On January 26th, 1911, first successful flights were made with a hydroaeroplane, at the Winter camp at San Diego, Calif. This had two floats tandem. One was finally adopted and great success was achieved, and remains standard at the present time. With this machine various experiments were made. It was altered in a tractor for one occasion, it was lifted on board warships; made into triplane, etc. In 1912 he brought out his present type of flying boat. This is being rapidly developed and minor changes in details are made in practically every machine put out. In May, 1913, he produced a special 4-passenger flying boat for a customer on special order. Note.--In addition to those tabulated, special small racing machines have been built, as well as similar machines with extra sections simply added either side for Army use. ---------------------------+--------------------+----------------------+-------------------- Model and date. | ~Type D.~ | ~Type E.~ | ~Type F.~ | ~1913.~ | ~1913.~ | ~1913.~ ---------------------------+--------------------+----------------------+-------------------- ~Length~ feet (m.)| 26-2/3 (8.10) | 27-1/3 (8.33) | 27-1/3 (8.33) ~Span~ feet (m.)| 26-1/4 (8) | 31-1/4 (9.50) | 38-1/3 (11.70) ~Overall~ feet (m.)| 33-1/12 (10) | 36-1/4 (11) | 41-2/3 (12.70) ~Area~ sq. feet (m squared.)| 214 (19-1/2) | 288 (26-1/4) | 421-1/2 (39) {total lbs. (kgs)| ... | 1700 (771) | ... ~Weight~ { | | | {useful lbs. (kgs)| ... | 500 (227) | ... ~Motor~ h.p.| Curtiss | 80 Curtiss | Curtiss ~Speed~ m.p.h. (km.)| ... | 59 (95) | ... ---------------------------+--------------------+----------------------+-------------------- Remarks.-- | Land service, but | Fitted either with |Used to date only |is also made fitted | wheels, pontons, or |as military tractor | with floats. | boat. |or heavy flying boat. | Panels. | _Vilas boat._ | _McCormick boat._ | | Boat 24 ft. long. |Boat 25 ft. long 4 ft. | |Beam 54-1/2 ft. long. |wide. Freeboard 46 | |Height 41 ins. long. |ins. Cockpit 84 ins. | |Cockpit 3 ft. long by |long by 46 ins. wide. | | 4 ft. 2 ins. wide. |Length of tail, incl.