Abstract: An improved personal propulsion device that imparts thrust directly to the user when operating a human powered vehicle to improve mobility thereof. The device allows hands free control of thrust magnitude and direction so both hands can grasp and control bicycle handlebars and brakes, watercraft paddles, ski poles or other apparatuses. In another embodiment, the device can be attached directly to the vehicle. The device can be provided with a collapsible shrouded propeller assembly comprising a shroud made up of interlocking panels that are each removably attached to the end of an elongated strut, with each the struts being pivotally and/or telescopically disposed relative to the propulsion mechanism. The panels can be slidably engaged with the struts. A gradiently flexible garment can be worn by a user and utilized with a gradiently flexible fairing attached to the user and a bicycle to improve aerodynamics when riding the bicycle.

Abstract: An improved personal propulsion device that imparts thrust directly to the user when operating a human powered vehicle to improve mobility thereof. The device allows hands free control of thrust magnitude and direction so both hands can grasp and control bicycle handlebars and brakes, watercraft paddles, ski poles or other apparatuses. In another embodiment, the device can be attached directly to the vehicle. The device can be provided with a collapsible shrouded propeller assembly comprising a shroud made up of interlocking panels that are each removably attached to the end of an elongated strut, with each the struts being pivotally and/or telescopically disposed relative to the propulsion mechanism. The panels can be slidably engaged with the struts. A gradiently flexible garment can be worn by a user and utilized with a gradiently flexible fairing attached to the user and a bicycle to improve aerodynamics when riding the bicycle.

Abstract: An improved personal propulsion device that generally imparts thrust directly to the user. The device allows hands free control of thrust magnitude and direction so both hands can grasp and control bicycle handlebars and brakes, watercraft paddles, ski poles or other apparatuses. The device is adjustable vertically, on the users' back, higher to allow sitting in a canoe or wheelchair and lower for standing on skates, skis, kick scooters etc. In one embodiment, the device includes an air compressor that is operatively connected to a cam mechanism engaged with the propulsion mechanism to provide compressed air. In another embodiment, the device includes a gap control mechanism to reduce or increase the size of the air inlet gap between the lip of the propeller shroud and an air horn to decrease noise levels or increase propulsion. The air horn can be gradiently flexible and warpable to allow controlled movement thereof.

Abstract: An improved personal propulsion device that generally imparts thrust directly to the user. The device allows hands free control of thrust magnitude and direction so both hands can grasp and control bicycle handlebars and brakes, watercraft paddles, ski poles or other apparatuses. The device is adjustable vertically, on the users' back, higher to allow sitting in a canoe or wheelchair and lower for standing on skates, skis, kick scooters etc. In one embodiment, the device includes an air compressor that is operatively connected to a cam mechanism engaged with the propulsion mechanism to provide compressed air. In another embodiment, the device includes a gap control mechanism to reduce or increase the size of the air inlet gap between the lip of the propeller shroud and an air horn to decrease noise levels or increase propulsion. The air horn can be gradiently flexible and warpable to allow controlled movement thereof.

Abstract: An improved personal propulsion device that generally imparts thrust directly to the user. The device allows hands free control of thrust magnitude and direction so both hands can grasp and control bicycle handlebars and brakes, watercraft paddles, ski poles or other apparatuses. The device is adjustable vertically, on the users' back, higher to allow sitting in a canoe or wheelchair and lower for standing on skates, skis, kick scooters etc. A user on a bicycle may prefer to lean forward for comfort and aerodynamics, a device adjustment compensates and delivers level thrust. A user on a snowboard or skateboard stands oblique to the direction of travel, a device adjustment allows in line thrust. Both users' hands and arms are free to balance, protect others by pushing off or break a fall. The present invention can be provided as separate modules that allow interchangeability and use with a direct drive mechanism.

Abstract: An improved personal propulsion device that generally imparts thrust directly to the user. The device allows hands free control of thrust magnitude and direction so both hands can grasp and control bicycle handlebars and brakes, watercraft paddles, ski poles or other apparatuses. The device is adjustable vertically, on the users' back, higher to allow sitting in a canoe or wheelchair and lower for standing on skates, skis, kick scooters etc. A user on a bicycle may prefer to lean forward for comfort and aerodynamics, a device adjustment compensates and delivers level thrust. A user on a snowboard or skateboard stands oblique to the direction of travel, a device adjustment allows in line thrust. Both users' hands and arms are free to balance, protect others by pushing off or break a fall. The present invention can be provided as separate modules that allow interchangeability and use with a direct drive mechanism.

Abstract: An improved personal propulsion device that generally imparts thrust directly to the user. The device allows hands free control of thrust magnitude and direction so both hands can grasp and control bicycle handlebars and brakes, watercraft paddles, ski poles, etc. The device is adjustable vertically, on the users' back, higher to allow sitting in a canoe or wheelchair and lower for standing on skates, skis, kick scooters etc. A user on a bicycle may prefer to lean forward for comfort and aerodynamics, a device adjustment compensates and delivers level thrust. A user on a snowboard or skateboard stands oblique to the direction of travel, a device adjustment allows in line thrust. Both users' hands and arms are free to balance, protect others by pushing off or break a fall.