KL Series Kneeler O/B Hydroplane

I'm building a ML boatworks Kneeler O/B 350 V2 Hydro. It's going to be 35", To me it looks like it should have a 7.5 O/B electric on it but they say it's for a 3.5. This is my first electric o/b I have built many wooden boat in the past. I'm just thinking if this is a kneeler hydro from what I can remember they were not very big with o/b's . Thinking about using a GI Joe. It's not for racing more scale. What do you guys think?

Thanks Ed

My kneeler 35" started out with a OS21 OB and was too small a motor. I put a 45 K&B lower with a Scorpion outrunner and it looks more to scale.
Mic
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Thank you vert much for the information. It looks like they have changed that kit some. What speed controller did you match it with? I'm also looking for a scale O/B cover.

Thanks again Ed

On 6S I get by with a Flycolor 150. Using a motor under 2Watts (4020-1250Kv)
Mic

Thanks again for all your help.

I only have one last question what is the numbers on your motor? Model number so I can get the same one. I think I'm going with a Lawless drive. Like I said I'm fairly new to electrics but I did buils and have a Byron Originals BD5J and did convert to electric.

Thanks Ed

I bought a Hyperion 4020 (rebadged Scopion) 1320 kv to try an outrunner. Great motor but they are getting expensive over $200. With a 150 esc on our tunnels we run 40X74 motors and see speeds in the mid 50's. Same watts as the outrunner. $80 Leopard 1400-1700 Kv on 6S.
Mic

Thanks so much I'll look in to that when I'm ready!!