prop size

carlos · Post by **carlos** » Jul 20th, '07, 11:24

I am finishing the restoring of a b31 fb and I have 2 volvo 200Hp engines with 1.5:1 transmision. How can I find the correct Prop size and Pitch?

Thanks for any help

Carlos

scot · Post by **scot** » Jul 20th, '07, 13:05

Gas or diesel?

You are in a tuff part of the world to talk to find a good wheel shop....but your fuel is almost free. What's fuel selling it for now, 12 cents a gallon?

Try this site: http://www.boatdiesel.com
use the "Prop Calculator" function....it will get you close.

I don't know if you have to buy the $25 membership to use that function...but it's worth it if you do.

Good Luck,

In Memory Walter K · Post by **In Memory Walter K** » Jul 20th, '07, 13:06

Carlos- I don't know if this helps but I have an older Sportsfisherman with a heavy teak deck, gin pole, Radar arch, full encloaure and big chair. I'm powered with twin 210 hp Cummins 6bt's and twin discs with 1:50 transmissions. My props are 20' x 20" cupped 3 bladed Nibrals and I cruise at 21-22 kts. Cruise on Cummins 6bt's is 2400 rpm. WOT is 2650. I'm sure the other faithful will chime in with good advice. Walter

carlos · Post by **carlos** » Jul 21st, '07, 11:04

scot wrote:Gas or diesel?

You are in a tuff part of the world to talk to find a good wheel shop....but your fuel is almost free. What's fuel selling it for now, 12 cents a gallon?

Try this site: http://www.boatdiesel.com
use the "Prop Calculator" function....it will get you close.

I don't know if you have to buy the $25 membership to use that function...but it's worth it if you do.

Good Luck,

thanks

that is true a gallon of gas is about 7 cents of $ but i would like to pay a lot more and have Chavez out

thanks for the link

Capt. Mike Holmes · Post by **Capt. Mike Holmes** » Jul 21st, '07, 13:06

Carlos, did you finally decide to replace the 453's?

scot · Post by **scot** » Jul 21st, '07, 16:23

Carlos,

Hang in there....Comrade Hugo is like a bad plate of beans, He to shall pass.

CaptPatrick · Post by **CaptPatrick** » Jul 21st, '07, 16:54

Scot wrote:Comrade Hugo is like a bad plate of beans, He to shall pass.

Yeah, that's what they said about Castro over 40 years ago...

Br,

Patrick

Carl · Post by **Carl** » Jul 26th, '07, 16:08

.07 a gallon, that would be $15.4 to fill the tank. I burn $15.4 worth of fuel just getting out of the harbor. Hell the sales tax on fuel is more then $.07.

In Memory of Vicroy · Post by **In Memory of Vicroy** » Jul 26th, '07, 16:29

Carlos - was that your B31 that got burned in the riot and was for sale on yacht world? Thought about you.

My private email is royvictor@cox.net.

Uncle Vic

bertram31.com

prop size

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