Gotta say it’s a nice looking build you have here. Congrats !
Few questions :
Seems I can’t find any max input RPM / power on this gearbox. Any data ? Looked further on their datasheet but didn’t succeeded neither. How is the power transmitted to the shaft ? Are they using 3 gears like parker and Reisenauer superchief or 4 like Neugart and Reisenauer motorchief ?
By modified you mean you asked a longer shaft I guess ?
What about your ESC ? Are you Using Nick’s esc Wavebreaker ? How does it perform ?
Did you hit the 35kph with the torqeedo prop ?
How are you ensuring the waterproofness of the motor connectors ? Does it run without a problem ? Pretty proper solution…
ESC is a VESC based Maytech MTSEC6.6 - get’s a little to hot because of bad thermal coupling in the electric board
The 35kph was with a 7.5x7 suzuki aluprop
The motor connectors in the mastplate are sealed with epdm on the mastplate - when it’s screwed no drop of water inside
May I ask why did you go for Dunker PLG52 (142€ for stock model, I assume the customized one cost more) when Reisenauer Super chief is only a few euro more (165€) but was proven to hold ?
Wow that’s a pretty big prop you were using ! 190mm diameter is really big for our small vessel. Try using a 130-150mm prop, it should be sufficient and you might gain in overall efficiency. FR’s prop are either 135 mm or 150 mm dia.
Well I have the same motor but ordered two gearboxes. I have a 5:1 + another 3:1. I’ll be able to get around 80 & 120kv depending on the gearbox used.
Many here are running the 80100 with 80kV and still using FR prop or even other 150mm props and it works great. IMHO, >6" prop for efoil is not that good (might be efficient but at which cost ? you’ll need way more torque than we normally need for other props)
I have tested my setup with the cheap 7.25 / 7.5 with 5, 6, 7 and 8 pitch - original size and cut down up to 140mm diameter - best works for me (in total over 120kg) a untreated 7.5 x 7 at 1.500w and foiling.
Next time I will try a direct (inrunner) drive and the “Flite” way with a helical planetary gear
your build looks really awesome! Could you please share a metr link. I’m using the Tramps Vesc6+ also passive cooled. I’m happy with this decision.
I have heard that the Maytech VESC has bad thermal conductivity like you are saying. Maytech is just releasing a new 200A version.