Abstract: A pylon assembly for a tiltrotor aircraft includes a rotor assembly rotatably coupled to a fixed pylon and operable to rotate between a vertical takeoff and landing orientation and a forward flight orientation. The rotor assembly includes a proprotor operable to produce a slipstream. A wing extension is rotatably disposed to the outboard end of the fixed pylon such that the rotor assembly and the wing extension are separated by at least a portion of the fixed pylon. The wing extension has a forward edge and an outboard end. A winglet is coupled to the outboard end of the wing extension and has a forward edge. The wing extension and the winglet are configured to rotate in synchrony with the rotor assembly such that the forward edges of the wing extension and the winglet remain in the slipstream of the proprotor.

Abstract: A pylon assembly for a tiltrotor aircraft includes a rotor assembly rotatably coupled to a fixed pylon and operable to rotate between a vertical takeoff and landing orientation and a forward flight orientation. The rotor assembly includes a proprotor operable to produce a slipstream. A wing extension is rotatably disposed to the outboard end of the fixed pylon such that the rotor assembly and the wing extension are separated by at least a portion of the fixed pylon. The wing extension has a forward edge and an outboard end. A winglet is coupled to the outboard end of the wing extension and has a forward edge. The wing extension and the winglet are configured to rotate in synchrony with the rotor assembly such that the forward edges of the wing extension and the winglet remain in the slipstream of the proprotor.

Abstract: A pylon assembly for a tiltrotor aircraft includes a rotor assembly operable to rotate between a generally vertical orientation, in a VTOL flight mode, and a generally horizontal orientation, in a forward flight mode, and having an intermediate orientation therebetween, in a conversion flight mode. The rotor assembly includes a proprotor operable to produce a slipstream. A wing extension, positioned outboard of the rotor assembly, has a minimal dimension and an outboard end. A winglet is coupled to the outboard end of the wing extension and has a minimal dimension. The wing extension and the winglet are operable to rotate generally with the rotor assembly such that the minimal dimensions of the wing extension and the winglet remain in the slipstream of the proprotor.

Abstract: A pylon assembly for a tiltrotor aircraft includes a rotor assembly operable to rotate between a generally vertical orientation, in a VTOL flight mode, and a generally horizontal orientation, in a forward flight mode, and having an intermediate orientation therebetween, in a conversion flight mode. The rotor assembly includes a proprotor operable to produce a slipstream. A wing extension, positioned outboard of the rotor assembly, has a minimal dimension and an outboard end. A winglet is coupled to the outboard end of the wing extension and has a minimal dimension. The wing extension and the winglet are operable to rotate generally with the rotor assembly such that the minimal dimensions of the wing extension and the winglet remain in the slipstream of the proprotor.

Abstract: An example apparatus for producing a part from a powder using a powder sintering process can include a build chamber including one or more walls and a build piston configured to support the powder and the part. Additionally, the build chamber can enclose a build cylinder and a build surface, and the build piston can be arranged at least partially within the build cylinder. The apparatus can also include a plurality of heat sources distributed in the walls of the build chamber, the build cylinder and/or the build piston, an energy source arranged outside of the build chamber and configured to produce and direct an energy beam to the build surface, and a controller configured to control the heat sources.

Abstract: Apparatus and process for stretch wrapping articles, especially heads of lettuce, wherein a roll (23) of film (24) is supported on a housing (21), and the film is supplied from the roll around a dancer roller (50) and film feed roller (51) to a pair of film feed grippers (33, 34) which grip a leading edge of the film and advance it past an opening (26), whereupon a clamp (27) engages the leading edge of the film to hold it while the grippers release and return to their home position. Additional clamps (28-32) then engage the film to hold it in place over the opening. A head of lettuce (L) is placed on the film in centered relation to the opening, and a ram (37) engages the lettuce and pushes it against the film to stretch the film through and below the opening.