained many new features the other planes didn't have. Moreover it had bomb bay tanks and could leave the ground with nearly eight thousand five hundred gallons of gasoline.

"There were a few changes in the crew but Eastburn was the pilot again on the second flight. The takeoff was scheduled for 6:30 A.M. The storm was in a critical position as far as warnings were concerned, and the Miami office was anxious to get information as early as possible upon which to base a warning for the East Coast. 'George' was located over the eastern Bahamas and was moving slowly westward, a distinct threat to the entire Eastern Seaboard but immediately to the Florida coast."

The first hint of what was in store for the hurricane hunters that day turned up as they completed their briefing at the ship and prepared to board the plane. The engineer, in a last-minute checkup, found a hydraulic leak and there was a delay of a little more than an hour before that could be repaired. Finally they pulled away from the line and out to the end of the runway. Number 4 engine was too hot. There was another delay while further checks were made into the power plant. Finally they were off--all one hundred thirty-five thousand pounds. This was to have been a very long flight and every available bit of gasoline storage had been utilized.

The plan on this day was once again to make a try for data near the top of the storm, to verify and expand the startling information gained the preceding day. This plane had de-icer boots and they were not concerned about the rime ice that might tend to accumulate, as it had the day before. First, they were anxious to get certain data from a low-level flight, and to learn how effectively the radar could be used for navigating a large plane like the B-29 near the center of the storm. They went out at ten thousand feet again but continued to a point about eighty miles north of the storm at this elevation. By this time they had crossed about four of the spiral rain bands (the spiraling arms of the "octopus"). Here the plane turned downwind parallel to another of the rain bands and flew through the corridor to within viewing distance of the eye. They gradually descended as the base of the middle-level clouds lowered near the storm center. Leveling off at seven thousand five hundred feet, they were in and out of clouds with horizontal visibility low much of the time. However, there was scarcely a thirty-second period when the crew were unable to see the sea surface below. Navigation at this stage was entirely by radar. Again the amazing thing was the lack of turbulence throughout this flight. This was a really big storm. They were flying at only seven thousand five hundred feet through one of the most violent sectors, only twenty to thirty miles from the eye itself, yet they encountered nothing that could be described as important as moderate turbulence. Simpson's early experience in hurricane flying in 1945 in a C-47 had been repeated. They were flying in comfort under conditions which gave them a command of all the information needed to report the position and intensity of the storm. Simpson remarked: "What a difference this is from the battering flights at five hundred feet in the B-17's which have been standard operating procedure ('SOP') with the squadron until this season!"

The fascination of flying in comfort so near the storm center tempted them to continue this exploration of reconnaissance tactics somewhat longer. However, there were many other important things to be done on this flight and there was no time to waste. They picked their way across one of the bands to an outer "corridor" and retreated to a point about 150 miles from the center and once again began to climb. Perhaps in the fascination of traveling so close to the eye in such comfort they had become complacent. In any case, the events which followed in fast succession left no room for further complacency. They had climbed no higher than twelve thousand feet when someone spoke on the interphone with a bit of a quiver in his voice, "I smell gasoline." The hatches were opened and the plane vented hurriedly. Eastburn went aft to investigate and returned with a worried look on his face. He spoke to the engineer, who scrambled through the tube (connecting the fore and the aft sections of the plane) on the double. It was not until after he returned, about twenty minutes later, that the rest of the crew learned that they had developed a very serious gasoline leak in one of the hoses connecting the bomb bay tanks. Nearly a thousand gallons of gasoline had been streamed through the bomb bay doors. The engineer had completed the repair satisfactorily and, after a brief consultation with the plane commander, the crew consented to go ahead with the project.

"We climbed to twenty thousand feet," said Simpson in his report. "I was seated on the jump-seat between the radar operator and the engineer, looking through the tube. I saw from the tube a wisp of smoke drifting lazily toward the aft section. I do not recall my exact reaction but I am sure I was not a picture of composure when I called this to the engineer's attention. Nor did he stop to check with the plane commander before demonstrating that he also was a handy man with a fire extinguisher. The cause was a simple thing. As we climbed, the engineer had turned on the cabin heater, the insulation of which was a bit too thin in the tube so that the padding in the tube began to smolder. Perhaps this wasn't a very important item but it didn't contribute to the peace of mind of any of the crew, especially when it was remembered that only a few minutes earlier the bomb bay gas tank immediately beneath that tube had been leaking like a sieve. Again the plane commander checked with the crew. Again, but with noticeable hesitation, it was agreed that we would proceed with the project. Higher and higher we climbed. This time we reached the forty thousand feet mark with the base of the high cirrostratus still above us. So we leveled out, trimmed our tabs and set our course for the storm center. This time we were determined to descend from forty thousand feet in the eye to get a sounding there and then return home at low levels.

"We soon reached the base of the cirrostratus and entered the clouds. The de-icers were working. Again the data began to roll in along the same pattern as observed the previous day--at least for several minutes, until the interphone was filled with the excited voice of the right scanner with a spine-tingling report to the commander, 'Black smoke and flame coming from number 4.' At the same time the plane began to throb, roll and yaw. In less time than it takes to say it, the 'boys' in the front compartment of this B-29 became _mature men_--wise, efficient, stout-hearted men, each with a job to do and each one doing it with calculated deliberateness, yet speedily. There was grim determination here but no evidence of emotion. This magnificent tribute to topnotch training had an exhilarating effect upon me and tempered to some extent the abashment which I could not help feeling as a result of my helplessness in this situation, and the fear which clutched my heart.

