AN EXPERIMENTAL STUDY OF A SERIES OF FLAPPED RUDDERS

Water tunnel experiments were performed to determine the freestream characteristics of a series of twelve rudders with systematic variations in the amount of flap area and flap balance. The results include plots of lift, drag, rudder moment and flap moment coefficients for a complete range of angles of attack and flap deflections. A comparison is made of the effectiveness of all-movable rudders, rudders with a fixed skeg and movable flap, and rudders with movable skegs and flaps. Maximum flap moments with zero balance are compared to the maximum moment of a balanced all-movable rudder.

  • Corporate Authors:

    Massachusetts Institute of Technology

    Department of Ocean Engineering, 77 Massachusetts Avenue
    Cambridge, MA  USA  02139
  • Authors:
    • Kerwin, J E
    • Mandel, P
    • Lewis, S D
  • Publication Date: 1971-7

Media Info

  • Pagination: 49 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00025714
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: 71-19 Final Tech
  • Contract Numbers: N00014-67-A-204-0020
  • Files: TRIS
  • Created Date: Mar 28 1973 12:00AM