speed 400

[csr101]

What is the best (fastest) brushed 400 motor for a 14" micro boat?

[Kentucky]

This one's pretty nice.
http://www.aircraft-world.com/shopexd.asp?id=183

Nothing on a brushless setup thou. ;)

Cheers

[norbique]

It depends how many cells will you use, as well as hull type, weight, prop, etc.

If you can get Graupner parts, they have quite a variety of different (brushed) Speed 400 motors.

I have the 4.8V, the 6V an the 7.2V version as well. The 4.8V is a hot little motor.


Specifications for the Speed 400 7.2V - Part Nr. 1794

Nominal voltage 7,2 V
Operating voltage range 3,6 ... 8,4 V
No-load rpm 16400 min–1
No-load current drain 0,5 A
Current drain at max. efficiency 3,3 A
Current drain when stalled 21 A
Max. efficiency without gearbox 72 %
Length of case, excl. shaft 37,8 mm
Diameter 27,7 mm
Free shaft length 13,8 mm
Shaft diameter 2,3 mm
Weight 73 g


Specifications for the Speed 400 6V - Part Nr. 3321

Nominal voltage 6 V
Operating voltage range 2,4 ... 7,2 V
No-load rpm 18000 min–1
No-load current drain 0,7 A
Current drain at max. efficiency 4 A
Current drain when stalled 25 A
Max. efficiency without gearbox 70 %
Length of case, excl. shaft 37,8 mm
Diameter 27,7 mm
Free shaft length 13,8 mm
Shaft diameter 2,3 mm
Weight 73 g


Specifications for the Speed 400 4.8V - Part Nr. 3320

Nominal voltage 4,8 V
Operating voltage range 1,2 ... 6 V
No-load rpm 22000 min–1
No-load current drain 1 A
Current drain at max. efficiency 7 A
Current drain when stalled 40 A
Max. efficiency without gearbox 66 %
Length of case, excl. shaft 37,8 mm
Diameter 27,7 mm
Free shaft length 13,8 mm
Shaft diameter 2,3 mm
Weight 73 g

Or look here: http://www.hobby-lobby.com/speed400.htm

[csr101]

Thanks for the info. :)
Brian