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General Technics CYA-100 Angle of Attack Indicator
DOWNLOAD THE CYA-100 INSTALLATION AND OPERATION MANUAL (DOC FILE)
DOWNLOAD THE FAA APPROVAL LETTER (PDF FILE)
ENVIRONMENTAL CONDITIONS

While General Technics has designed and tested to RTCA DO-160 over the past 30 years, we have decided to design and test instead to a much more rigorous and publicly available standard.
That standard is MIL-STD-810. The latest release is Revision G, published October 31, 2008.
      Software is similarly constrained by the FAA by reference to RTCA DO-178, currently at Revision B. By definition, the General Technics CYA-100 cannot be used as a primary instrument, and the display presented to the pilot is programmed by the end user. The internal microprocessor firmware is installed by the manufacturer, and any attempt by the end user to alter it will render the device inoperable with a blank display.  For these reasons, the CYA-100 firmware is classified under RTCA DO-178B Design Assurance Level (DAL) E (no effect).

The General Technics CYA-100 will survive, operate, or be destroyed under these conditions:

                                                                 Temperature: -65°C to +150°C Storage, -40°C to +85°C Operating
                                                                        Altitude: No effect from +60 Pounds per Square Inch (PSI) to 0.001 Torr vacuum, inclusive of explosive decompression
                                                                        Temperature Variation: No effect from -40°C to +85°C operating, regardless of ramp rate or number of cycles
                                                                        Humidity: No effect
                                                                        Shock & Crash Safety: No effect to 40 g, mounting structure dependant
                                                                        Vibration: No effect from 0-2000 Hertz to 20 g, inclusive of resonance frequency, mounting structure dependant
                                                                        Explosion proof: Intrinsic by design
                                                                        Water Proof: Will operate while submerged
                                                                        Fluids Susceptibility: Not susceptible to all listed fluids, will operate while submerged in all listed fluids
                                                                        Sand & Dust: Electrically not susceptible, mechanically susceptible to vane abrasion and bearing seizure
                                                                        Fungus Susceptibility: Not susceptible, no fungus nutrients by design
                                                                        Salt & Fog: No effect
                                                                        Magnetic Effect: No effect
                                                                        Power Input: 7-35 VDC input with no effect on operation
                                                                        Voltage spike: No effect
                                                                        Audio Frequency Conducted Susceptibility: No effect
                                                                        Induced Signal Susceptibility: No effect
                                                                        RF Emission and Susceptibility: No effect
                                                                        Lightning Susceptibility: Unknown, airframe dependant
                                                                        Icing: Vane probe is not heated, and may not function in icing conditions
                                                                        ESD: Not susceptible to normal unprotected handling, inputs ESD protected by current limiting and Vss/Vdd diodes
                                                                        Flammability: PMMA vane and urethane display compound will burn (<10 grams mass)