Ans - For bigger vessels, inboard boat motors/engine are installed inside the vessel in an engine/motor room. There are Fourmain types of “drive line”. A drive line describes the motor and propulsion system used.
Drive line types:
Standard – engine/motor, gearbox, propshaft, rudder
Aquamatic – Engine/motor, Transom shield, Outdrive or Stern drive.
IPS – (Inboard Performance System). Engine/motor, IPS drive.
Water jet – Engine/motor, gearbox, Jet drive.