Thinking of retubing some more Willard ribs?
Very interesting read btw, thanks for that. So when they state "urethane coated fabrics" do they mean the pvc material that boats at West Marine and Zodiac sell as tenders? It seems, according to this document the urethane coated fabrics are much better suited for ribs. Or am I getting urethane as in polyurethane mixed up with pvc ?
I wonder how the military determines when a tubeset is worn out. The document says the British Military replace every 8 years. My Avon sr4 is roughly 14 years old. I doubt they replaced the tubes during its life. How would you know it was going bad? They don't leak air and all the seams are still good. Seems good to me.