Author Topic: Swing spreaders tips on tuning  (Read 182 times)

DuncanAdams

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Swing spreaders tips on tuning
« on: August 03, 2019, 09:10:48 PM »
I've just picked up paradigm 3533.
Trying to get her tunned up to a basic form of setting but whenever I pull rig tension on the mast just inverts. Seem as if the swings spreaders are not going any support.

Any tips on getting pre bend with these?
Are swinging spreader still in?

John M

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Re: Swing spreaders tips on tuning
« Reply #1 on: August 04, 2019, 12:12:42 AM »
Hi Duncan
I used to have a paradigm
The details below are from memory but wonít be far out.
Set up jib halyard with rake of approx 6600 mm from top of mast to middle of transom
Spreaders should be c.380mm length and with aft deflection of c.150mm measured from back of mast to line between the ends of the spreaders.
Keep mast ram eased.
Pull on shrouds equally.mmI canít remember any rig tension numbers.
This should look ok.
Swinging spreaders are fine, but I do tie a line around mine which restricts both being able to be let off at the same time,



DuncanAdams

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Re: Swing spreaders tips on tuning
« Reply #2 on: August 04, 2019, 08:17:43 AM »
Thank you John M

i just could not stop them from swinging forwards when I applied the rig tension.
ill give your suggestions ago today,

Many thanks
Duncan

Steve S

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Re: Swing spreaders tips on tuning
« Reply #3 on: August 15, 2019, 11:07:06 PM »
Duncan,
If the foot of your mast is not coming down square to the mast step it will induce a bend one way or the other. If the load is coming through the front it will induce an inversion. Worth checking.

Regards,

Steve
N3531

DuncanAdams

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Re: Swing spreaders tips on tuning
« Reply #4 on: August 18, 2019, 05:54:25 PM »
Steve
Thank you I'll check this👍👍

 

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