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Comprehensive Overview of T-28 Instrumentation for Atmospheric Research

This document provides a detailed historical overview and analysis of the T-28 aircraft's instrumentation, which is vital for atmospheric research. It covers various parameters, including position, attitude, velocity, static pressure, humidity, vertical rate of climb, and microphysics. Notable instruments such as VOR/DME, GPS, and various sensors for cloud water, electrification, and chemistry are discussed. The instrumentation also incorporates advanced technologies, such as accelerometers and particle charge measurements, to enhance data collection in turbulent and dynamic atmospheric conditions.

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Comprehensive Overview of T-28 Instrumentation for Atmospheric Research

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  1. T-28 Instrumentation A Historical Overview

  2. T-28 Instrumentation:Position/Attitude/Velocity InitialFinal Absolute Position VOR/DME GPS Storm-relative Tracking radar Telemetered GPS Altitude Static pressure Static pressure (radar altimeter) Attitude Pitch/roll gyro Pitch/roll gyro Angle of attack Heading Magnetic HSI Speed Dynamic/static p Dynamic/static p Time Internal clock GPS

  3. InitialFinal Temperature Rosemount Rosemount Reverse-flow Reverse-flow Pressure Static p Static p Humidity None None T-28 Instrumentation:State Variables

  4. InitialFinal Vertical Rate-of-climb Kopp equation (corrected for (pitch, static and airspeed, engine dynamic pressures) power variations) Horizontal None None Turbulence Fluctuations in Fluctuations in dynamic p dynamic p Accelerometers Accelerometers T-28 Instrumentation:Winds

  5. T-28 Instrumentation:Microphysics InitialFinal Cloud water J-W heated wire DMT (King) heated wire (Rosemount icing rate) Cloud particles Formvar replicator PMS FSSP Precipitation Foil impactor PMS OAP (2D-C) Particles Cannon camera HVPS Hail Foil impactor HVPS Windscreen microphone Hail sensor (OAP) Windscreen microphone

  6. Foil Impactor

  7. HVPS

  8. Hail Sensor

  9. T-28 Instrumentation:Electrification InitialFinal Electric fields None Field mills (6) Particle charge None (HVPS charge plates)

  10. T-28 Instrumentation:Chemistry InitialFinal Tracer gas None (SF6 analyzer) NO / NOx None TEI analyzer

  11. Sniffer mist

  12. T-28 Instrumentation:Experimental(partial list) Total water Kyle evaporator Temperature K-probe Particle catchers Various X-rays X-ray detector

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