News & Productnews
26.11.2008 - New Mega Furler for Super Yachts.
Increasingly large loads experienced by the rigs of modern 60m performance sloops have made it necessary to expand the product range of RF90 roller reefing systems upwards. Stay loads of up to 34t and bulkhead loads of up to 80t have an impact on the 80m long roller reef system. When developing the RF90-7.5, therefore, as well as a holding torque of 40kNm (which corresponds to the drive torque of approximately 60 Porsche Cayenne Turbo), the aim was to incorporate a setting range of 600mm on the real time adjuster. Naturally, the new design also had to include all the features of the previous RF90 series, such as the emergency manual drive, the proven carbon profiles and the option of using rod, PBO and EC6 forestays. An innovation of the RF90-7.5 is the integrated luff cunningham: most modern rigs are fitted with halyard lock systems to reduce the compression of the mast profile. However, the RF90-7.5 is fitted with a new kind of luff cunningham system to give real time control of luff tension. This system works with a hydraulic cylinder installed below deck, which is attached to a sliding tack swivel by a cunningham line – the sail is lashed directly to the sliding tack swivel.
A new function in the real time adjuster ensures that the position of the furler on the deck remains unchanged when the stay is adjusted, and it is even possible to install the furler lower down without any problem. When designing a new yacht, its full weight and, consequently, the weight of its components, is a key factor. Finite element optimisation of the transmission, the very compact design and the use of state-of-the-art performance materials have made it possible to keep down the weight of the furler including the real time adjuster: with a 100% increase in performance, the new RF90-7.5 is only some 20% heavier than its predecessor, the RF90-7. Another feature is the integrated air connector for genoa air batten systems. The battens are connected directly to a port on top of the furler, the pressure air line needs not to be detached before the sail is furled.
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Increasingly large loads experienced by the rigs of modern 60m performance sloops have made it necessary to expand the product range of RF90 roller reefing systems upwards. Stay loads of up to 34t and bulkhead loads of up to 80t have an impact on the 80m long roller reef system. When developing the RF90-7.5, therefore, as well as a holding torque of 40kNm (which corresponds to the drive torque of approximately 60 Porsche Cayenne Turbo), the aim was to incorporate a setting range of 600mm on the real time adjuster. Naturally, the new design also had to include all the features of the previous RF90 series, such as the emergency manual drive, the proven carbon profiles and the option of using rod, PBO and EC6 forestays. An innovation of the RF90-7.5 is the integrated luff cunningham: most modern rigs are fitted with halyard lock systems to reduce the compression of the mast profile. However, the RF90-7.5 is fitted with a new kind of luff cunningham system to give real time control of luff tension. This system works with a hydraulic cylinder installed below deck, which is attached to a sliding tack swivel by a cunningham line – the sail is lashed directly to the sliding tack swivel.
A new function in the real time adjuster ensures that the position of the furler on the deck remains unchanged when the stay is adjusted, and it is even possible to install the furler lower down without any problem. When designing a new yacht, its full weight and, consequently, the weight of its components, is a key factor. Finite element optimisation of the transmission, the very compact design and the use of state-of-the-art performance materials have made it possible to keep down the weight of the furler including the real time adjuster: with a 100% increase in performance, the new RF90-7.5 is only some 20% heavier than its predecessor, the RF90-7. Another feature is the integrated air connector for genoa air batten systems. The battens are connected directly to a port on top of the furler, the pressure air line needs not to be detached before the sail is furled.
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