The "Rocketdyne Powerjet 20" waterjet propulsion unit is a lightweight high-horsepower propulsion system for commercial and military marine applications. The unit, with only a 20-inch-diameter pumping element, and a take-off horsepower of 4,000 (2,100 rpm) with an available NPSH of 24.7 feet, has a flow rate of 24,300 gpm and produces 20,000 lbs. of thrust at zero boat velocity. This represents a significant performance capability. Thirty one units have alrady been supplied to Boeing's Marine System Division in Seattle for use in the Boeing Jetfoil passenger hydrofoil programme.

  • Corporate Authors:

    Diesel Engines Incorporated

    11225 West Bluemound Road, Box 7406
    Milwaukee, WI  United States  53213
  • Authors:
    • Heckart, C L
  • Publication Date: 1977-5

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00176837
  • Record Type: Publication
  • Source Agency: British Ship Research Association
  • Files: TRIS
  • Created Date: Jun 14 1978 12:00AM