Dragonfly Trimaran Rudder System
Here is an overview ‘behind-the-scenes’ on the Dragonfly trimaran rudder and rudder fittings.
00m 16s – Introduction
00m 48s – Strength of the Fittings
01m 18s – Swing Mechanism
The rudder system has gone through alot of development through the years and has been refined for each model of the Dragonfly family as it is a very important and vital part of the Dragonfly experience.
A lot of effort has gone into the engineering to optimise the rudder. The boat speed is the most significant factor for the forces on the rudder, therefore our high performance boats experience higher loads than monohulls in general.
Strength of the Fittings
When discussing the Dragonfly 28 the team say, “If we have 20 knots of boat speed and we turn the rudder 10 degrees, approximately 1.6 tonnes of pressure would be placed on the rudder blade. If you reduce the speed to only 7 knots, with the rudder at approximately 10 degrees we only have about 0.2 tonne of pressure. This sets high demands on the rudder blade and rudder fittings.”
The rudder fitting is further complicated by the swing mechanism which allows the blade to swing if it hits the ground. These factors provide the foundation for comfortable and safe sailing in any conditions.
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Here is an in-depth guide to sailing on a Dragonfly trimaran on a reach, including how to use the boomvang system and how to set-up the barberhaul headsail system.
Here is an in-depth guide to sailing downwind on a Dragonfly trimaran including how to set-up the gennaker, sail with the gennaker, trim the mainsail sailing downwind, and how to use the barber haul system.
Here is an in-depth guide to sailing upwind on a Dragonfly trimaran including how to trim the mainsail, headsail and how to tack.