Abstract: An aircraft cabin pressure control system controls aircraft cabin pressure by reference to either the partial pressure or concentration of oxygen in the aircraft cabin. Data on ambient pressure, oxygen content, and total pressure are employed to control air pressure in the cabin.

Abstract: A fishing lure comprising a blade member having a general convex cross-sectional configuration, a plurality of eye members secured to the outer convex surface of the blade for selective connection with a fishing line, the peripheral configuration of the blade being substantially irregular egg-shaped with one portion thereof being wider than the longitudinally opposed portion, a ballast member secured to the narrower portion of the blade, and the eye members being disposed in substantial alignment along the longitudinal center line of the blade and spaced inwardly from the periphery of the wider portion thereof whereby the movement of the lure through the water during retrieval thereof is similar to the movement of a kite through the air.