Please select your home edition
Selden 2020 - LEADERBOARD

New Oyster 495 benefits from Seldén Mast's new push button sailing technology

by Seldén Mast 22 Nov 2021 10:37 UTC

When the first Oyster 495 hits the water in early 2022, it'll be sporting a Seldén carbon furling mast with new push button sailing technology developed specifically for this new model, the likes of which has not been seen to date on a sub 50ft yacht.

Building on its Synchronised Main Furling (SMF) system which synchronises an electric motor in the mast with its new E40i electric winch for the outhaul when unfurling the main, Seldén has automated the system even further to offer a true push button sailing experience.

To make sail handling even easier for a small crew, Seldén removed the E40i electric winch from the SMF system and fitted small aluminium hydraulic cylinders in the boom to control the outhaul when both furling and unfurling the sail.

In boom hydraulic cylinders for outhaul and mainsheet control is not a new concept but, due to these previously being low pressure large steel cylinders, their size has made them prohibitive for use on yachts below 50ft.

Seldén's development of a smaller aluminium cylinder at a higher pressure has dramatically reduced the required power pack size and the weight by 50%. This innovation means that a hydraulic outhaul can now sit alongside a hydraulic mainsheet, with both enclosed within the boom of the Oyster 495, allowing the owner push button control of the mainsheet and the outhaul.

The system is powered by Seldén's proprietary control system, SEL-Bus, which is fully integrated across the yacht for all electric and hydraulic Seldén product ranges. The SEL-Bus system converts 12V or 24V to 42V, allowing much smaller and thinner cables around the vessel. The system also communicates between the different units onboard, offering a diagnostic function to enabling the system to reduce power consumption by putting the system into 'sleep' mode when not in use.

In addition to this creative solution to sail handling, which is usually the preserve of much large yachts, Seldén is also supplying the Oyster 495 with a Furlex Electric head sail furler, hydraulic vang and hydraulic backstay ram - all of which will be connected to the SEL-Bus system and controlled at the touch of a button from the helm station.

"The Oyster 495's push button sail controls will allow the yacht's crew to sail completely from the cockpit, reefing, furling and trimming the mainsail and the head sail at the touch of a button," says Steve Norbury, managing director at Seldén Mast. "A safe, secure and extremely convenient way to sail, especially when short-handed or with an inexperienced crew.

"We've supplied Oyster with over 50 masts in the last decade or so on models ranging from the 475 to the 745, so developing this technology specifically for their 495 not only strengthens our long-term partnership but demonstrates that Seldén is at the forefront of design for sail and rig control solutions."

Andrew Martin, Oyster 495 programme manager comments: "Oyster is delighted with the bespoke development of the SEL-Bus furling system which, with a single button powered solution to mainsail management, takes sailing automation to another level on board the Oyster 495. This is just another innovation that will make sailing this new breed of bluewater sailing yacht a simple pleasure for a couple or young family.

"In mast furling has long been Oyster's tried and tested reliable bluewater sail plan. The SEL-Bus furling compact hydraulic power system is simpler to install on our smaller boats and along with other unique features sets a very high standard on this new bluewater benchmark."

For more information on Selde´n Mast and its products visit

Related Articles

Video Interview with Seldén's Mats-Uno Fredrikson
Taking a closer look at Seldén's electronically driven sail handling products at METSTRADE Swedish mast and deck hardware manufacturer, Seldén Mast has expanded its range of electronically driven sail handling products with the launch of the CXe45 two-speed electric Code 0 furler. We spoke to Seldén's Mats-Uno Fredrikson to find out more. Posted on 28 Nov
Seldén CXe45 – an electric Code 0 furling system
Aimed for 45-55' boats with a maximum working load of 4.5 tons Swedish mast and deck hardware manufacturer, Seldén Mast is expanding its range of electronically driven sail handling products with the launch of the CXe45. Posted on 28 Oct
Make sail handling easier
With expert advice from Seldén at the Southampton International Boat Show Gosport based, Seldén Mast will be offering expert advice on how to make sail handling easier at this year's Southampton International Boat Show (SIBS), 16-25 September 2022. Posted on 7 Sep
Seldén dominates at Solo Class Nationals
In first place was Tom Gillard, followed by Steve Cockerill in second Seldén Mast dominated at the Solo Class National Championships at South Caernarvonshire Yacht Club in Abersoch, Wales, with each of the top three overall winners carrying a Seldén Solo specific D+ -22 spec dinghy mast and Seldén Olympus boom. Posted on 25 Jul
Golden Globe Race participant chooses Seldén Mast
Ian Herbert-Jones will set sail on his epic voyage with a new Seldén rig Ian Herbert-Jones is sailing solo non-stop around the globe without outside assistance onboard his Tradewind 35 Puffin as part of the Golden Globe Race 2022, a race which is being heralded as the longest and loneliest sporting event in the world. Posted on 18 Jul
Seldén in cooperation with Swedish Sailing Team
A hardware sponsor within the Olympic classes Seldén and the Swedish Sailing Federation have signed an agreement for Seldén to support SWE Sailing Team as a sponsor within the Olympic classes. Posted on 27 Feb
Win a complete dinghy hull deck hardware fit out
At the RYA Dinghy and Watersports Show 2022 A complete dinghy hull deck hardware fit out is up for grabs from Seldén Mast at the RYA Dinghy & Watersports Show, 26-27 February 2022. Posted on 9 Feb
Seldén's new dinghy deck hardware makes UK debut
At the RYA Dinghy and Watersports Show 2022 The show, at its new Farnborough International venue, will be the first time that Seldén's new manual ratchet and soft attachment blocks have been showcased at a physical show since their introduction last year. Posted on 19 Jan
Quick catch up with Draycote Dash winner
Ben McGrane talks about winter events and mast sections Having sailed various classes of dinghy since he was a child and achieving National and European championship wins, Ben McGrane moved into the 505 at the end of 2018. Posted on 16 Dec 2021
Seldén Mast expands sales team in the UK
Welcoming Richard Thoroughgood back to the team Following a seven-year hiatus, Seldén Mast has welcomed back Richard Thoroughgood to its sales team for the third time, expanding its sales team in the UK. Posted on 27 Nov 2021
Selden 2020 - FOOTER