SailNet Community - View Single Post - rigging question
View Single Post
  #3  
Old 10-15-2010
RichH's Avatar
RichH RichH is offline
Senior Member
 
Join Date: Jul 2000
Location: Pennsylvania
Posts: 2,975
Thanks: 10
Thanked 90 Times in 82 Posts
Rep Power: 15
RichH will become famous soon enough
If the boat has an aluminum mast .... leave the rigging ALONE.

The aluminum has a higher 'coefficient of linear thermal expansion' than the stainless steel wire of the rigging .... and in COLDER temperatures will shrink MORE (about 1.4 times more) than the stainless wire, thus automatically 'unloading' the tension is the 'whole system'.

ALUMINUM: 12.3 X (10^-6 in/in oF)
300 SERIES STAINLESS 9.0 X (10^-6 in/in oF)

Aluminum expands or contracts about 1.4 times more than 300 series Stainless due to 'thermal' changes.
Reply With Quote Share with Facebook