The First Marine Aeronautic Company, 12 officers and 133 men, operated an anti-submarine patrol of ten R-6 and two N-9 seaplanes, and six HS-2-L flying boats. Major Francis T. Evans was in command to July 18, 1918, when he was succeeded by Major David L. S. Brewster, who was in command of these Marines until they were ordered home January 20, 1919. Submarines and destroyers as well as aircraft, operated from Ponta Delgada. The establishment of a hospital afforded treatment and comfort not only to the personnel on duty there, but alike to men and officers passing through, and to the people on the islands, who suffered greatly during the influenza epidemic. Large warehouses, filled with stores, furnished supplies to ships stopping at Ponta Delgada.
In addition to the value of this base to our own operations, its potential value is seen from the fact that never after its establishment did German submarines appear off the island. Several operated in that region but were careful not to approach within reach of our guns.
"The occupation of the Azores," said Admiral Dunn, "was of great strategic value from the mere fact that had it been in possession of the enemy, it would have formed an ideal base for submarines, and as our convoy routes passed north and south of the islands an enemy base would have been a very serious obstacle for the successful transport across the ocean of troops and supplies."
All our submarine chasers, tugs and small craft sent to Europe stopped at the Azores for fuel, provisions and repairs. Our repair ship and station were found invaluable, particularly during the stormy winter when many merchant vessels broke down in the vicinity. Tugs were sent out to tow them in, repairs were promptly made, and they were sent on their way. In several instances, merchant vessels were rescued at distances of 400 to 500 miles from the islands. The relations between the American naval officers and Portuguese authorities in the Azores were most cordial, and this coöperation strengthened the ties between the United States and Portugal.
If Portugal had not been in the war as an ally, it would have been a tremendously difficult problem to have gotten across any of the yachts and sub-chasers, and a large portion of our destroyers, because they did not have the steaming radius to cover the more than 3,000 miles of ocean between us and the coast of Europe. But for the base in the Azores and Portugal's coöperation, we would have lacked a place to re-fuel in mid-ocean. Before the Azores was open to us we were forced to establish a mobile oil base at sea, moving the oilers secretly to fuel our destroyers as they went across. Discovery of such an oil base by the Germans would have been fatal to us, as sinking tankers and oilers was a task at which their U-boats were most proficient.
On May 20, 1919, the people of Ponta Delgada again did honor to men of the American Navy. On that day ships in the harbor were dressed, the town decked in flags, and there was general rejoicing at the arrival of the aviators on the first trans-Atlantic flight. A salute of twenty-one guns was fired by the Portuguese battery, and the Governor of the Azores and the Mayor of Ponta Delgada gave official welcome to Commander J. H. Towers and the officers and crews of the "Nancys," as those famous planes were called.
The Azores formed the central point in the flight from the United States to Europe. It was the evening of May 16, 1919, when the three giant planes swung out from Trepassy, Newfoundland, on the long "jump" to the Azores, a distance of 1,380 miles. When the goal appeared to be near, the worst foe of navigation appeared. A dense fog all but blinded the pilots, endangering the success of the flight and putting the lives of the flyers in peril. The NC-4 managed to ascend above the fog, and 15 hours and 13 minutes after leaving Newfoundland arrived at Horta, the emergency stop in the Azores, and after a delay of three days, due to bad weather, flew to Ponta Delgada. The NC-1 was forced to descend to the water 45 miles from the island of Flores, and half an hour later the NC-3 also descended not far from Fayal. Disabled by heavy seas, the NC-1 sank. Nothing was heard from the NC-3 for more than two days. Many people feared that she was lost, and there was general rejoicing when, after fifty-three hours on the water, drifting and taxiing 209 miles, she reached Ponta Delgada.
Early in the morning of May 26th, Commander Albert C. Read and his crew departed on the NC-4 for the 891-miles flight for Lisbon, carrying the good wishes of the people of the islands. Lisbon did honor to the fliers, who had made a new world record. Bells rang, whistles blew, and the guns of the shore batteries boomed as the thousands lined the water front to welcome the aerial voyagers. Portuguese in Lisbon as well as in the Azores took the deepest pride in the achievement of the great adventure.