Hi Sparkman. It might help if you tell us what size Huntsman it is. 34" or 46". Also what hull. Either wooden, or glassfibre. Also, what sort of performance you expect of it. Are you using brushed or brushless motors ? Hopefully, if you let the group know, you might get an answer. Best wishes, Dave W 😊
Sorry yes ,it's a refurbishment of a 34 " all wood boat .found in a loft and been there a long time , I prefer brushed motors and would like it to plane ( can always slow it down .thanks for your interest Brian
As this is a refurbishment chances are it was fitted with an IC engine in which case you need to remove all the gunge and heavy mounting blocks from inside the hull as well as checking the propshaft and bearings. If you can get the weight reduced then I would expect a speed 600 motor with a 30 to 40 mm prop should suffice. A 20/25 watt ESC powered by a NiMh would also be suitable and keep the weight down. If you use racing props the current will be greater than if you use brass 3 blade props, and the bigger the prop the greater the current. As a general rule the prop should have a diameter of no greater than that of the motor. The voltage of the NiMh must not exceed the max voltage the ESC can handle. A higher voltage will reduce the current draw so a 9.6v may be better than a 7.2v and give a longer run time. If you already have batteries for other models I would use those but SLA's are heavy and may hinder planing. If you already use LiPos then make sure your ESC can stand the voltage and has a built in cut off to protect the battery.
Dave M beat me to it. I have the same model. It's fitted with a speed 600BB motor and a 40mm prop. I use an Mtroniks 25amp speed controller (which is being changed to a 30amp Tio esc shortly so I can use my Lipos). It planes nicely on out lake, and seems quite good handling. Good luck with yours 😊