A large range of sections are available from 40mm to 70mm OD in either ‘Hi Modulus’ or ‘Standard’ grade carbon. The majority of masts are supplied in KIT form to nominated assemblers.
In producing a KIT the section is chosen to provide the required stiffness. The ‘geometric’ design to determine top mast taper length, height of spreader arms, the rigging and fittings layout completes the design process. While in many classes these are restricted their optimisation is significant in the performance of the mast.
When an existing section isn’t suitable a new one is designed working closely with the customer to achieve the characteristics required.
HI MODULUS
These sections are normally constructed from HR40 carbon with a modulus of 377GPa. They are primarily used in the Hi performance classes. The principle effect is in reducing the outside diameter. For example a 45mm section will have the same stiffness as one of 60mm OD constructed from standard modulus carbon.
STANDARD MODULUS
The most commonly used carbon for dinghy classes with a modulus of 230GPa. Ideal for one design classes.
NOMINATED BUILDERS AND CLASSES
ESSEX RIGGING
CONTENDER
Two variations of the PG413 Hi modulus section are currently in use with both achieving success at the front of the fleet.
Diameter:
Weight:
Stiffness:
PG414
46.0mm
0.498 Kg/m
12.07 KNm^2
PG413H
46.5mm
0.556 Kg/m
14.05 KNm^2
PHANTOM
PG413 Hi Modulus section. First overall at the 2016 British Nationals with 5 first and one second placings
Diameter:
Weight:
Stiffness
46.0mm
0.498mm Kg/m
12.07 KNm^2
WHITE FORMULA
MERLIN ROCKET
PG413 Hi Modulus section
This has been the dominant mast at the British National Championships since 2012.
Diameter:
Weight:
Stiffness:
46mm
0.498 Kg/m
12.07 KNm^2
INTERNATIONAL 14
The current masts are very stiff and are suitable for either single or double spreader set up.
Section: PG60HHi Modulus
Diameter:
Weight:
Stiffness
60.9mm
0.72Kg/m
33.24KNm^2
NATIONAL 18: Mast and Boom
Mast: C7020H Standard modulus Section.
The N18 upgraded their new version to include a big top main in 2016.
Diameter:
Weight:
Stiffness:
71.5mm
0.805 Kg/m
32.34 KNm^2
BLAZE
The Paragon C5020 standard modulus section was chosen when the classchanged to carbon rigs in 2013.
Diameter:
Weight:
Stiffness:
50mm
0.46Kg/m
8.1KNm^2
VORTEX
In 2015 White Formula carried out an upgrade to the Vortex including Paragons C5020 standard modulus mast.
Diameter:
Weight:
Stiffness
50mm
0.46Kg/m
8.1KN^2
ICON
A new class in 2012, Paragons C5020 standard modulus section is used.
Diameter:
Weight:
Stiffness:
50mm
0.46Kg/m
81KNm^2
DEMON YACHTS LTD
P: +44 (0)1728 452019
E: info@demonyachts.co.uk
KITE
The KITE is a gaff sloop rigged trailer sailor described by Classic Boat as “not only one of the prettier traditional trailer sailors but one of the quicker ones too”
Paragon supplies the standard modulus sections for the mast, gaff and boom.
DEMON YACHTS has a growing reputation for building up one off custom rigs with Paragon sections.
