Propeller-loudness Charts for Light Airplanes
Download or Read eBook Propeller-loudness Charts for Light Airplanes PDF written by Harvey H. Hubbard and published by . This book was released on 1947 with total page 594 pages. Available in PDF, EPUB and Kindle.
| Author | : Harvey H. Hubbard |
| Publisher | : |
| Total Pages | : 594 |
| Release | : 1947 |
| ISBN-10 | : STANFORD:36105024795390 |
| ISBN-13 | : |
| Rating | : 4/5 (90 Downloads) |
Book Synopsis Propeller-loudness Charts for Light Airplanes by : Harvey H. Hubbard
Book excerpt: Calculations of the rotational-noise and vortex noise loudness levels at distances of 300 and 1000 feet have been made for a large number of propellers in forward flight of 50 to 200 miles per hour and for engine ratings of 100 to 300 horsepower. Propellers of two, four, six, and eight blades, diameters of 6, 8, and 10 feet, and rotational speeds of 1000 to 2000 rpm are considered. Calculated results are presented in chart form for convenience of designers of propellers for applications in which loudness is an important consideration.
