Abstract: A VTOL-capable tilt-rotor airplane having a single tiltable large-diameter prop-rotor attached to an elongated power pod containing the collective and cyclical pitch mechanism, transmission, and engine. The tiltable power pod is disposed at the airplane's longitudinal axis and is partially buried within the depth of the fuselage and protrudes 3-4 ft (0.915-1.22 m) above the top of the fuselage in the VTOL mode. In the horizontal cruising mode, the power pod perched on top of the fuselage front section with the rotor blades protruding in front of the airplane's nose. A connecting bar is used to connect the power pod to the fuselage, allowing the power pod to travel significantly rearward and forward as required for proper balance as the power pod pivots 90 degrees during transition from VTOL mode to the cruising mode, without the power pod being excessively long and unwieldy.

Abstract: A two-seat center-tracking motor vehicle with a narrow body completely enclosing the occupants designed for maximum compactness, energy efficiency, high performance in term of acceleration, speed and maneuverability, and maximum protection of the occupants. The vehicle has two primary road wheels arranged in tandem, and is stabilized at low speeds by a pair of ski-rollers attached to a pair of outrigger struts which are tucked within the width of the body during normal operation. The outrigger struts may be swung outward to widen the base of support when necessary in adverse condition, and they are also capable of lifting the vehicle upright should it fall flat on its side. Suspension and actuation of the outrigger mechanism is by oleo-pneumatic principle.

Abstract: A fixed-wing four-to-six-seat light aircraft that can be easily converted to a roadway vehicle within minutes by a single person in the field, comprising a one-piece wing center panel with foldable wing tips on each sides. The whole wing unit is then rotatably mounted on top of the fuselage. The aircraft features a conventional front-engine-and-propeller lay-out, with a foldable tail section for convenient roadability and garageability. All the wheels are retractable in flight, and it has a long-span, high aspect-ratio wing for exceptional climb and cruise efficiency. The vehicle has a low ride-height with a low center of gravity, four wheels with independent suspension, nose-height leveling for take-off and landing, and anti-sway mechanism for good ground handling ability. Ground propulsion is by automotive-style transmission driving the rear wheels or by hydraulic motors in the all-wheel retractable version.

Abstract: A two-seat center-tracking motor vehicle with a narrow body completely enclosing the occupants designed for maximum compactness, energy efficiency, high performance in term of acceleration, speed and maneuverability, and maximum protection of the occupants. The vehicle has two primary road wheels arranged in tandem, and is stabilized at low speeds by a pair of ski-rollers attached to a pair of outrigger struts which are tucked within the width of the body during normal operation. The outrigger struts may be swung outward to widen the base of support when necessary in adverse condition, and they are also capable of lifting the vehicle upright should it fall flat on its side. Suspension and actuation of the outrigger mechanism is by oleo-pneumatic principle.

Abstract: A fixed wing aircraft that can be automatically and rapidly converted to a roadway vehicle within seconds while driving in the highway, comprising a one-piece wing rotatably mounted on top of the fuselage. The aircraft features a 3-horizontal-surface design allowing good pitch stability and damping in a very short fuselage, stall-resistant feature and reduction in induced drag at cruise speed. The aircraft's wing is enlargeable with additional wing tip segments allowing boost in aspect ratio hence improving efficiency at high loads. The vehicle has low center of gravity, four wheels with independent suspension, nose-height leveling for take-off and landing, and anti-sway mechanism in order to prevent roll-over in a tight turn. Ground propulsion is by both a ducted fan and hydraulic rear wheel drive allowing rapid accleration in the roadable mode.

Abstract: A fixed-wing four-seat light aircraft that can be easily converted to a roadway vehicle within minutes by a single person in the field, comprising a one-piece wing center panel with foldable wing tips on each sides. The whole wing unit is then rotatably mounted on top of the fuselage. The aircraft features a conventional front-engine-and-propeller lay-out, with a short fuselage for convenient roadability and garageability, with horizontal stabilizer of significant span with foldable tips for adequate flight stability. The vehicle has a low ride-height with a low center of gravity, four wheels with independent suspension, nose-height leveling for take-off and landing, and anti-sway mechanism for adequate ground handling. Ground propulsion is by automotive-style transmission driving the front wheels.

Abstract: Exhaust pressure of an air-cooled miniature internal combustion engine is used for fuel metering and fuel delivery to the engine under higher pressure than previously obtainable from muffler back-pressure in the prior art even though the back-pressure in the exhaust system is kept to near zero for maximum engine power and cooling. This is accomplished by tapping on to the engine's exhaust stream right at and facing the exhaust port. As the engine unloads, the muffler's exhaust is further aspirated outward by a faster-moving cooling airstream hence a further reduction muffler's back-pressure causing a decrease in fuel pressurization thus a decrease in fuel flow to the engine in corresponding with a known decrease in fuel requirement at high speed as it unloads, and vice-versa. Special fuel tanks designs for this fuel system are disclosed, as well as additional means for further boosting fuel pressure.