Model Boat Mayhem

Please login or register.

Login with username, password and session length.
Pages: [1]   Go Down

Author Topic: Propeller size according to ship size?  (Read 3461 times)

highvoltage

  • Guest
Propeller size according to ship size?
« on: May 27, 2010, 09:37:22 pm »
I am starting a build. ULSTEIN SX121. I am doing it 1:48 scale so it will be approximately 8' long.

I am looking to get nozzles that house a 95mm prop. My question is will that be okay? Or could I get away will smaller props?

Thank you
John
Logged

dougal99

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 3,401
  • Huntingdon, Cambs, England
  • Location: Huntingdon, England
Re: Propeller size according to ship size?
« Reply #1 on: June 01, 2010, 07:27:07 pm »
I have a table, gleaned from one of the many modelling books I have read over the years, which suggests a 50mm prop for a 48 inch boat. Doubling up you get 100 mm for an 8ft boat, so 96 seems good. However, the table is for a single prop boat suggesting you could drop the diameter for a multi prop. How many are you fitting? What size props are fitted to the original?

HTH

Doug
Logged
Don't Assume Check

boatmadman

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 2,703
  • Location: South Cumbria
Re: Propeller size according to ship size?
« Reply #2 on: June 01, 2010, 08:32:42 pm »
John,

Looking forward to seeing the build.

Where did you get the plans?

Ian (part way into building a Bourbon Orca)
Logged
if at first you dont succeed.....have a beer.....

highvoltage

  • Guest
Re: Propeller size according to ship size?
« Reply #3 on: June 01, 2010, 09:33:16 pm »
Quote from: dougal99 on June 01, 2010, 07:27:07 pm
I have a table, gleaned from one of the many modelling books I have read over the years, which suggests a 50mm prop for a 48 inch boat. Doubling up you get 100 mm for an 8ft boat, so 96 seems good. However, the table is for a single prop boat suggesting you could drop the diameter for a multi prop. How many are you fitting? What size props are fitted to the original?

HTH

Doug

There will be 2 mains. I ordered 100mm 4 blade props. So that should be good...
Logged

highvoltage

  • Guest
Re: Propeller size according to ship size?
« Reply #4 on: June 01, 2010, 09:34:40 pm »
Quote from: boatmadman on June 01, 2010, 08:32:42 pm
John,

Looking forward to seeing the build.

Where did you get the plans?

Ian (part way into building a Bourbon Orca)

I just went off there website and made my own templets for the hall. It not going to look just like theres I adding my own flair to it.
Logged

boatmadman

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 2,703
  • Location: South Cumbria
Re: Propeller size according to ship size?
« Reply #5 on: June 01, 2010, 10:14:10 pm »
John,

Dont know if you have seen my build thread, here:
http://www.modelboatmayhem.co.uk/forum/index.php?topic=17422.0

Ian
Logged
if at first you dont succeed.....have a beer.....

highvoltage

  • Guest
Re: Propeller size according to ship size?
« Reply #6 on: June 01, 2010, 11:21:35 pm »
Yes sir. I saw you build. Actually I saw the post that said wierd hull design (or something like that). Then I saw a link to your build.

Your build is very nice. Thank you for sharing the photos.
Logged

highvoltage

  • Guest
Re: Propeller size according to ship size?
« Reply #7 on: June 02, 2010, 03:48:00 am »
Logged
Pages: [1]   Go Up
« previous next »
 

Page created in 0.028 seconds with 22 queries.