QSD5 SERIES

TECHNICAL OVERVIEW

NEW FOR 2025! The QSD 5 series, offers even more opportunity for larger medium to high speed vessels to benefit from the versatile, user-friendly and high-performance alternative for larger vessels up to 30 meters and beyond suited to engine power to more than 3,600 hp per unit. The QSD5 is a fully integrated solution that offers extremely low maintenance requirements. 

As a comprehensive system, the installation process is easier and faster than any traditional conventional propulsion system. QSD5 incorporates the driveline, thrust bearing, propeller, rudders, steering links and exhaust in a bolt on assembly. 

The QSD5 series is transom mounted giving more flexibility to the designer. It is now possible to move engines well aft and eliminate the need for V-drive gearboxes, freeing up that valuable midships space for all important accommodation. Engineering install runs are shorter, easier and so less expensive. 

The carbon fibre/Eglass composite body is a monocoque structure meticulously built using latest resin infusion techniques. All mechanical components are made from marine grade materials such as NIBRAL and stainless steel, making the QSD5 light weight, robust and corrosion resistant. 

All vital mechanics and components are situated inboard away from the harmful elements. Oil lubricated thrust bearing is water cooled and exhaust is also accommodated for on all models with optional flange fittings as shown. All QSD5 drives are supplied with intermediate shaft and Q-SPD specified custom designed propeller and power steering to match application thus completing the full propulsion solution. 

Steering is achieved using any conventional marine steering system of choice via the convenient inboard mounted tiller. Steering can either be supplied as part of an integrated solution from Q-Marine or the builder is free to choose their favoured steering solution to integrate with the rest of the ships systems. 

The QSD5 series is offered in 2 base models, the QSD501 and QSD550. 

Installation

Materials & Features 

Specifications & Ratings 

(1) Weights are nominal for drive only excluding propeller.

(2) These specifications are a guideline only. Actual application limits will depend on shaft speed, power to weight ratio and vessels speed and mission.

*  Power limits dependent on application parameters.

** Specifications subject to change.

  • Steering systems – Power Hydraulic, Power Assist, ECS 

  • Exhaust Flange Adapters and full Bespoke Exhaust system design and build 

  • Custom Intermediate drive shafts for flexible installation 

Optional Equipment 

Download QSD5 Series Technical Specifications

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