The HM Series comprises a range of highly efficient inducer style waterjets which are usually driven from a marine engine via a reduction gearbox and are suitable for propelling craft typically in length from 17 to 60 metres.

Due to the specialist nature of HM Series Waterjet installations it is crutial all aspects of propulsion for these projects are discussed with an authorised HamiltonJet Distributor

Model A
(mm)
B
(mm)
C
(mm)
D
(mm)
E
(mm)
F
(mm)
G
(mm)
HM422 1380 484 2082 1090 940 960 964
HM461 1280 420 2048 1439 1016 900 1040
HM521 1424 475 2350 1630 1200 1000 1200
HM571 1561 530 2585 1800 1300 1000 1285
HM651 2105 593 3360 1650 1470 1100 1500
HM721 2381 667 3779 1860 1612 1250 1660
HM811 2672 750 4252 2100 1800 1400 2000

Note: The HM422 has a 5° downangle on the mainshaft - all other HM Series waterjets are 0°

Hamilton Jet HM Series Power/RPM Inputs

Jet Model HM422 HM461 HM521 HM571 HM651 HM721 HM811
Maximum Sprint 
Power (skW)
900 1100 1400 1700 2200 2700 3500
Input RPM Range 2020-2300 1795-1900 1587-1710 1448-1569 1305-1407 1149-1236 1030-1104
Maximum Continuous 
Power (skW)
  900 1200 1400 1800 2200 2800
Inpu RPM Range   1680-1800 1508-1624 1357-1470 1220-1316 1073-1154 955-1025