Avionic Instruments is at Booth No. 3417 with two of its newer electrical power generation, conversion and conditioning products. Its 2-KVA static inverter is designed and qualified with current component technology and innovative thermal/mechanical techniques. The design provides overall device isolation, excellent overload and non-linear load handling capability.
The FAA issued a draft policy memorandum that would change circuit-breaker layouts in aircraft electrical systems, as well as how pilots deal with tripped circuit breakers. Comments are due by September 12. Principal changes would be for manufacturers to group and identify essential and non-essential circuit breakers in Part 23 aircraft and to publish flight manual guidance about when to reset circuit breakers.
The FAA has issued a draft policy memorandum that seeks to change attitudes about circuit breaker use in electrical systems and how pilots deal with popped circuit breakers. The policy would affect aircraft manufacturers and modification providers. Comments are due by September 12.
Snap-on Industrial is offering a multimeter certification program designed
to meet the electrical monitoring requirements of technicians. The program focuses exclusively on the multimeter, the standard device used to determine
the level of electrical current, usually AC and DC voltage, amps and resistance (ohms), present in a given application. Typical industries where multimeters
CRS Jet Spares is offering a new low-current/constant-voltage battery trickle charger that can be used to float-charge nicad and lead-acid mainship batteries. According to Armando Leighton Jr., the company’s CEO, the unit is a low-cost way to maintain the charge of batteries in storage or on aircraft so that fully charged batteries are available when needed.
General Electric’s Unison Industries subsidiary has sold its Aircraft Parts Corporation (APC) business unit to TransDigm Group for approximately $68 million in cash. APC, a 50-year-old company based in Holtsville, N.Y., manufactures turbine-engine starter generators, generator control units and related components for Cessna Citations, Bombardier Learjets and Bell and Agusta helicopters.
Hawker Beechcraft 99, Moline, Ill., Feb. 18, 2008–No one was injured during the in-flight fire, which the Safety Board attributed to the arcing of the resistor and silicone-controlled rectifier in the flap control circuit. The pilot of the Suburban Air Freight cargo flight “smelled electrical smoke and saw flames behind the power quadrant,” while descending to land at Quad City International Airport (MLI).
Irvine, Calif.-based Eaton Corp. (Booth No. 5967) recently celebrated the successful flight testing of its arc fault circuit breaker (AFCB) technology as a stand-alone replacement for existing circuit breakers. Completing more than 350 normal service flights aboard a U.S.
Canada’s National Research Council has won a patent on “an active and adaptive rotor-blade control system called Smart Spring,” which is designed to reduce the noise and vibration when rotor blades interact with the vortices shed by the tip of the preceding blades. Previous engineering approaches, according to NRC, have attempted to alter the varying aerodynamic load on the blades to reduce the onset of this vibration.
Cessna 650 Citation III, Madison, Wis., Oct. 9, 2005–The inadequate design of the engine’s interstage transition duct yielded after the low pressure turbine (LPT) stage-3 blades had separated and allowed the uncontained release of turbine debris, according to the NTSB. A contributing factor was the separation of a turbine blade.