AJ 285 Waterjet

The newest jet in the COMBI-FRAME series

The AJ 285 is the newest jet in the COMBI-FRAME series. The patented Combi-Frame technology allows designers, builders and owners maximum flexibility when locating the position of the propulsion system within the vessel.

Choosing between 2 different hull installation inserts allows the jet to be installed either in LONG TAIL or SHORT TAIL configuration. Following the success of AJ 245 many customers requested the combi-frame installation method for larger, more powerful vessels. AJ 285 is suitable for engines up to 500HP. Applications include workboats, military vessels, pleasure craft and many more.

Features include:

  • Conical impeller housing
  • Grease lubricated main bearing
  • Water or grease lubricated rear bearing
  • Integrated oil cooler
  • Patented COMBI FRAME installation method
  • Integrated steering cylinder
  • Universal hydraulic system

AJ 285 is compatible with AJ ACU and AJ SIGMA Controls.






Dimensions Long tail Short tail
A 503 mm / 19,82 in 504 mm / 19,83 in
B 1637 mm / 64,45 in
1637 mm / 64,45 in
C 698 mm / 27,47 in 698 mm / 27,46 in
D 454 mm / 17,87 in 454 mm / 17,87 in
E 327 mm / 12,88 in 725 mm / 28,55 in


  • Pump type
    Mixed flow

  • Jet construction
    Aluminium / Stainless Steel

  • Max impeller diameter
    288mm / 11.3″

  • Max impeller shaft RPM
    3700 1/min

  • Max input power
    368 kW / 500 HP

  • Jet weight
    181kg / 399lbs

  • Reverse deflector control

Contact us for more information

If you want to learn more about this or our other models for your particular specifications and application, we are here to help you.

Mr. Jukka Kukkula
Mr. Jukka Kukkula
Head of Sales and Customer Support
Mr. Stephan Öström
Mr. Stephan Öström
Area Sales Manager