Curren$y pilot talk 3 320 install#

These naturally fall into two different categories – all-in-one units that include a basic course computer, fluxgate compass, control pad and, in some cases, a one-line display. Raymarine’s ST2000 is a basic all-in-one model for boats up to 4,500kg 2. Similarly Raymarine’s mechanical linear drives (£1,800-2,065) are offered in three sizes for boats with displacement of up to 11,000kg, 15,000kg and 20,000kg laden displacement.Ībove this a hydraulic drive will be needed. The company’s Class B units include a compact model rated for 22 tons, while the standard size model will cope with 35.8 tons loaded displacement. Garmin offers a number of Linear Drives, including the Class A Mechanical Linear Drive (£1,600) for yachts up to 12,900kg loaded displacement. However, the latter can be more powerful, so are typically found on larger yachts.

Curren$y pilot talk 3 320 install#

Rotary drives can drive a gear wheel where the steering system incorporates a chain drive.Įlectric units are more efficient on power consumption, easier to install and cheaper than hydraulic options. Linear drives are used to connect directly to the quadrant and are the most common type, especially on relatively recent boats. The two key choices are between hydraulic and electric-mechanical units and between a linear or rotary drive. Whether driven directly by an electric motor, or via hydraulics, these are non-intelligent items that simply respond to the changing 12V (or 24V) outputs from the course computer. Yet in many ways the physical means of moving the rudder has changed little in the past decade or two. These are a key in getting good pilot performance and in maximising reliability. In most cases drive units are specified for a maximum laden displacement.įor many yachts this can easily be in excess of 20% above the boat builder’s quoted figure for light displacement.ī&G’s DD15 Drive Unit is a compact and energy efficient design for yachts from 30-40ft 1. In many cases an autopilot system can be updated significantly without replacing the drive unit, control keypads or display units, which can make upgrading more affordable. It’s always worth checking with suppliers, or directly with a manufacturer’s technical helplines, to be sure that the products you plan to buy will work together as expected.īefore going shopping, make an audit of the elements of your existing autopilot system – and what will benefit from replacement. These are generally fairly simple 12/24V motors that respond in the same way to the output from the course computer, without other complex electronics that need a data feed with specific protocols. However, there’s usually no need for drive units to be the same brand as the remainder of the system. While many items from different brands will talk to each other, it makes sense to limit the variety as far as possible to avoid any problems. B&G’s Triton controller Mixing autopilot brands?