Abstract: An inlet for a ram air turbine. The inlet is positioned forward of a turbine shaft, which is configured to rotate about a portion of an object. The inlet has a fixed geometry that chokes airflow through the inlet to prevent overspeed of the turbine shaft.

Abstract: An inlet for a ram air turbine. The inlet is positioned forward of a turbine shaft, which is configured to rotate about a portion of an object. The inlet has a fixed geometry that chokes airflow through the inlet to prevent overspeed of the turbine shaft.

Abstract: A stationary exercise bicycle is provided having a frame, a resistance member, a drive assembly, a right pedal, a left pedal, a seat and an adjustable seat mechanism utilizing a rack. Assembly and disassembly of a three piece crank arm assembly is accomplished without requiring the assembling and disassembling of the entire drive assembly. The stationary exercise bicycle also provides a variety of users with an optimum seat position and with a convenient latch mechanism to adjust the position of the seat.

Abstract: A rowing exercise machine having an improved user interface. The user interface has a cable for accepting user exercising stroke movements each stroke having a power and return portion. The cable is carried on a cable drum which is mounted on a shaft such that when the cable is unwound and rewound rotation to the shaft is imparted. A flywheel is connected to the shaft for receiving and conserving angular momentum imparted thereto. The machine also includes a brake for opposing the rotational displacement of the flywheel. The user interface further includes a stainless steel eye staked into one end of a strain relief spring with an end of the cable being staked in the opposite end of the spring. A handle is secured to the eye which is capable of withstanding the concentrated forces to which the user interface is subjected.

Abstract: An improved rowing exercising machine is disclosed. The machine has a mechanical apparatus for accepting user stroke movements; each stroke has a power portion and a return portion. The mechanical apparatus converts the energy from the user stroke movements into rotation of a flywheel. In order to closely simulate the feel of momentum in actual rowing activity, electronic circuitry is used to control a brake to apply a force to slow the motion of the flywheel. The amount of force supplied by the brake is independent of the speed at which the user is rowing the machine and is under software control. The brake force can be varied to additionally slow down the rotation of the flywheel during the return portion of a stroke. The rowing machine includes a video display which gives the user the sense of competitive scull racing. The display shows an animated rowing figure having stroke movement synchronized with the user stroke movements. A pacer rowing figure is also displayed.