31 May 2003 Flight 803
Research Flight from OUN
Pilot:
T.O. 20:01 UT
T.D. 21:06 UT
Since the last flight, the sampling inlet tube for the NO analyzer has been bent over and tied down to the sampling mast on top of the canopy in an attempt to minimize the possibility of corona discharge.
A cell is noted ~40 nmi
SW of KTLX making CGs at 1740 UT. New cells keep forming, and each makes a few
CGs. At
Tom reports cloud bases at 10.5 kft on climbout at
Then head southward toward new development.
Reverses course and goes back through toward the north,
exiting cloud at
Reverses course and goes back through toward south.
Reverses course and goes back through to north.
The DMT element used on this flight had a thicker epoxy coating. Tests on the calibration mixture in the Tedlar bag after the flight showed a concentration of only 9 ppbv. There must have been a leak or some irregularity in the dilution process used when filling the bag.