Originally Posted by
cgentile
Mercury spec sheet says a 5.0 260 horse mpi is 4600-5000
I would think the fiberglass would start to melt on re entry at 72. or the driver and guest may freak..lol
Of course, all these equations are... IF the motor can swing the spec'd prop at the spec'd rpm with the spec'd gears.
So, In that light: The magic box says... 68.6 @ 4,800 (to be safe) w/10% slip
25 |
x |
4,800 |
= |
120,000.00 |
= |
76.3 |
|
0.9 |
|
68.6 |
1.49 |
x |
1,056 |
1,573.44 |
|
|
Sean Conroy,
1964 Formula Jr. (hull #2) project
1972 Greavette Sunflash III
1981 Kavalk Mistral project
"A man can accomplish anything... as long as he doesn't care who gets the credit."