Expeditions organized or participated in by the Smithsonian . Fig. 138.—Langley machine in flight over Lake Keuka, May 20, 1915. NO. 3 SMITHSONIAN EXPLORATIONS, I915 5 Short flights were made from the ice. On March lo. after astationary propeller test on the ice showing a thrust of less than 300pounds, the aeroplane was headed down the lake against a wind of. Fig. 139.—The Column of Progress at the Panama-Pacific Exposition, by Walcott. six miles per hour for a trial flight. She ran over the lake at fairspeed with but four cylinders working. The poise on the ice w
Expeditions organized or participated in by the Smithsonian . Fig. 138.—Langley machine in flight over Lake Keuka, May 20, 1915. NO. 3 SMITHSONIAN EXPLORATIONS, I915 5 Short flights were made from the ice. On March lo. after astationary propeller test on the ice showing a thrust of less than 300pounds, the aeroplane was headed down the lake against a wind of. Fig. 139.—The Column of Progress at the Panama-Pacific Exposition, by Walcott. six miles per hour for a trial flight. She ran over the lake at fairspeed with but four cylinders working. The poise on the ice wassteady. After a short run the rear skate arose clear of the ice ; thenthe front skates of the machine were sustained in the air for soiiie 75feet, as shown by the measured breaks in the traces on the ice. The ii6 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 66 machine then landed gently on the ice owing to the falling off of themotive power. In May and June several short test flights were made over thewaters of Lake Keuka as shown in figure 138.
Size: 1446px × 1727px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectscienti, bookyear1912
