Arizona republican., 1920-12-26
MODERN VESSELS NOW UNDER NAY
 WILL GIVE ]. ]. POWERFUL NAVY
Four New Types Among 40 Vessels Now Under Con- struction for United States Fleet
[RepubIioan A. ?. Leased wIre1

"
 WASHINGTON. Dec. 25-Among the 14O vessels under construction for the navy are four types new to the battle fleet but long in use by the other prinical maritime powers. They are the battleship cruiser type, the scout or light cruiser the airplane carrier and the fleet submarine.
 The battle cruisers will be of great speed, light armor, long cruising ra- dius and strong offensive armament, the ships being designed primarily for ranging work ahead of the main body and for action at long rance against vessels of their own class. They are to have a speed of slightly more than S3 knots (about 40 miles) an hour and will carry. eight 16-inch guns mounted two in a turret.
 The ten light cruisers also will function as scout cruisers. They will have speed of 33.7 knots and will carry an exceptionally heavy arIna- ment for vessels of their class, mount ing 12 six-inch guns. They are de- signed to develop 90,o00 horse power. half that of the battle cruisers.
 One of the most interesting of the new types is the aircrift carrier Lang ley, formerly the collier Jupiter This vessel is being built along the line ol l the general boards policy that aircraft carriers should be combantants whose i speed and other characteristics will permit of their use with the fleet at i sea. The Langley will carry in the neighborhood of 15 planes of both the naval and military scouting types. This ships flying deck will consist og a huge platform, 5s feet above the ! water line extending from bow to i stern, distance of about 525 feet and with an amidships width of 65 feet The planes will be housed be- low on the hangar deck, when not in use and will be carried to the flying deck on elevators. Catapults will be provided on the flying deck to project the planes into the air and give them l the necessary momentum for a start Arresting devices will be rigged on the flying deck to permit of landing on the deck while the Langley is under way Huge cranes also will be installed to pick planes out of the water.
 Beneath the flying deck other tray cling cranes will be provided to hois
 aircraft from the hold spaces and foi carrying them to machine shops. as sembling spaces and to the elevators
 shop facilities for repairs will in
 elude a completely equipped machin.
 shop. wing repairing shop. moldine | rooms.
 A method for providing smoke pipe: without breaking the flying deck area is devised for the Langely. The shiI
 will have two smoke tunnels. one or each side. clear of the flying deeA and inter-conneeted so that the smoke may always be discharged on the Ice
 side and thus not interfere with ths landing or discharge of aircraft
 The fleet, submarines building mum
 Der six. Six others authorized have not yet been contracted for. Then
 cruising radius, enabling them to ac. company the fleet under practically al
 conditions and new structural design:
 proof from depth charges. The sub
 with a displacement of about 200l
 tons. The propelling machinery fol
 surface cruising will be two maiT
 Diesel engines aft. The other Diesel:
 forward will drive electric generator. which will provide current for the tive main electric motors to propel tht { estimated surface speed is 20 knot. and. the submerged speed is 10 knots 2 Tn addition to these new types, Sec retary Daniels and the general boarS have recommended the construction 2 during the next three years of thre' other types heretofore unknown in tn l United States navy. They are the de } stroyer leader, long range cruising
 submarines and mine laying subma rines similar to the German U4-117.