Originally Posted by blt2ski
Friction in this case to me, is how much the line rubs on the sheaves, or the sheaves will not turn. This friction will cause the pull to be harder than it should. If you were to go to a local marin hardware store, Spin to sheaves, one with ball bearings, the other a solid sheave. The ball bearing sheave will turn 4-5 turns before stopping, the solid sheave maybe 2-3. This is caused be friction. IE things rubbing against ea other so you can not pull, push move etc something.
So you mean like if something were sliding along some ice, for example, and it eventually came to a stop that would be friction causing it? And like say a cylinder in an engine heating up and needing oil. Is that because of friction? I think I get it. Feel free to elaborate further, specially refering to a single vs double line reefing sys.