Model Boat Mayhem

Please login or register.

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

Author Topic: running 4 graupner motors  (Read 1819 times)

tubby tomo

  • Guest
running 4 graupner motors
« on: January 17, 2011, 10:56:57 am »


    hi Ive asked about running 4 graupner 900 on chit chat but no help i wanted to find out what speed controller to get as the amps would be high i would be the props would be 75mm 5 blade
Logged

Tug-Kenny RIP

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 7,625
  • Location: Newport. S Wales
Re: running 4 graupner motors
« Reply #1 on: January 17, 2011, 11:13:37 am »


Are we talking about Four motors ?

If so then an RSC would be needed for each one, so it's a question of maximum amps per motor, so I would start of with a 20 amp version fused to 15A for a trial.

Regards

Ken

Logged
Despite the high cost of living   .......... It remains popular

tubby tomo

  • Guest
Re: running 4 graupner motors
« Reply #2 on: January 17, 2011, 11:18:00 am »



      hi ken yes 4 motors  ken im not to bright on electrics what is  RSC
Logged

Tug-Kenny RIP

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 7,625
  • Location: Newport. S Wales
Re: running 4 graupner motors
« Reply #3 on: January 17, 2011, 11:22:35 am »

Is it possible to bench test one motor connected to an ammeter?

Just connect it to a battery direct and squeeze the drive shaft between a cloth and watch the meter.  (carefully watching the fingers eh!!)

You might be surprised as to how little amps you really need.

Ken

ps

I use Mark's 900 motors on 15A esc's



Logged
Despite the high cost of living   .......... It remains popular

tubby tomo

  • Guest
Re: running 4 graupner motors
« Reply #4 on: January 17, 2011, 11:25:03 am »



        THANKS KEN ILL DO THAT   :-))   PS WHEN YOU SAY MARKS MOTORS WHO ARE WE TALKING ABOUT
Logged

DickyD

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 9,423
  • www.srcmbc.org.uk
  • Location: Southampton UK
    • SRCMBC
Re: running 4 graupner motors
« Reply #5 on: January 17, 2011, 12:07:14 pm »

Logged
Richard Solent Radio Controlled Model Boat Club http://www.srcmbc.org.uk

tubby tomo

  • Guest
Re: running 4 graupner motors
« Reply #6 on: January 17, 2011, 12:19:16 pm »

 



    thanks dicky i have just checked & hes out of stock   thanks mate
Logged

DickyD

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 9,423
  • www.srcmbc.org.uk
  • Location: Southampton UK
    • SRCMBC
Re: running 4 graupner motors
« Reply #7 on: January 17, 2011, 12:27:42 pm »

Check out Actions site, Dave sells them.

http://www.action-electronics.co.uk/pdfs/MOTORS03.pdf
Logged
Richard Solent Radio Controlled Model Boat Club http://www.srcmbc.org.uk
Pages: [1]   Go Up
 

Page created in 0.109 seconds with 22 queries.