The High Performance International 420 is one of the hot Junior Class
boats in North America. It is especially popular on the East Coast and
was a fore runner to the Club 420, probably the most popular junior boat
in all of North America. With North Sails worldwide contacts and design
input, we continue to help refine the International 420 sails for top
performance.
Our 420 designs are faster than ever! Don't hesitate to contact our 420 experts to learn more about making your 420 fly!
M-7 Mainsail
2011 World Champion!
2011 European Champion!
This mainsail design was developed after many hours of work, including 6 trial designs before we perfected it. The main
focus was having the sail with the correct entry angle, as of the
windward sheeted jib, the correct lower depth and twist as the bridle
traveler means the boom can’t be centered all the time, and with enough
depth in the top of the sail to give comfortable power to the sailors.
The M-7 features the jib leech window under the new rule.
M-7 mainsail features:
- 420 insignia
- Spreader window
- Sail numbers
- Battens
- Telltales
- Sail bag
- Class button
2011 World Champions Annabel Vose and Megan Brickwood,powered by North M7 Main, J-9 Jib and the S-01 Spinnaker.
M-9 Mainsail
The M-9 is the new design which has a deeper bottom-middle
shape. It is combined with a comfortably balanced shape at the top
section making trimming easier. In vang-on conditions, high boom-vang tension adds mast
bend down low. The M-9 has designed curvature in this region to
improve the performance in this condition.
Easy to handle, easy to trim and easy to accelerate.
M-9 mainsail features:
- 420 insignia
- Sail numbers
- Spreader window
- Battens
- Telltales
- Sail bag
- Class button
J-11 Jib
NEW 2012 Japanese Design!

The J-11 is based on the very successful J-9 but modified to improve durability in leech.
Some refinement in the mould shape and panel
layout coupled with added flutter patches work together to make an even
longer life sail.
As with the main sail design, there is particular
way of using with the jib, which is playing both leeward and windward
sheets, as the eyelet to lead the jib sheet on the deck was designed in a
bad position. This makes getting the perfect design complicated. We
worked hard on leech profile and depth down low, so with using the
windward jib sheet the leech profile is even. It has comfortable entry
angle making it easy to steer in both the choppy and flat water.
Again the focus was on the ease of trim for the sailor, so then the
sailor knows they are fast and can then concentrate on racing.
J-11 Jib features:
- Window
- Tack cleat
- Telltales
- Sail bag
- Class button
S-05 Spinnaker
Designed by the Olympic winner designers of North Sails Japan is now available in the US.
This is designed based on S-01 to make it fuller and stable which makes trimming easier. It works well especially in choppy water.
However it has a bit smaller project area than S-01.
One lens foot panel was added under new rule. the shape is exactly the same as former S-5.
S-01 Spinnaker
Designed by the Olympic winner designers of North Sails Japan is now available in the US.
The design built based on our most popular
470 design performs great at both running and reaching. Biggest project
area, easy to trim, good organized balanced depth through top to bottom
makes the trimming easier. As the depth itself is a little flatter, you
can play the spinnaker pole height to make it stable when required.
Having the spinnaker with maximum area but flat means the sail is fast
on both the reaching legs and also the run.
One lens foot panel was added under new rule. the shape is exactly the same as former S-1.
>> Contact the
420 Experts for additional information and questions about our products.