Hello,
Well, it is using originally aircraft type outrunner motors, but designed for higher rpm in boats, 10-poles.
Type of motors are T-REX 40-700īs 700rpm/V
Manufacturer is from Germany,
www.flyware.deAs they are outrunner ("rotating can"), they are cooled by mean of water circulation in nose plate of motor mount
ESC what I have used are either Sentilon High voltage 2-12S 100A (cabable up to 12 lipos in series, home-made watercooling mod.)
or Schultze 160 WK ( watercooled), so there is 4 individual cooling circuits, both escīs and motors have their own
Batteries are Polyquest XP series, either 30-50C discharge rate 4500mAh 9-series ( 1/motor),
or 10S (42V) Polyquest 6000mAh 30C, so it carries quite a pack of energy onboard. Measured highest static load it goes a bit over 100 amps,
motors top continous limit is 125A, 10 second peak 160A
Props vary from 52mm x 1.2 or 1.4 pitch, up to 54mm x 1.5, latest tested was old 15ccm deep-vee racing boat props
Shafts used are 5mm flex-type, similar ones like used in 26ccm racing class boats
Best regards,
Hannu