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Autolock SY Ngoni

Rondal 71mm performance rig package, equipped with the Square Top Main AutoLock Automatic Headboard Car by Equiplite ®

The all-carbon Rondal mast for the 58m Dubois-designed NGONI are designed to carry a powerful squeare-head mainsail by North Sails New Zealand.

As an answer to the question to innovate, AutoLock built a Square Top Main AutoLock with a break load of 60 tons. This innovative lock is special designed for square top sails. The main headboard car is equipped with two locks in one that will lock the main sail car and the square top.

With the extremely high workloads existing systems require large holes in the mast for the locks. Besides the large holes, the existing systems are a lot heavier than the outlook headboard car that only weights 60kg and still have four locking positions. The main reason for this weight improvement is the eliminating of the Headboard platte and three locks in the mast, which is also a benefit to the budget.

In addition to the weight advantage, the Square Top Main AutoLock system doesn’t require any changes in the automatic hoisting system and furling booms. Just by hoisting the sail with the main halyard, the lock will automatically lock the roach boom at the up-stop position

Working together with top quality suppliers of rig components, Rondal ensures the perfect integration of the spars and standing rigging. Equiplite® is delighted to announce we are one of these suppliers.

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To create the world’s biggest and carry the power fulesd  squeare-head main in the world, 5.8 mtr. And instal the Roach headboard plate within 2.5 minutes by one man. Finally, a finest and the most significant Superyacht rig package in terms of size, performance and styling requirements.


The AutoLock is recognized universally as the most aerodynamically and cleanest available fully automatic lock system.

Our focus:

1.Two plug and play the Roach within 2-3 minutes, and ready for sail.  

2.Doesn’t require any changes in the automatic hoisting system and furling booms

3.Deliver more load holding capabilities with less Windage, quickest reliable lock action and lowest weight to give you the advantage you need in terms of performance and safety. Reduce maintenance cost and lower the initial investment by a factor 3 

Direct link:

The Square Top Main AutoLock Automatic Headboard Car.

Supplied by Equiplite:

Project: Rondal Rig 71 mtr.


Rig Components:

product: type: workload:

Square Top Main AutoLock Automatic Headboard Car 


60.000 kg MBL

Technical Data



Rig Architect: 

Rondal Design Team


Rondal BV

Standing rigging:


Intellilock - AutoLock

Equiplite ®  (Sailing Perfection Group of Companies)


Rig and Standing rigging:

Rondal BV



Naval Architects:

Dubois Naval Architects


Royal Huisman

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