Please select your home edition
Edition
Upffront 2020 Foredeck Club SW LEADERBOARD

Karver's new 3:1 Friction Sheave

by Phil Anniss 21 Aug 2019 01:00 PDT
Karver KF5 3-1 Friction Sheave © Karver

Introduction to Karver's upgraded 3:1 Friction sheave for use with their KF / KSF furling drums.

It's not often that developments in fitting design deliver a significant increase in quality and a reduction in both weight and price - all at the same time. But Karver Systems appears to have achieved the impossible with the new 3:1 Friction Sheave.

Made from HR stainless steel, the Karver 3:1 Friction sheave provides a flexible solution for the connection of the furling drum to deck. With the option of using it in either a 2:1 or 3:1 configuration this simple, robust design provides excellent luff tension control with trouble-free operation and very little maintenance.

Much lighter than the previous version (33% weight saving for the KF5) and now with a quick release, captive pin mechanism, this is a nice development. It improves the usability of this popular performance addition to the standard furling drum.

For more technical details view the Karver friction sheave at upffront.com

Related Articles

nke - Finding Their True Course
Upffront.com look at these high quality, precision navigation instruments nke is a specialist marine electronics manufacturer which has built a reputation, over 35 years, for high quality, precision navigation instruments for sailing yachts. Profiling companies like this is part of Upffront.com's raison d'ĂȘtre. Posted on 28 May
Ewincher - An alternative to electric winches?
A power-assisted winch handle requires no installation Electrification of winches can be a great benefit; reducing the strength and manpower needed on your boat and allowing many to sail short-handed or continue sailing longer in life. Is the Ewincher a viable, cost-effective alternative? Posted on 11 May
Extend your reach with Ronstan
The Battlestick is the self-professed 'next generation of sailing weaponry' Ronstan is an Australian born company who has developed hardware for both small and big boats since 1953. In this article we will look at their extensive range of tiller extensions which have become a brand in their own right: the Ronstan Battlestick. Posted on 30 Apr
Bamar's got your back... stay!
Looking to upgrade from a block and tackle system to a backstay tensioner? Looking to upgrade from a block and tackle system to a backstay tensioner? This blog will look at the Bamar BTV and BTM mechanical backstay tensioners and compare them with alternatives on the market. Posted on 23 Apr
PROtect Tapes SPK: Wooling spinnakers
An environmentally friendly and innovative system for solving an old problem PROtect Tapes provide solutions for the owners, boat captains and race teams who recognise that protecting the boat and reducing maintenance plays an important role in enhancing performance. Posted on 15 Apr
Harken Reflex Furler
Always adapting to stay ahead of the game Blocks, winches, travellers and a whole range of other systems... Harken has been a market leader in the sailing industry for over 40 years and is a household name among sailors. Posted on 9 Apr
Join upffront.com on the Foredeck
Get a free 50 Euro voucher when you join this exclusive club With the launch of the all-new upffront.com website we are also pleased to present the Foredeck Club, exclusively for boat owners who are serious about their sailing. Posted on 1 Apr
Andersen Winch
Laser focus on a simple, reliable, high-quality design As part of the Ronstan brand, Andersen are 100% focused on providing simple, reliable high quality sailing winches. Anderson made the decision early on to focus on one standard range and do it well. Posted on 26 Mar
Adding a Bowsprit 'Turbo Charge'
What is the Facnor Bowsprit? Facnor is a specialist in designing and manufacturing furling systems, and therefore it should come as no surprise that they have a retrofit bowsprit solution. Posted on 18 Mar
What's so special about the Ronstan Orbit Range?
An in-depth look from upffront.com Well known around the world, Ronstan is a great choice for blocks and sheaves for a variety of sailors. They have developed a number of ranges from the basic Utility range to the advanced precision Orbit range. Posted on 12 Mar
Upffront 2020 Foredeck Club SW FOOTER