Originally Posted by Duane2312
"A freewheeling propeller will, in many instances create more drag than a locked one."
I know very little about boats... but I know my car tires create more drag with the brakes are applied.
I am trying to think of an instance that a stopped propeller creates less drag than one being spun. I wish that guy would have given an example of the "many instances".
I thought the laws of physics were constant.
I work with an old(er) Naval architect and he has more old rules and anecdotes such as spinning wheels and drag and he always cites several instances from past tests that he can't give exact details about he just knows that what he's saying is the last word!
I own a substantial marine library as I suspect many of you here do also and there are more authors making statements of fact with no corroborating facts on all subjects relating to boats.
My 12 year old was at the helm and I told him to shift the transmission into neutral when he shut down the engine.
His asked why.
I said because it would hurt the gears to turn while the engine was off.
He asked why.
I said because there wouldn't be sufficient lubrication.
He asked why and how do I know.
I looked in the manual and no place does it say that.
As someone who has to answer questions relating to warranty of our products I know how important it is to have all questions answered by the O&M manual.
If the gears could be hurt from turning under sail without the engine running you would think it would be in bold print someplace to lock the shaft.
My manual doesn't say it.
I still shift into reverse because.....I heard from someone or read that you should do that.
That doesn't make it true.