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Forum: Construction, Maintenance & Refit 25-11-2018, 20:21
Replies: 47
Views: 7,183
Posted By Rowglide
Re: Steering sheaves / pulleys

I have read the article and gone over the Edson chart... what am I missing?

It appears to me that the loads referred to in the article are at the rudder post, a twisting action. When you move out...
Forum: Construction, Maintenance & Refit 25-11-2018, 18:52
Replies: 47
Views: 7,183
Posted By Rowglide
Re: Steering sheaves / pulleys

OK, I neglected to account for the quadrant. So yes there is a further reduction in load to the wheel. If they are correct with 46lbs at the rim, lets say 50lbs at the rim, 18" wheel radius with a 1"...
Forum: Construction, Maintenance & Refit 25-11-2018, 05:45
Replies: 47
Views: 7,183
Posted By Rowglide
Talking Re: Steering sheaves / pulleys

Thanks for the engineering,
Clive, I have 2 concerns with the iron pulleys, am I being snowed by a love of bronze or is iron a perfectly suitable material?

1- any corrosion will be very abrasive,...
Forum: Construction, Maintenance & Refit 24-11-2018, 05:08
Replies: 47
Views: 7,183
Posted By Rowglide
Steering sheaves / pulleys

So I am piecing together my "System" to install a pedestal / wire rope /quadrant steering system on my boat.

I am now looking at sheave /pulleys. I intend to use 1/4" wire rope so 6" pulleys, not...
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