Model Boat Mayhem - Forum

Please login or register.

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

Author Topic: whats the best motor to use for pulling  (Read 3437 times)

tuggerboy

  • Guest
whats the best motor to use for pulling
« on: October 23, 2010, 12:28:18 PM »

whats the best motor to use for pulling i was thinking car radiator motors or a 900 motor
its for a 3 foot long hand built wooden tug
Logged

787Eng

  • Guest
Re: whats the best motor to use for pulling
« Reply #1 on: October 23, 2010, 03:28:49 PM »

Mobile Marine Models T12 or T24. Very Nice motors real stump pullers  :-))

Give them a call and they will set you up with what you need. I only have Five T12's and they all run on 75mm 4 blade Prop Shop props
http://www.mobilemarinemodels.com/acatalog/Motors.html


Hope that helps
Mark
Logged

Bunkerbarge

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 2,359
  • Location: Halifax, UK
Re: whats the best motor to use for pulling
« Reply #2 on: October 23, 2010, 03:39:43 PM »

whats the best motor to use for pulling 

Probably a Ferrari
Logged
"Dirty British coaster with a salt-caked smoke stack, Butting through the Channel in the mad March days"

ministeve

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 620
  • washing the decks!!!
  • Location: birkenhead wirral
Re: whats the best motor to use for pulling
« Reply #3 on: October 23, 2010, 06:38:57 PM »

as some may know i do a bit of towing sometimes. if you have the money the T12's are great if you don't then motors like car fan motors and interior heater motors are both powerfull and cheap. also if you can get them 12v scooter motors are great too although harder to get now as most are now 24v.
i use Astra interior heater motors in my tug powerful and she is one of the most powerfull tugs we see at our tug days and i can sail all day on one set of battery's
i have seen a set of mmb900's on 60mm props that give nearly 12lbs of pull which is a lot for a tug
Logged

sailorboy61

  • Guest
Re: whats the best motor to use for pulling
« Reply #4 on: October 23, 2010, 06:41:04 PM »

as some may know i do a bit of towing sometimes. if you have the money the T12's are great if you don't then motors like car fan motors and interior heater motors are both powerfull and cheap. also if you can get them 12v scooter motors are great too although harder to get now as most are now 24v.
i use Astra interior heater motors in my tug powerful and she is one of the most powerfull tugs we see at our tug days and i can sail all day on one set of battery's
i have seen a set of mmb900's on 60mm props that give nearly 12lbs of pull which is a lot for a tug

only sometimes Steve??? !!
Logged

ministeve

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 620
  • washing the decks!!!
  • Location: birkenhead wirral
Re: whats the best motor to use for pulling
« Reply #5 on: October 23, 2010, 06:43:51 PM »

yes just a bit  :}
Logged

787Eng

  • Guest
Re: whats the best motor to use for pulling
« Reply #6 on: October 23, 2010, 07:16:12 PM »

 

12lb is that all. Is this an example of enough pull, Two T12's at work %%

Fan motors if you have the space, T12 if you don't I guess!


Mark


Logged

ZZ56

  • Guest
Re: whats the best motor to use for pulling
« Reply #7 on: October 24, 2010, 09:38:45 PM »

What is the diameter of the propeller(s) you are going to fit to the tug?
Logged

Lord Bungle

  • Guest
Re: whats the best motor to use for pulling
« Reply #8 on: October 24, 2010, 09:50:06 PM »

 

Thats a lot of pulling power and an impresive photo, I do like the special skateboard the gent is standing on as well  {-)
Logged

tuggerboy

  • Guest
Re: whats the best motor to use for pulling
« Reply #9 on: October 24, 2010, 10:01:05 PM »

weve got 60 mm propellers but wen we get the money well be putting 70 mm
Logged

ZZ56

  • Guest
Re: whats the best motor to use for pulling
« Reply #10 on: October 24, 2010, 10:47:14 PM »

weve got 60 mm propellers but wen we get the money well be putting 70 mm

70mm propellers have a top effective RPM of 5000.  Power seat or fan motors should be okay for this, usually in the 3000-4000 rpm range on 12 volts. 
Logged

Roadrunner

  • Guest
Re: whats the best motor to use for pulling
« Reply #11 on: October 29, 2010, 05:08:32 PM »

Given the size of your tug at 3 foot, go with geared motors from MFA 2.5:1 for torque with a decent amount of power to get out of trouble or 6:1 for full on torque, at 20 a pop safe to say it won't kill your wallet like others mentioned above!
2.5:1 geared here
http://www.cornwallmodelboats.co.uk/acatalog/MFA_919D251.html
6:1 here
http://www.cornwallmodelboats.co.uk/acatalog/MFA_919D61.html

 They will only require a 25A esc at max but easily run them from twin 20A with a mixer function if its fixed korts, if there steerable forget the mixer and have independent control (which i promise you won't regret!)  not everyone's got deep pockets for the t12 at 40 a pop i don't think so when 2 are normally required for the average tug!

i have no clue why people are suggesting using 70mm props on a 3 foot model? seriously sort it out with the right info!
heard of models falling into holes? fitting 70mm's you'll soon find out!

you should be looking to use around the 40-50mm korts with the appropriate prop to fit inside so 38mm for 40mm korts and 45mm for a 50mm korts ( remember to get lh/rh 4 blade brass props )

just note i have mentioned korts all through since you have not stated what era the tugs based on im just assuming its a plank on frame constructed wooden tug.
Logged

787Eng

  • Guest
Re: whats the best motor to use for pulling
« Reply #12 on: October 29, 2010, 08:03:30 PM »

I thought the question was what's the best motor not the noisiest combination!
Didn't know any body was telling him to use 70 mill props, think the original poster said HE was going to fit 70's :embarrassed:

Also what this with copying my tag line! <*<

Mark
Logged

ZZ56

  • Guest
Re: whats the best motor to use for pulling
« Reply #13 on: October 30, 2010, 07:32:22 AM »

The props should be scaled down same as the vessel.  If that means two 70mms, so be it. 
Logged
Pages: [1]   Go Up