I have a 50 inch Thunderbolt and am looking to make it FE. It is setup for single with all new speedmaster hardware. I was wondering if a single motor would push it into the 50's????
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Miss Geico CC1515 2200kv T180 2S2S- Twin Genesis with 2 2700kv 2 T180's 4S2P- Stiletto with 2030kv T120 4S1P-DF33 4082 1600kv T180 6S2P- and lots of gassers! -
cc2028Originally posted by jasoncyclone View Post
http://www.offshoreelectrics.com/pro...series&cat=134 -
Legend 36 sailboat, KMB Powerjet Ed Hardy Viper, ABC jet pwrd BBY Oval Master, ABC Hobby Jetski, NQD Tear Into's, HK Discovery 500, MickieBeez pwrd Jet Rigger!, Davette/Gravtix jet sprint, KMB Powerjet Pursuit, NQD pwrd Jet Catamaran!,Steam pwrd African Queen, Sidewinder airboat, Graupner Eco PowerComment
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There is a leopard 5692 1090 kv in the swap shop at a good priceComment
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Originally posted by sundog View Post
The 780kv motor Sundog listed will get you to 50 on 10s2p...........NEED PARALLEL CONNECTORS?? QUALITY 5.5MM, 8MM, 8 AND 10 AWG, GET THEM HERE:
http://forums.offshoreelectrics.com/...est!&highlight=Comment
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Not a good choice.Originally posted by kendt View Post
KV is way to high for a boat this size, and the rotor size is shorter then the 5692.... JMHO.Comment
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Not sure what the kv rating has to do with the size of the boat??Comment
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KV rating means a whole WHOLE lot. Lower the kv, the higher the voltage needed in return the lower the amp draw will be. Lower the motor kv more torque less top end (which doesn't matter becasue it can swing a large prop to make up the difference). Higher the kv the less torque more top end. With the motor you chose the kv is to high and would end up being a 5s2p or a 6s2p setup. The prop the motor would be able to spin would be a lot smaller and performance would suffer greatly also the amp draw would be very VERY high. You wouldn't want to put a small prop on a very large boat. Size of the motor and kv are very VERY important and relative to the size of the hull you will be using.Originally posted by kendt View Post
Example of different motor kv.
Each motor is going to put out 3000 watts, this is just a comparison and for informational purposes and not related or directed to the hull in the OP.
Motor 1
To reach 3000watts on 4s (1500-2200kv motors) approx 208 amps
Motor 2
To reach 3000watts on 6s (1200-1600kv) approx 135 amps
Motor 3
To reach 3000 watts on 10s (750-900kv) approx 81 amps
The kv rating is also important on maintaning the proper unloaded rpm. Typically should be upper 20k to lower 30k unloaded, although very large hulls should be mid to upper 20k unloadedComment
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