INCLINED-SHAFT PROPELLER PERFORMANCE CHARACTERISTICS

Most small naval craft utilize commercially available propellers on inclined shafts as thrusters. Information on the forces generated by inclined shaft propellers is scarce. In order to help the designer of small craft, an experimental program was undertaken to evaluate commercially available propeller performance when inclined to the oncoming flow. A series of four commercial propellers with pitch ratios, P/D, of 0.8, 1.0, 1.2, and 1.4 were characterized over a range of shaft angles, cavitation numbers and advance coefficients. Besides the usual shaftline thrust and torque, horizontal and vertical side forces were also measured. The results of these experiments support the previous assumption that a propeller on an inclined shaft may produce more forward thrust than the same propeller on a horizontal shaft. This paper contains propeller characteristic curves and lift- and side-force data which are directly applicable in the design of high-performance small craft.

• Supplemental Notes:
  • Presented at the spring meeting, Lake Buena Vista, Florida, April 2-4, 1973. Work sponsored by Naval Ship Systems Command, Washington, D.C. Naval Ship Research and Development Center No. 4127, April 1974, 53 pages, 6 References.
• Corporate Authors:

  Society of Naval Architects and Marine Engineers

  601 Pavonia Avenue
  Jersey City, NJ  United States  07306-2907
• Authors:
  • Peck, J G
  • Moore, D H
• Publication Date: 1973

Media Info

• Pagination: 21 p.

Subject/Index Terms

• TRT Terms: Inclinometers; Performance; Propeller shafts; Propellers; Shafts (Machinery); Vehicle design
• Old TRIS Terms: Propeller design; Propeller performance; Propeller shaft inclination; Shaft inclination
• Subject Areas: Design; Marine Transportation; Vehicles and Equipment;

Filing Info

• Accession Number: 00044478
• Record Type: Publication
• Source Agency: Naval Ship Research and Development Center
• Report/Paper Numbers: Paper G
• Files: TRIS
• Created Date: May 23 1973 12:00AM