The really "Old School" boating thread

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Originally Posted by gn7

So why did some of the earliest drag boats run off the snout. They had to know it wasn't as strong and the flywheel flange, and they didn't need it for turning on a circle course anymore than a drag boat does today. So what was the reason????

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Woodpecker is a circle boat Bob, remember....? :D

Quote:

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Originally Posted by gn7

So why did some of the earliest drag boats run off the snout. They had to know it wasn't as strong and the flywheel flange, and they didn't need it for turning on a circle course anymore than a drag boat does today. So what was the reason????

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I know that this is really reaching but I have also pondered the question. One conclusion that I have is that it was done to keep the oil sump and pump toward the back of the boat and eliminating the need for a new oil pan and pickup arrangment.

I dunno...

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Originally Posted by Wheeler

I imagine that it's something simple and logical like a casting or an ignition or maybe it has to do with Reynolds #'s. I just don't know!

I'm tired of racking my brain Bob and I now have a headache from over use so would you just answer you own question so I can get some sleep! please. :)

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Don't feel alone, it drove me crazy for years, so I finally sucked up my ignorance and asked Rudy WTF??

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Originally Posted by westair

Maybe it just seemed strange to them mounting an engine backwards:biggrin:

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They were backwards in crackers, PDOHs and hydros long before flats, so I don't think it bothered then to install an engine backwards.

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Originally Posted by Sharp shooter

Woodpecker is a circle boat Bob, remember....? :D

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Oh yeah, DUH!:hilarious:



Before V drive flat bottoms, virtually all high speed boats were crackers or hydros with direct drive. There were V drive boats but they tended to be semi planning displacement boats like Chris Crafts and Hackers. Not exactly rockets on the water. Direct drive boats almost always have the engine in backwards because the engine is installed on the same angle as the prop shaft, which is a pretty steep angle. The flywheel has to be to the front, just to get the crankshaft center line low enough to hook to the propshaft. Imagine a cracker with the flywheel to the rear and you can imagine how high the engine would have to sit. By turning the engine around, and putting it on the prop shaft angle, the flywheel almost automatically clears.

So all the best props and development for high speed use in the early days of v drive flats were for the boats with direct drive. V drive flats were an up coming oddity. If you drive a boat thru a v drive, you have to drive it off the nose to use the same props. It was better in a circle boat anyways, and in a drag boat it was just cheaper and easier to run off the snout.
Flywheel forward started to really take hold when the FE Ford became popular because the snout on the cast crank FEs couldn't take it, and they had to run off the flywheel. About the same time, the drag boats were making to much power for the snouts to drive the boat and the high over drive blower, and they were forced to follow suit,

Originally running v drive flats off the nose was strictly due to available props.

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Originally Posted by gn7

Don't feel alone, it drove me crazy for years, so I finally sucked up my ignorance and asked Rudy WTF??

They were backwards in crackers, PDOHs and hydros long before flats, so I don't think it bothered then to install an engine backwards.


Oh yeah, DUH!:hilarious:

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Thanks Bob! I'll sleep better tonight. :thumb:

Thread of the year :thumbup:

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Originally Posted by GotHalos

Thread of the year :thumbup:

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Right on. :)

1960 19 foot Chris Craft with 283 chevy.
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A true "inboard outboard". :D

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'61

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Another -inboard outboard. :D

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