EFFECTS OF MID-CHORD FLAPS ON THE VENTILATION AND FORCE CHARACTERISTICS OF A SURFACE-PIERCING HYDROFOIL STRUT

Ventilation and side force characteristics of a NACA 16-012 strut with span-wise mid-chord flaps attached from 0.5 to 0.7 chord were determined. This strut configuration represented a strut system with retractable mid-chord flaps in the extended mode. Experimental results showed that such a strut system exhibits the advantage of a streamline strut at preventilation speeds (low drag) and the advantage of a blunt-based strut at ventilation/post-ventilation speeds (no side force reversal).

  • Corporate Authors:

    Naval Ship Research and Development Center

    Bethesda, MD  USA  20034
  • Authors:
    • Nelka, J J
  • Publication Date: 1974-11

Media Info

  • Pagination: 60 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00097561
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: NSRDC-4508
  • Files: TRIS
  • Created Date: Jul 24 1975 12:00AM