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Reading light

B/E Aerospace, Inc. has introduced a longer-lasting reading light that consumes less power and can be used in business jets and commercial passenger aircraft. Using light-emitting diode technology, it consumes only 50% of the power and lasts 10 to 12 times longer than incandescent and halogen lights. The reading light features a patent-pending temperature-compensation circuit designed to increase lamp longevity while generating a high-quality white light.

Compact load cell

Transducer Techniques, Inc.'s MLC Series miniature, high-capacity compression-only load cell/force sensor features a low-profile, compact size for a variety of portable and dedicated applications up to 30,000 lb. The load diameter is slightly convex for accurate load distribution. Low deflection through design results in ultra-fast frequency response. Manufactured from heat-treated 17-4 stainless steel, the sensor is designed to be mounted in a shallow machined flat surface, either free or fastened via a bottom 6-32 tapped hole. The sensing element incorporates bonded foil strain gauges to produce a full-scale output of 2mV/V.

Crew rest compartment heating system

BFGoodrich Co.'s self-regulating, closed-loop air heating system has been selected for Delta Air Lines' MD-11 main deck crew rest compartments. A touch-pad LED display allows crew members to set the desired room temperature. The system includes a microprocessor controller and display, electro-thermal heating units, and air temperature sensors. It is compatible with existing 750-, 1500-, and 2250-W heaters.

Elastomeric bearings

Chicago Rawhide, Aerospace Business Unit has announced increased installations of its main rotor bearings for helicopters, including new main rotor bearings (front and aft) that upgrade an existing helicopter's powertrain performance. The bearings are made by layering special elastomers between disks of various metals and/or composite materials. This reduces a multicomponent assembly to a single-unit design that requires no lubrication.

Strain sensors

The DTD 2684 Series of integral, full-bridge temperature-compensated strain sensors from Columbia Research Laboratories, Inc. is available in various models to match the materials commonly used in aircraft manufacturing. They are easily bonded to critical airframe surfaces by either field technicians or by manufacturing personnel. The use of direct strain measurement is a more accurate representation of fatigue loading experienced by tactical aircraft under various conditions of speed, weight, and mission configuration. Originally designed for fighter jets, these sensors are now applicable in life extension programs, monitoring fatigue on older planes.

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