towing the model designed, the pitch varying both axially and radially, and the virtually the same as caused in the actual boat by the thrust blades being very thick. This rendered it very difficult to get of the propeller. a fair value for the efficiency of the propeller. Considerable… … Five indicator cards were taken on each run; the times were FIG. efficiency depended the success of the entire undertaking. A sketch of the towing device is shown in Fig. 5. A 30-foot gasoline (petrol) launch with a 14-horsepower engine was used to provide the motive power. In order to have a…
Shipbuilding -- Periodicals · Shipbuilding industry -- Periodicals
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
