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Old Oct 09, 2012, 07:14 AM
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Australia, QLD, Regents Park
Joined Mar 2007
3,774 Posts
Have you considered that the Spartan is a surface drive where as the "torpedo" is a submerged drive, this changes the game. considerably. The motor in the sparten is a 1600 Kv, which unless you are using low voltage (6-7.4 V) is way to fast for a sub surface drive or will need a very small prop.

Without knowing the exact specs of what you require, here is a good reliable sub surface setup, 1000 Kv 28 mm diameter outrunner, something like a KA22-20 or any motor with similar diameter and KV, 40 mm Rivabo or Raboesch prop, a 20 amp speed control, run this on 6 to 7.4 volts for very low amp draw or 10-12 volts for very quick(for a sub surface vehicle) performance.

Cheers
Nick
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