"We were lucky! The single carbon dioxide charge released by the engineer extinguished the fire in the engine. Number 4 was feathered and began to cool but our troubles were far from over. The engineer had manuals and technical orders spread out on all sides of him and was working feverishly to restore some power to number 4, as the indicated air speed dwindled from 168 to 166 to 164 or 5, hovering precariously above the deadly stallout at 163. We were only a few miles from north of the center by this time but no one had recorded the data. We were too busy worrying. The pilot was in the process of putting the plane into a long glide to increase the air speed, when the left scanner claimed the interphone circuit with, 'Black smoke and flame coming from number 1.' This time we _were_ in real trouble. However, the engineer had anticipated further difficulty and was ready again. It was only a matter of seconds before the fire was out and some semblance of power had been returned to number 1. But we were still five hundred miles from the nearest land and very near the center of a granddaddy of hurricanes. So we declared an emergency and headed for MacDill Field."

Altogether, this was an ironical turn of affairs. An old plane had acted like a lady the day before and now a new one had frightened the crew with its mechanical troubles, but the newer methods of hurricane hunting, the "tricks of the trade," had fortunately taken some of the danger out of the storm itself. Otherwise the mechanical troubles might have combined with the weather to spell disaster.

_12._ TRAILING THE TERRIBLE TYPHOON

"_The workshop of Nature in her wildest mood._" --Deppermann

So far as anyone knows, the most furious of the typhoons of the Pacific are no bigger or more violent than the worst of the huge hurricanes of the Atlantic and the West Indies. They belong to the same death-dealing breed of storms, but the typhoons come from the bigger ocean; they sweep majestically across these vast waters toward the world's largest continent; and to the south and southeast lies a longer stretch of hot tropical seas than anywhere else on earth. Perhaps it is the enormous extent of the environment that explains the fact that in the average year there are three or four times as many Pacific typhoons as there are West Indian hurricanes. The greater excess of energy generated in this enormous Pacific storm region by hot sun on slow-moving waters is evidently released by a more frequent rather than a more violent dissolution of the stability of the atmosphere.

But there is something about typhoons that causes the people to look upon them with even greater terror than in the case of hurricanes. Likewise, the storm hunters tackle the job of tracking them with less confidence. Typhoons come from greater distances. Their points of origin may be scattered over a wider area. Much more often than is the case with hurricanes, there may be two or more at the same time. In their paths of devastation they fan out over a bigger and more populous part of the world. It takes more planes, more men and longer flights to keep up with typhoons than with hurricanes.

For many decades the people of the Far East struggled valiantly against the typhoon menace without much interest on the part of the Western World. Native observers reported them when they showed their first dangerous signs and then came roaring by the islands in the Pacific, including the Philippines, as they swept a path of devastation on the way to China or Japan. Men on ships equipped with radio sent frantic weather messages to Manila, Shanghai or Tokyo as they were being battered by monstrous winds and seas. Father Charles Deppermann, S.J., formerly of the Philippine Weather Bureau, who did as much as any man to help people prepare for these catastrophes, made an investigation to see why some of the typhoon reports from native observers were defective. He listed a few of the reasons.

One observer said his house was shaking so much in the storm that he was unable to finish the observation. He added that ninety per cent of the houses around him were thrown to the ground. Another common complaint was that the observers could not read the thermometers because the air was full of flying tin and wood. Another apologetic man put on the end of his observation a note that the roof of the weather station was off and the sea was coming in. The observer on the Island of Yap fled to the Catholic rectory and looked back to see his roof, walls, and doors blowing away, but he sent his record to the forecast office! Another observer on Yap was reading the barometer when it was hit by a flying piece of wood and the observer was knocked to the floor. One of the observers had excuses for a poor observation because he had to run against the wind in water knee deep. In another place, the wind blew two rooms off the observer's house at observation time. But the most convincing excuse for failure was from another town where the observer was drowned in a typhoon before the record was finished.

It is a strange fact, too, that one can look at all these records and the reports written by the Pacific storm hunters after they got going, and seldom see a vivid description of the fearful conditions in the typhoon. The white clouds turning grayish and then copper-colored or red at sunset. The rain squalls carried furiously along. The roar of giant winds and the booming sea as the typhoon takes possession of its empire in huge spirals of destruction. With death and ruin on all sides, nobody seemed to have the energy to write about it. The tumult passed, the wind subsided, the water went out slowly, and the observer wrote a brief apology for the bedraggled condition of the records.

In the same way, the typhoon hunters let their planes down at home base too tired to do anything except compile a few technical notes. The vastness of the thing seemed to leave them speechless. The plane went out on a mission and the base soon vanished, a shrinking dot on the horizon. The mind tired of thinking about the near-infinite expanse of Pacific waters, of thinking about running out of fuel in an endless search of winds, clouds and waves, of thinking about never getting back to that little dot beyond the horizon.

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.