Model Boat Mayhem

Please login or register.

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

Author Topic: Appropriate ESC for graupner 480 BB race  (Read 1950 times)

Goingdown

  • Guest
Appropriate ESC for graupner 480 BB race
« on: July 13, 2011, 02:08:42 pm »
Hello,

Just looking for some advice on an appropriate esc for a graupner 480 BB race from a 7.2V 4000mah nimh pack.   I believe the motor draws 8A @ max efficiency and a whopping 60A @ stall.   I have a monotronics viper 15 already but don't believe it would be man enough.   would I need to upgrade to a viper 25 with a 20 A fuse between the motor an the ESC?

The application is in a refurbished nikko shockwave hydrofoil, it will be driving through a 2:1 reduction to a submerged prop.   The motor will be water cooled.

many thanks in advance.

Guy  :-))
Logged

john s 2

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 1,172
  • Location: Southend on Sea Essex
Re: Appropriate ESC for graupner 480 BB race
« Reply #1 on: July 13, 2011, 07:43:39 pm »
Why not try what youve got? as long as your fused for 15 amp. A 25 amp esc will still be overloaded at 60 amp.Mtroniks do have any way a built in failsafe.Just make sure you have a means to recover. John.
Logged

Subculture

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 4,189
  • Location: North London
    • Dive-in to Model submarines
Re: Appropriate ESC for graupner 480 BB race
« Reply #2 on: July 22, 2011, 01:58:00 am »
Logged
Pages: [1]   Go Up
« previous next »
 

Page created in 0.099 seconds with 21 queries.