Re: Backstay Tension A54


Martin Birkhoff
 

Hello Dean,
 
From Franck Chivée, La Rochelle, Greement, I got the numbers you can see in the sheet. I got thenumbers when he checked our rigging. Franck Chivée is a rigger and very familiar with Amel and Amel rigs. As the backstays of the Amel 54 are 7 mm thick, the tension should be between 600 and 800 kg.
Franck's figures are based on the values that Selden recommends. 

The best will be to ask him.
You can contact Franck by e-mail: larochellegreement@...

Diameter

breaking load in kg

nominal tension 15/100 in kg

nominal tension
20/100 in kg

7 mm

4.050

607

810

8 mm

5.220

783

1.044

10 mm

7.900

1.185

1.580

12 mm

11.055

1.658

2.211

 
The numbers are for 1/19 wires.

Regards
Martin

SY Mago del Sur - 54#40

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