how many watts is the 880kv Turnigy T600

Good point 2Doggs , and disagreeing with me is fine lol I am certainly not infallible , I was going on the info that the OP was running 2X 3S packs series'd to give a 6S pack .
Interesting to note the motor specs ARE written as 4-8S in the description but then it also states max voltage is 22V in the specs box
Only way to know is to let the magic smoke out LOL

cheers trumpy, so 1900w and stay under 90amps (bother!)my 1:1 ratio gives between 95 to 104 amps at top speed, although a quick blip, and the 1.25:1 ratio is under powered, 70amps and 1450 ish watts, so I am in the process of fitting a 16tooth gear on drive shaft, and 14 tooth gear on motor, so thats kinda halfway house on the ratio, will have to give up some speed to try and protect the motor, unless anybody knows of a better motor!
many thanks

found the insert image tab!






boat, and gearbox arrangement, with the previous motor, quite easy to change the ratios providing I have the correct gears and belts!

so back to the question, I need to know how many watts the turnigy 880kv outrunner is happy with, then I can work out the set up accordingly, but Im not sure what it is, no info available, anybody from HK looking in?

Originally posted by trumpy We must be shopping at different Places for props Jean-P LOL Here I can get an Octura 40mm in Part No   Diam.       Pitch calculation    Shaft size     1240     40mm 1.57" 1.2 x 1.57 = 1.884   .187 1440     40mm 1.57" 1.4 x 1.57 = 2.198 .187 1540     40mm 1.57" 1.5 x 1.57 = 2.355 .187 1640     40mm 1.57" 1.6 x 1.57 = 2.512 .187 1740     40mm 1.57" 1.7 x 1.57 = 2.669 .187 1740/3 40mm 1.57" 1.7 x 1.57 = 2.669 .187

I spoke from propellers having an affordable price, in order to experiment!

A bronze-beryllium Octura propeller (the one available with different pitches) costs between EUR 30.00 and 56.00 here in Europe. They are intended for high performance racers.

By comparison, a nylon or carbon propeller costs about EUR 3.00.

The Huntsman 28 is a flying boat, in contrast with a displacement boat, like a tug:



With this kind of hulls, you must reach a lift-speed and after that you have not speed limitations, apart the hull's strength.

A diameter's propeller of 50 mm in direct drive seems to me too larger, it's what I use with low speed workboats. When I overpower them, I can heard the typical cavitation's noise.

So, as Troels and Trumpy do, I recommend to reduce the diameter's propeller, not for the reasons they give (hull's speed), but because it's the only way to reduce the pitch.

The boat propellers have not various pitches for a given diameter, as airplane propellers, the pitch depends on the diameter in a given range, 1.4 diameter for two-blade carbon propellers, 1.2 diameter for two-blade nylon propellers, and 1 diameter for three-blade nylon propellers.