Thickness of mast on 1977 Pearson 10m
- Thread starter DougRF
- Start date
View from the back
Member
Pearson 10M was a great boat! I used to work for a Pearson dealership a billion years ago.
Oh Sheet
New member
The 36 was a very sharp boat also
ExOmo
Best Anarchist Ever
It's like Jeopardy where you are given the answer but we expect you to provide the question.
SloopJonB
Super Anarchist
Judging by the thread title I'd say he wants to know the wall thickness of the 10M mast.
Or is that two obvious?
Or is that two obvious?
12 metre
Super Anarchist
It may help to know the spar section used. But if you knew that - you would probably the wall thickness.
Boats of similar size and displacement are likely to have masts with similar sectional dimensions.
I'm not really familiar with the 10M, but given it's displacement, the mast outer dimensions are likely at least 7" x 5".
Depending on the level of accuracy you need, such a section would likely have a minimum wall thickness in the neighbourhood of 0.15"
You might want to peruse the Rig-Rite web-site: https://www.rigrite.com/
They have many different sections and dimensions and often have a short sample list of boats that section was used on.
They also have a section about Pearson Spars, which indicates Pearson tended to use Kenyon or Metalmast back in the 70's.
It indicates the Metalmast 7348 section was used on the not too dissimilar Pearson 323 of the same era. Unfortunately, while it provides the external dimensions (7.3" x 4.8") it does not appear to provide the wall thickness. The Metalmast sections also have variable wall thickness to increase longitudinal and lateral stiffness.
Boats of similar size and displacement are likely to have masts with similar sectional dimensions.
I'm not really familiar with the 10M, but given it's displacement, the mast outer dimensions are likely at least 7" x 5".
Depending on the level of accuracy you need, such a section would likely have a minimum wall thickness in the neighbourhood of 0.15"
You might want to peruse the Rig-Rite web-site: https://www.rigrite.com/
They have many different sections and dimensions and often have a short sample list of boats that section was used on.
They also have a section about Pearson Spars, which indicates Pearson tended to use Kenyon or Metalmast back in the 70's.
It indicates the Metalmast 7348 section was used on the not too dissimilar Pearson 323 of the same era. Unfortunately, while it provides the external dimensions (7.3" x 4.8") it does not appear to provide the wall thickness. The Metalmast sections also have variable wall thickness to increase longitudinal and lateral stiffness.