Im pouring some miracle grow on mine right now :DQuote:
Originally Posted by Capt.Insane-o
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Im pouring some miracle grow on mine right now :DQuote:
Originally Posted by Capt.Insane-o
just another night ofQuote:
Originally Posted by Hoss Marine Propellers
http://24.media.tumblr.com/tumblr_m2...po1_r1_250.gif
That's Good Stuff !!!!! :iagree:Quote:
Originally Posted by Capt.Insane-o
didnt do the exact math on it and no one knows the exact gear ratio they did use but when i spoke with bob it was more then 2/1 is what i remembered give or takeQuote:
Originally Posted by Hoss Marine Propellers
14:15 VI SSM or 15:17 IV SSM or a custom set not sure
anyway it was over driven a 10,000 rpm prop speed would not do it and from what i seen and being inthe prop business for a decade my best guess on the pitch was around a 21 -26 p
Did you find the old vids ?Quote:
Originally Posted by aerotech
Aerotech those pics just gave me chills :)
Yes, I found a bunch of them and my wife bought a VHS to dvd converter machine, so we should have some up here real soon.Quote:
Originally Posted by Kcraft
:thumbsup:aerotech Looks like you got a lot of good "stuff". Your ready to rock an roll! This is getting more exciting each day. Gary;)
Quote:
Originally Posted by afr
I don't like to start any arguments on the internet, so please don't take this the wrong way.......Quote:
Originally Posted by afr
When you say 20,000+ prop rpm ........ That just seems a little excessive to me?
I should have expressed my example as 10K engine speed with a 1:2 overdrive ratio to get the 20,000 prop rpm. (Not 2:1 overdrive)
But let's just look at 20K prop rpm .......... with a 26" prop = theoretical speed 492 mph
.......... with a 21" prop = theoretical speed 398mph
Building ANY special gearset and getting anywhere close to 1:2 overdrive in the SSM case is IMPOSSIBLE to do!!!! No Room ..... the drive gear (pinion) would have to have twice as many teeth as the driven gear (propshaft) You could overdrive it slightly and then turn the motor an extreme rpm. You could also run a transmission between the engine & lower unit and overdrive the gearcase.
I've worked with Eddie Knox & prop work on his Top Fuel Hydro "Problem Child".........
They severely overdrive their twin props ........
They can't turn the props +20K (They are close to that, though!!!!)......
They run 6000+ hp ..... sometimes more????
They run 20" pitch 2 blade propellers.......
They hold the record at 261.233 mph in 3.368 seconds!
So, in conclusion, again ..... I'm just saying that it doesn't seem correct ......
Great Pics .......
Looks like a lot of great stuff to work with!!!!
Keep it coming!
The Wright's Device that is laying on the table, that is the up draft style. Jon built for me in 1993, I had tears in my eyes when I found it. I did not know Jon bought it back from the guy I sold it to.