April 27, 1996

Mission Objective

T-39 Flight 09

• To conduct sampling of the DC-8 emissions and provide contrails for the DC-8 to sample.

Flight Log

TAKEOFF/LANDING:
The T-39 departed SLN at 1607UTC and returned at 1830UTC

FLIGHT REPORT:
The T-39 trailed the DC-8 and sampled its emissions at close distance enroute to the CART site. At 1642, the T-39 took the lead and flew a race track course around the CART site as the DC-8 sampled in trail.

METEOROLOGY-REPORT:

INSTRUMENT STATUS:

• CIMS - mass spec - WORKED
• MS - Met/Nav system - WORKED (No GPS)
• AMS - Air Motion Sensor - WORKED
• NDIR - CO2 - WORKED
• 3760 - fine CN - WORKED
• 3025 - ultra fine CN - WORKED
• FSSP - 0.3-20um aerosols - Software problem
• PCASP - 0.1-3um aerosols - WORKED

Highlights

• Obtained the first near-field observations of the HONO/HNO3 ratio.
• Recorded interesting contrail video behind the DC-8.

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