Mackay i420
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Mackay i420: Accelerate skill development in a boat that delivers an edge. A Mackay 420 has been behind nearly every world champion success since we commenced building 420s in 2012. The 420’s design and class rules gave us the opportunity to build a boat similar to how the Mackay 470 is built in terms of the mould structure and look of the boat.
The Mackay 420 hull shape was developed by naval architect Kevin Trotter. Kevin has designed very fast dinghies here in New Zealand over the years. Using the latest design and analysis software, along with the luxury of time, we were able to evaluate the expected performance along with the look of the boat.
Looking at where crews tended to sit in the boat in different conditions affected where we pushed the displacement curve of the boat. Additionally, Kevin's skiff designs gave valuable insight into the way the rocker curve and buttocks lines should run through the middle and aft sections.
The hull is made from a polyester e-glass fibre, using foam core ribs and core mat panels.
The Mackay 420 deck-to-hull joint system is the same as our 470s, which allows for the same exceptionally strong but light gunwale arrangement. This extends around the bow and across the transom.
We have also borrowed some other features from the 470. As an example, the way the mast partner is fitted to the deck after the boat is built allows the bulkhead in front of the mast to be more vertical and closer to the mast. This is better for rig tension and weight distribution. It also improves the look of the boat, giving it a longer foredeck.
*Prices subject to change slightly due to exchange rates.
* Mackay 420 Complete Hull, rudderstock Robline ropes and measurement certificate : $11800