Everllence System / Package

Alpha Naval Propellers

Name: Alpha Naval Propellers
Brand: Everllence (formerly MAN Energy Solutions)

Alpha naval propeller and aft ship solutions in the 2 to 50 MW shaft power range: CPPs, monoblock and replaceable-blade FPPs and bolted adjustable designs, with low underwater noise, shock resistance and ice-class options.

Description

Alpha naval propellers from Everllence (formerly MAN Energy Solutions) are customized propeller and aft ship solutions for navy and patrol vessels, covering propulsion requirements in the 2 to 50 MW shaft power range.

Configurations

Controllable pitch propellers (CPP), including full feathering designs
Fixed pitch monoblock propellers
FPPs with replaceable blades
Bolted adjustable designs with tailored blade configurations

Key features

Higher cavitation inception speeds, minimal hydro-acoustic signature and suppressed underwater-radiated noise
Redundancy for mission-critical conditions
Shock-resistant system design from propellers and shafting to propulsion controls; Alphatronic control panels certified to 10 G in 10 ms, cabinets 20 G, sensors up to 320 G in 3.3 ms
Optimized propeller shaft strut arrangements verified by CFD and model tests
CPPs and bolted FPPs available up to the highest polar ice classes

References

Offshore patrol vessel P571 Ejnar Mikkelsen: CPP to DNV/GL Ice 1A, powered by two 8L27/38 engines via twin-in/single-out gearbox
VBS 2150 CP propeller: 7.6 m diameter, 36 t hub plus five blades of 26 t total; approx. 200 t complete with shafting

Applications

Combat frigates, command support vessels, minehunters, ice-breaking offshore patrol vessels and shallow-draft coastal supply cutters.

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V12, V16 and V20 high-speed marine diesel engine with 175 mm bore, 1,440–4,400 kW at 1,500–2,000 rpm, methanol-ready, for propulsion and gensets on naval, offshore, ferry, tug, yacht and fishing vessels.