Kevin Krogness
Well-Known Member
- Joined
- Jun 5, 2008
- Messages
- 2,585
Some very interesting stuff going on here!!!
It has been a while but that sounds right....Thanks for posting Rod. That is a really cool gearbox design. Counting the teeth on the gears in an earlier pic you posted, looks like you are using a 25 to 32 tooth gear set which would yield a ratio of about 1.28:1, (engine gear= 1.28, PTO gear=1)? If that is the case, 40,000 RPM engine would compute to about 31250 RPM prop speed. 1.8" of pitch at that RPM, taking in account some slippage, would get you around 50 mph!!!
I Thought I had seen that boat before ...... If I remember correctly that was 1 of the boats you and Tommy tested down at the river ..... LoL ....Yes it is....This boat was built in 1996 for the Sport .21 class at the Ft.Wayne Internats.....Isn't that an old boat from Tommy Lee?????
I hope the guys are going further this way of geared setups, quite interesting stuff
Tommy ran the boat for a couple of years and it suffered several wrecks.I have put the boat back together a couple of times....hence its increase in weight over the years.
When Tommy retired he gave me the boat and it sat on my shelf with a K&B 21 until 2006 strictly for display...When the .12 outboard project
came along,David and I thought this would be a good boat for that effort.I gave the boat to David Hall and it came out of retirement... The boat currently is sitting on a shelf in Hoover Alabama just
waiting to be called back into service.....
Tim you are right. What you cant see is it has a bottom in it that has about a .040" hole that lets the oil slowly drip into the gearbox.Rod,
The finned rectangular item with the pressure fitting in the top of it, is that just an oil reservoir?
Tim
Thanks David - thats very cool.Tim you are right. What you cant see is it has a bottom in it that has about a .040" hole that lets the oil slowly drip into the gearbox.Rod,
The finned rectangular item with the pressure fitting in the top of it, is that just an oil reservoir?
Tim
David
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