Airboat v2 is a near total rework of my first airboat design.
This version requires a bit more support while printing the cowling however this design is much more serviceable in that the servo no longer needs to be glued into the rudder and the cable for the servo is in a better position so that it doesn't get sucked into the fan...
The motor also sits slightly higher in this version to help keep the fan above water.
The electronics are all the same, those being a generic 9 gram servo, 30a drone esc, br2212 1400kv racerstar motor, 3s lipo battery, and a flysky fs-ia6b reciever. other bits are 7 m4 bolts nuts and washers as well as a pair of m2 bolts for the motor.

Creality

Ender 3

No

Yes

0.2

10

Print the body of the boat vertical as its oriented.
The cowling prints with the mounting holes down it probably needs reoriented.
The fan can be a bit of a bear to print if your support settings aren't dialed in well.
next update will most likely be a cowling redesign for a non 3d printed propeller with proper mounting hardware rather than the interference fit that I'm currently using due to all my 2212 motors having bent shafts.