M32 MAST Assembly Manual Download Page 2

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M32 NEW MAST MANUAL

MANUAL SUMMARY

WE WANT TO STRESS THE IMPORTANCE OF HAVING THE RIG ACCORDING TO THE RECOMMEN-
DED SETTINGS WITH THE SPREADER ANGLE, PREBEND, DIAMOND TENSION AND MAST RAKE 
BEING THE KEY PARAMETERS.

 

The base setting for the mast is 190 
mm spreader angle, 30 of diamond 
tension and a 93 mm of prebend. 

 

Spreader angle should be between 
180 and 220 mm.  The prebend should 
be between 86 and 124 mm. The 
diamond tension should be between 
23,5 and 43.   

 

When measuring the prebend the 
mast supports shall be placed at the 
first reefing point and just below the 
mast winch. The line for measuring the 
prebend should be a 2 mm dyneema 
line lashed to the main halyard fitting 
at the top, and through the friction 
ring for the cunningham at the bot-
tom. Make sure the 2 mm dyneema is 
alined with the mast track entry and 
exit (described in the manual). 

 

The diamond is tensioned and me-

asured using the Loos & Co. gauge 
RT-10 M  with the base of the gauge 
just above the mast winch. Make 
sure you have the updated stainless 
wheels from Aston Harald Composite 
and be aware of that the new EC-Six 
diamonds needs less tension than the 
old ones. 

 

Mast rake should be 480mm. Instruc-
tions on how to measure the rake can 
be find in the M32 Assembely Manual.  

 

The forestays and shrouds should be 
tight at all times. The load on the aft 
shoruds should be 300 kg 

±

 50 kg 

measured with a  Spinlock Rig Sense 
RGS/0508.

 

Inspect the soft schakel for the genna-
ker halyard lock before each time 
going sailing. 

Make sure you read the manual and the EC-6 manual 

before assembly.

IMPORTANT!

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