Technical specification Jet-245 Information provided in this - - PowerPoint PPT Presentation

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Nov 09, 2022 576 likes •692 views

ALAMARIN-JET OY Technical specification Jet-245 Information provided in this presentation is subject to change without prior notice. Jet-245 basic data Power max. 235kW/320hp Rpm max. 4600 1/min Vessel displacement max. ~3,5t/7700lb

SLIDE 1

ALAMARIN-JET OY

Technical specification Jet-245

Information provided in this presentation is subject to change without prior notice.

SLIDE 2

Jet-245 basic data

Power

max. 235kW/320hp

Rpm

max. 4600 1/min

Vessel displacement

max. ~3,5t/7700lb (single jet, planing)

Unit weight ~95kg/209lb Maximum diameter of impeller 245mm/9.6” Entrained water 32l/8.45gal Materials Aluminum, high grade stainless steel, plastic

SLIDE 3

New revolutional installation

Combi-frame construction (patent pending) provides flexible installation options. Unit can be either inside (short tail) or outside (long tail) of the boat hull. 1. ”Long tail” installation.

Inspection hatch outside Maximum space inside the boat

SLIDE 4

New revolutional installation

2. ”Short tail” installation.

Inspection hatch inside Minimum distance outside

SLIDE 5

New revolutional installation

Boat builder point of view

Simple installation templates, planar surfaces
Flexible boat layout design, GRP mould inserts easy to use
One unit construction, no multiple stock

SLIDE 6

Technical advantages

Minimum practical drive flange distance from the transom on shaft line ~70mm.

SLIDE 7

Technical advantages

Compact and cost effective design:

Integrated steering cylinder.
Rear bearing lubrication in the engine compartment
Integrated reverse bucket hydraulic oil cooler.

SLIDE 8

Technical advantages

Serviceability and life cycle cost minimized:

BIG inspection hatch.
Stainless steel impeller.
Conical stainless steel impeller wear ring can be replaced.
Mechanical seal in front bearing housing (optional).
Needle roller bearing in rear end with long life time.

SLIDE 9

Performance

High cavitation limits, bollard pull max. 800+kg  amazing boat acceleration.
High efficiency @ 30-45kn.
Reverse pulling force 65% of forward thrust.
Extremely good steering response due to special steering nozzle design.

SLIDE 10

References

HTech A25 Manufacturer: HT Engineering Type: SAR-boat Length: 7,95m Beam: 2,85m Displacement: 2,7t Engine: 232kW@4000rpm, 1:1 Speed: 35kn