ML 400-AS - 2 Pages

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ML 400-AS

Catalog excerpts

TECHNICAL SPECIFICATION DOCUMENT  ML400‐AS  ROTOR STABILIZER HULL UNIT  DESCRIPTION:  The ML400 Series hull unit is designed to provide maximum energy transfer in terms of lift force based on the Magnus Effect. The unit is a compact rugged design built to withstand the most demanding military and commercial applications. For maximum roll reduction, the ML400 is mounted in the turn of the bilge with the rotor oriented perpendicular to the vessel hull during underway operations. Rotor spin direction and speed are altered during operation, as needed, to obtain optimal performance. To minimize appendage drag, the rotor stows neatly, parallel to the vessel hull, when the stabilizers are not in use. The rotor orientation and spin functions are precisely managed by Quantum’s hydraulic and electrical control systems. Designed using the latest technology and high-quality materials the ML400 Series hull unit offers the best performance of any system where significant roll reduction is required at loitering speeds. FEATURES:  SIMPLE INSTALLATION: The stabilizer unit is delivered fully assembled with minimal disassembly required for installation. Since no customized hull pocket is required for the rotor’s stowed position, complicated hull shape fabrication is avoided. SMOOTH OPERATION: The unit provides smooth power transfer from the rotor to the ship’s hull via precision roller bearings used in both the spin drive shaft and the main shaft. PRECISION CONTROL: By varying the RPM and direction of rotation of the tube, the lift force can be controlled with razor sharp precision, resulting in instantaneous response. EFFICIENCY: When properly sized and operating within acceptable vessel speeds, rotary stabilizers provide exceptional hydrodynamic efficiency compared with other stabilizer systems available. SAFETY: The rotor’s hydraulic system is equipped with automatic retract mechanism to allow the rotor to swiftly stow in case of impact during operation. While not in operation, the rotor is elegantly stowed along the hull, where it offers minimal possibility of impact and minimal effect during maneuvering conditions. In case of severe impact, half of the rotor tube will break away, in a design feature intended to sacrifice the rotor unit in order to preserve hull integrity. Typical Vessel Length* 45-70m (147 –230ft) Operating Speed Range Rotor Dimensions Length (inside vessel after installation)** 2-16 knots 460mm x 3220mm Width** Height (overall)** Weight (dry) 2443mm (96”) 1350mm (53”) 1273mm (50”) 5500kg (12,125lbs) *Provided for reference only. Consult a Quantum representative for system sizing. ** Dimensions are of the equipment, and do not include service allowances. All information contained within this document remains the absolute property of the Quantum Group and is subject to change at any time. Any use of the information for other than the intended purpose is expressly forbidden. Consult a Quantum representative for more information. INNOVATION  INNOVATION  Equipment is covered by Quantum’s 1 year comprehensive warranty. Service and technical support are available worldwide. WWW.QUANTUMHYDRAULIC.COM  110608

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TECHNICAL SPECIFICATION DOCUMENT LONGITUDINAL LOCATION A rotor has distinct advantages over a fin because it can be placed in a much larger longitudinal region on the hull. A fin is restricted to the mid 1/3 of hull length due to pitching forces and steering effects, however this is where the fullest shape of the hull exists and therefore restricting the size of the fin. A rotor however does not influence steering if placed too far aft and will not experience excessive forces due to pitching if placed too far OPERATION SUMMARY The rotor has an outer fiberglass tube (shown in yellow) which...

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