In one embodiment, an electric outboard motor includes a motor casing in which an electric motor and a propeller shaft are accommodated; a shaft configured to connect the motor casing to an operation handle; a fixing member configured to fix the shaft to a hull; and a shaft adjuster provided on the shaft and configured to adjust distance between the motor casing and the fixing member.

A human powered watercraft or land vehicle is described herein. A watercraft or land vehicle may have two pedals that reciprocated are in a linear or slightly curved trajectory but not a circular motion. As the two pedals are reciprocated, an output shaft is rotated in either a clockwise or counterclockwise direction when the left pedal is pushed forward or when the right pedal is pushed forward. The output shaft may be connected to a propeller of a watercraft or a land vehicle so as to propel the watercraft or land vehicle forward. The output shaft may receive rotational input through two gears mounted to the output shaft with one-way bearings that enable the output shaft to rotate in the same direction regardless of whether the left pedal or the right pedal is being pushed forward.

An electric inboard motor for a boat, includes a main body, a motor, a motor controller, a motor mounting base, a paddle, a paddle shall, a speed-adjusting handle assembly and a main body overturning locking mechanism. The speed-adjusting handle assembly further includes a speed-adjusting handle spindle, an axle sleeve, a handle sleeve, a button, a spring and at stop block; one end of a handle shell is fixedly connected with the stop block, and the handle sleeve abuts against a stepped face of the stop block, the speed-adjusting handle spindle is connected with the handle shell in a rotation manner, the speed-adjusting handle spindle is connected with the axle sleeve through a first pin, the axle sleeve is fixedly connected with the button, and the axle sleeve is connected with the stop block in a rotation manner and connected with the handle sleeve.

A human powered watercraft or land vehicle is described herein. A watercraft or land vehicle may have two pedals that reciprocated are in a linear or slightly curved trajectory but not a circular motion. As the two pedals are reciprocated, an output shaft is rotated in either a clockwise or counterclockwise direction when the left pedal is pushed forward or when the right pedal is pushed forward. The output shaft may be connected to a propeller of a watercraft or a land vehicle so as to propel the watercraft or land vehicle forward. The output shaft may receive rotational input through two gears mounted to the output shaft with one-way bearings that enable the output shaft to rotate in the same direction regardless of whether the left pedal or the right pedal is being pushed forward.

In one embodiment, an electric outboard motor includes a motor casing in which an electric motor and a propeller shaft are accommodated; a shaft configured to connect the motor casing to an operation handle; a fixing member configured to fix the shaft to a hull; and a shaft adjuster provided on the shaft and configured to adjust distance between the motor casing and the fixing member.

A human powered watercraft or land vehicle is described herein. A watercraft or land vehicle may have two pedals that reciprocated are in a linear or slightly curved trajectory but not a circular motion. As the two pedals are reciprocated, an output shaft is rotated in either a clockwise or counterclockwise direction when the left pedal is pushed forward or when the right pedal is pushed forward. The output shaft may be connected to a propeller of a watercraft or a land vehicle so as to propel the watercraft or land vehicle forward. The output shaft may receive rotational input through two gears mounted to the output shaft with one-way bearings that enable the output shaft to rotate in the same direction regardless of whether the left pedal or the right pedal is being pushed forward.

A human powered watercraft or land vehicle is described herein. A watercraft or land vehicle may have two pedals that reciprocated are in a linear or slightly curved trajectory but not a circular motion. As the two pedals are reciprocated, an output shaft is rotated in either a clockwise or counterclockwise direction when the left pedal is pushed forward or when the right pedal is pushed forward. The output shaft may be connected to a propeller of a watercraft or a land vehicle so as to propel the watercraft or land vehicle forward. The output shaft may receive rotational input through two gears mounted to the output shaft with one-way bearings that enable the output shaft to rotate in the same direction regardless of whether the left pedal or the right pedal is being pushed forward.

A human powered watercraft or land vehicle is described herein. A watercraft or land vehicle may have two pedals that reciprocated are in a linear or slightly curved trajectory but not a circular motion. As the two pedals are reciprocated, an output shaft is rotated in either a clockwise or counterclockwise direction when the left pedal is pushed forward or when the right pedal is pushed forward. The output shaft may be connected to a propeller of a watercraft or a land vehicle so as to propel the watercraft or land vehicle forward. The output shaft may receive rotational input through two gears mounted to the output shaft with one-way bearings that enable the output shaft to rotate in the same direction regardless of whether the left pedal or the right pedal is being pushed forward.

An electric inboard motor for a boat, includes a main body, a motor, a motor controller, a motor mounting base, a paddle, a paddle shall, a speed-adjusting handle assembly and a main body overturning locking mechanism. The speed-adjusting handle assembly further includes a speed-adjusting handle spindle, an axle sleeve, a handle sleeve, a button, a spring and at stop, block; one end of a handle shell is fixedly connected with the stop block, and the handle sleeve abuts against a stepped face of the stop block, the speed-adjusting handle spindle is connected with the handle shell in a rotation manner, the speed-adjusting handle spindle is connected with the axle sleeve through a first pin, the axle sleeve is fixedly connected with the button, and the axle sleeve is connected with the stop block in a rotation manner and connected with the handle sleeve.

A propulsion system for a boat includes a motor, a connecting arm, a fairing portion intended for being mounted on the boat, at least one propeller, a belt for transmitting the torque from the motor to the at least one propeller, the belt forming two belt sections between the motor and the propeller. The propulsion system further includes a first rotary assembly with the belt passing therethrough and capable of pivoting relative to the fairing portion about a geometrical axis directed towards the top, so as to orient the at least one propeller relative to the boat in order to turn the latter, and a second assembly capable of being translated relative to the first rotary assembly in order to retract the at least one propeller.