7/16/2019 FF-Series Fact Sheet

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Fact sheet

KamewaTM

waterjets FF-series

Robust reliability

Kamewa FF-series waterjets cover thepower range between 100 and 2000 kW.Typical applications include naval craft,search and rescue boats, pilot boats, workboats and pleasure boats.

The FF-series waterjet units aremanufactured from strong, corrosion-resistant materials. Only the impeller, shaftand steering/reversing rods are made ofstainless steel. All the other componentsare of aluminium construction based onthorough strength calculations to minimiseweight.

The inlet duct is fabricated from marine

aluminium plate for light weight, optimumhydrodynamic performance and resistanceto corrosion.

The pump is a single-stage axial-flowdesign providing a high volume flow withgood pulling thrust in a wide speed range.

Usually, the FF-series jets do not requirereduction gears.

All FF-series waterjets can also besupplied as booster units i.e. jet unitswithout steering components.

On delivery, the Kamewa FF-serieswaterjets are painted and complete with

structurally dimensioned inlet ducts foreasy installation by bolting or welding.

Rolls-Royce - the professional supplier

Rolls-Royce is the world leader inresearch, development and manufactureof waterjets for commercial, naval andpleasure-boat markets. It is also the onlysupplier in the industry with its own, fullyequipped hydrodynamic research centre.The centre continuously develops andtests new products and refines theexisting product line.

All Kamewa FF-series waterjets areproduced using the latest 3D CAD/CAMtools to ensure high level of quality andaccuracy in design and manufacturing.

Rolls-Royce also utilises its own

proprietary, computerised design program,which contains the latest waterjettechnology data combined with the actualresults from earlier waterjet installations.

Aided by this program, individualinfluences and the combined effect of all

the existing outlet diameters and bladepitch angles will be studied to optimise theperformance of every installation.

Kamewa FF-series sets new standards forsmall and medium-size applications ofwaterjets in terms of performance,

economy and reliability.

Wherever you are, Rolls-Royce´s globalservice network will be there to provide

extensive through-life support for Kamewawaterjets.

The Kamewa FF-series waterjets are as tough as jobs they were created for

Kamewa FF - seriesThe FF-series waterjets are as tough as jobs they were created for

PROFESSIONALS CHOICE

FF-series waterjet (FF67)

7/16/2019 FF-Series Fact Sheet

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Fact sheet

Rolls-Royce Oy AbP.O. Box 579,FIN-67701 Kokkola, FinlandTel: +358 6 832 4500 Fax: +358 6 832 4513www.rolls-royce.com

 © 2002 Rolls-Royce plcWhilst this information is given in good faith, nowarranty or representation is given concerning suchinformation, which must not be taken as establishingany contractual or other commitment binding uponRolls-Royce plc or any of its subsidiary or associatedcompanies.

Displacement table

*) The table should be used forguidance only and based onappropriate hull size and weight ratio

and hull lines. Best performance will beachived by selecting a larger waterjetsize for craft displacements entering

into the shaded area.

The waterjet unit can be installed onboth displacement and planing crafts assingle, twin, triple or quadruplesystems. Displacement hull applicationrequire a larger jet diameter than a fastplaning hull at same power.

Consult Rolls-Royce in all cases for asize selection.

The data is subject to change by the manufacturer without prior notice 

SUPERIOR EFFICIENCY

70315001920159260390°32201287128013602000FF67

49513251863155254090°28001150115015101800FF600

3959601963126546090°24001045110016501500FF550

3508401525133345090°220097095019001400FF500

1755101081120236093°158584288021001100FF450S

1924851338104932793°194380386023001000FF41

145325114491129993°16607247502500700FF37

52270676110728593°10707006502800530FF340

40242626106529193°12036515203000500FF310

2815555181623193°10605414303500370FF270

2512440088527493°8555744104000260FF240

insidetransom[liters]

dry unit[kg]GFEDCBA

shaftspeed[rpm]

sprintpower[kW]size

Entrained

waterWeight

Dimensions

[mm]MaxMaxWaterjet

Max recommended displacement per waterjet unit

for planing fast craft

39

30

24

1914

11

9

7,5

6

4

3

0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42

FF240

FF270

FF310

FF340

FF37

FF41

FF450FF500

FF550

FF600

FF67

Axial flow:

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Maximum displacement per waterjet unit [ton]