Abstract: A modular bookshelf system is disclosed. The bookshelf system comprises a top shelf, at least one intermediate shelf, a base shelf, and a plurality of modular side walls. The plurality of side walls are slidingly supported and slidingly engaged between the base shelf and the at least one intermediate shelf and between the top shelf and the at least one intermediate shelf. Each of the plurality of side walls comprises a generally vertical end wall and back wall, and is configured to slidingly engage with and adjust along a plurality of lengthwise slots formed in each of the top shelf, bottom shelf, and at least one intermediate shelf.

Abstract: A vertical and short take-off and landing aircraft comprising a fuselage, a set canard wings, a set of lift fan wings, air deflectors, lift wings, and a pusher propeller. The canard wings are attached forward of the center of gravity to the fuselage. The lift fan wings are attached about the fuselage generally about the center of gravity of the aircraft. The lift fan wings comprise a generally circular duct extending vertically through the wing, a multi-bladed fan mounted for free rotation axially in the duct, and a prime mover connected to the fan for selectively applying rotational torque to the fan. The air deflectors are arranged about the lift fan wing in a louver-type of system for directing even flow of air to the fan. The lift wings are attached to the fuselage aft of the center of gravity of the aircraft and generally at a location vertically higher than the lift fan wings. The pusher propeller is connected to the prime mover and attached to the fuselage aft of the lift Jan wings.

Abstract: A V/STOL aircraft comprising a fuselage, having three sets of wings that are offset lengthwise and vertically. The center set of relatively small relatively thick wings 34 between the canard 14 and the rear relatively thin relatively large aerodynamic lift wings 18 are equipped with identical lift fans 36 enclosed in the wing by upper and lower movable slotted deflectors 40. The attitude of the slatted deflectors may be varied to transition the present invention from hovering to forward flight, and vice versa. The present invention's lift fans are interconnected by a balanced power distribution system, to insure constant, efficient use of total power and provide symmetrical lift about the aircraft's center of gravity resistibility. In the event of an engine failure, the remaining lift is still properly distributed to maintain symmetrical lift, so as to maintain balance and operational control of the aircraft in the lift mode.