Defy Maintenance – Command Performance
Surface drives are the most efficient form of propulsion for high speed craft. That’s a known! Q-SPD, by design, offers a surface piercing alternative that eliminates traditional compromises commonly experienced with other surface drives yet brings the same high performance characteristics one expects from surface drive technology, along with many unique and real advantages in a user friendly bundle…..The Q-SPD Advantage.
- Light weight composite construction
- Higher speed –up to 30% more than fixed propeller
- Use less fuel – proportional to speed increase
- Fast acceleration and easy transition
- Exceptional maneuverability
- Excellent tracking at all speeds
- Super quiet and smooth
- Lowest and easiest maintenance
- Compact design and easy installation
- Minimal servicing – longer service intervals
- Reliable and long lasting
- User friendly easy operation – no trim operation required
- Positive and predictable steering
- Shallow Draft
Q-SPD‘s unique main body design is a monocoque composite structure, molded using resin infusion of Eglass and carbon fibre fabrics, in an epoxy matrix, that is temperature cured to create a very accurate part. This mean a very light weight single structural component that is non-corrosive, super strong, robust and reliable.
Using light weight composite technologies offers the ability to Style and Form enhanced features that overcome many of the traditional surface drive compromises, as well as eliminating many complexities like trim control, which are simple not needed, hence eliminating vulnerability and reducing maintenance.
Lightweight and Compact
Q-SPD’s composite construction contributes to a very lightweight solution. Up to 50% lighter than other equivalent systems. Q-SPD is much shorter in installed length then other surface drive so fits more neatly away under the platform without compromising waterline length. Q-SPD is actually shorter and offers shallower draft than an equivalent stern drive.
All Q-SPD solutions require virtually no maintenance! All hydraulic cylinders, lines and systems and other critical mechanical parts are inside the vessel. Water lubricated shaft bearings and self-lubricating rudder bearings offer long-life maintenance free operation.
The inboard thrust assembly is water cooled and oil lubricated for maximum life. Design is modular and easy to disassemble and maintain if ever needed, with the main service components inside, where they stay dry, clean and free from fouling and corrosion, servicing when needed is easier. Splines rather than tapers make disassembly and reassembly easy.
Many clients opt for Q-SPD not just because of the efficiency and speed gains, but because of the long term reliability and lack of maintenance. Even in demanding commercial applications, Q-SPD is proven to endure thousand of hours without significant servicing requirements.
Q-SPD is supplied as a fully assembled unit ready to install. No disassembly and reassembly needed. Even the propeller is installed. All systems supplied with full installation instructions, templates and installation hardware.
Q-SPD offers the same efficiency gains that we expect Surface Drives to offer at high speeds. This is the nature of the technology and Q-SPD is no exception. However, Q-SPD is designed to be more efficient though the whole operating range, not just at high speed. Unlike many other brands Q-SPD offers much improved lower speed performance even on very fast boats.
One notable ability of Q-SPD is to achieve very easy and quick acceleration. Q-SPD uses exhaust and passive air ventilation to provide the correct amount of propeller ventilation at all times. No need for adding vent pipes, no need for vent grills in swim platforms to get enough air to the props and most of all, no need for propeller trim operation to get out of the whole. Just push the lever and go, easier and faster on to the plane.
Steering and Maneuverability
Q-SPD drive and propeller design to offers better low speed operation without the need for propeller trim functions or other assistance that other drives need. Q-SPD’s contoured under body design promotes better thrust at low speeds both forward and reverse, so enhancing maneuverability and reverse performance. Clients have told us that maneuverability is better than their previous experiences with conventional shafts and stern drives. Low speed operation is predictable and positive and again no need for the addition of trimming propellers.
Q-SPD’s twin rudder design offers very responsive steering at all speeds. In fact so good that in many applications rudder angles needs to be limited at high speed for crew safety. The rudders are always in hard water flow rather than in propeller wash so tracking is extremely positive at all speeds and there is none of the rudder vibration feedback common with trailing rudders.
One notable ability of Q-SPD is to achieve very easy and quick acceleration. Q-SPD uses exhaust and passive air ventilation to provide the correct amount of propeller ventilation at all times. No need for adding vent pipes, no need for vent grills in swim platforms to get enough air to the props and no need for propeller trim operation to get out of the whole. Just push the lever and go, easier and faster on to the plane.
All of these unique design features of Q-SPD is taking the experience of surface drive technology to a new level by offering the most user friendly surface drive package there is. User Friendly means that there is no additional worries for operator while using the vessel. No need for drive trim control to make it work like others need. No chance to run in wrong trim mode and overloading engine and other equipment. No worries about hydraulic lines and linkages in the vulnerable sea water environment. Put simply, operation is just the same as operating a conventional propeller vessel, except with more performance and agility.
Smooth and Quiet
Q-SPD drives run extremely smooth and quiet. Advanced propeller design along with drive system design means no vibration and the drive housing itself helps muffle exhaust noise such that all that can be heard is the flow or water from the propellers.
Lower Speed and Single Screw Applications – OK!
Further, Q-SPD is well proven to have the ability to operate very effectively on lower speed boats and also heavy boats where other surface drive technology just can not go. This makes Q-SPD perfect for many work boat applications where load carrying is important, along with shallow draft and low maintenance.
The Q-SPD body and twin flanking rudders offer best protection to crew, passengers and vessel from the aggressive propellers. So safer for swimmers. Unlike other drives there is no need for ventilation grills in platforms or excess open space over the drive, so a closed swim platform even can be used to provide extra protection and more quiet operation too.
Extensive Model Range
Q-SPD is offered in a range of drive models for vessels up to 100 tonne and up to 3600hp. With a full range of 14 models there is a solution of any application.
Q-SPD offers complete propulsion solutions. Learn more here.