Abstract: An environment sensitive coating system is disclosed that includes a pressure sensitive component comprising a first portion of an oxygen sensitive light emitting material dispersed in an oxygen permeable binder; and a pressure reference component comprising a second portion of the oxygen sensitive light emitting material dispersed in an oxygen impermeable binder.

Abstract: An environment sensitive coating system is disclosed that includes a pressure sensitive component comprising a first portion of an oxygen sensitive light emitting material dispersed in an oxygen permeable binder; and a pressure reference component comprising a second portion of the oxygen sensitive light emitting material dispersed in an oxygen impermeable binder.

Abstract: Reduced span wings with wing tip devices, and associated systems and methods are disclosed. A method for designing a wing in accordance with a particular embodiment includes establishing a target lift value for a winglet to be attached to a wing, the wing having a wing root, a wing tip and a twist distribution that results in a loading at the wing tip that is higher than a target loading level. The method can further include selecting a planform shape of the winglet to produce less of an increase in loading at the wing tip compared to the wing tip loading produced by other winglet planform shapes having the same target lift value. Accordingly, in particular embodiments, the winglet design can offset or at least partially offset the reduced wing tip loading produced by the twist distribution.

Abstract: A cylindrical rotary valve to control or affect fluid flow in processes where the fluid temperature must be maintained within a target range, the fluid pressure is varied and/or the amount of fluid flow is controlled comprising one or more of the following elements alone or in combination: (i) the use of a temperature control core in the valve shaft, (ii) the contoured or tapered shapes or the conduits (iii) the use of the valve to create predictable pulses or waves in the fluid being controlled, (iv) a modular system of valves where the valve body is fixed and the valve shaft is replaceable with a second valve shaft of different conduit shape, (v) a rotary valve with multiple inputs or multiple outputs for either mixing or diverting of input fluids, and (vi) the use of the valve in abrasive particulate blasting and in particular dry ice blasting.

Abstract: Slotted cruise airfoil technology allows production of a substantially unswept wing that achieves the same cruise speed as today's conventional jet airplanes with higher sweep. This technology allows the wing boundary layer to negotiate a strong recovery gradient closer to the wing trailing edge. The result is about a cruise speed of Mach=0.78, but with a straight wing. It also means that for the same lift, the super velocities over the top of the wing can be lower. With very low sweep and this type of cruise pressure distribution, natural laminar flow will be obtained. In addition, heat is transferred from the leading edge of the wing and of the main flap to increase the extent of the natural laminar flow. The slotted cruise wing airfoil allows modularization of the wing and the body for a family of airplanes. The unsweeping of the wing significantly changes the manufacturing processes, reduces manufacturing costs and flow time from detail part fabrication to airplane delivery.

Abstract: Slotted cruise airfoil technology allows production of a substantially unswept wing that achieves the same cruise speed as today's conventional jet airplanes with higher sweep. This technology allows the wing boundary layer to negotiate a strong recovery gradient closer to the wing trailing edge. The result is about a cruise speed of Mach=0.78, but with a straight wing. It also means that for the same lift, the super velocities over the top of the wing can be lower. With very low sweep and this type of cruise pressure distribution, natural laminar flow will be obtained. In addition, heat is transferred from the leading edge of the wing and of the main flap to increase the extent of the natural laminar flow. The slotted cruise wing airfoil allows modularization of the wing and the body for a family of airplanes. The unsweeping of the wing significantly changes the manufacturing processes, reduces manufacturing costs and flow time from detail part fabrication to airplane delivery.