{return}
Crew: Streibel, Miller, Arnott, Poellot
011830 Ready for takeoff. An advancing line of thunderstorms with anvil cirrus is overspreading the CART site.
012134 Takeoff. Note: 2dc is showing noise images at the start of flight.
013500 The 2dc is functioning normally and we have air flowing through the cryo hygrometer, although it is still balancing.
013610 First 2dc images, climbing through 26,900'.
0138 We are 17 miles northeast of CART ñ weíve been vectored for traffic. There is a lot of traffic in the area this evening, so we may be limited in our altitude selection. We are getting 2d images, aggregates up to about a millimeter in size.
013930 Turning the cryo to Run from Interrupt. Visually we are in particle fall out, not in cloud.
014600 We are turning around. We had gone over the CART site, level at 27,000', waiting for clearance higher. All probes seem to be working.
014905 CART, 27,000'. Seeing aggregates, irregular particles to 400 um occasionally a millimeter. Concentrations are only a couple per liter.
015400 Pat is turning on the replicator. Less than 3 miles from CART, heading northwest, level 27,000'
015446 CART.
015800 In the turn getting into denser cloud.
020112 CART, very thin cloud here.
020718 CART, still at 27,000'. During the turnaround at the northwest end we were about 40 miles from the echo which means it is about 50 miles from CART. Note: when Pat changed film speed on the replicator, the frame count zeroed.
021423 CART, 27,000í. The thicker cloud is moving toward CART.
022840 CART, 27,000í. Some denser elements have drifted by CART, but we were in a minimum over CART. Heading northwest. Edge of cloud within about 45 miles.
022800 Passed by CART about a minute or 40 seconds ago, and started a spiral climb around the site.
023055 Have leveled at 29,000' for traffic.
023200 The replicator appears to be stuck and done for the flight..
023352 CART, actually about 0.4 miles abeam, at 29,000', waiting for clearance higher. The 1dp is showing particles up to 2 mm. No real signatures on CN. Concentrations are 500/cc or less.
023755 In the turnaround, seeing some particles up to 3mm. CN concentrations up to 800/cc.
024012 CART, 29,000í, in cloud
024632 CART. Will start a spiral down from 29,000'.
025050 Weíve increased our rate of descent from 500 fpm to 1000 fpm, descending through 26,500'.
025245 Down through 24,800' and particles up to 3mm.
025700 Descending from 22,000', still in large particles, at least up to 3mm, aggregates. The air here is pretty dry, a 12 degree dewpoint depression.
030005 Level at 20,000', just at bottom of fallout.
030232 Over CART, just noted that pitot nose has dropped out ñ will switch to pitot wing source.
030510 Getting some weird 2dc images, artifacts. It appears that they are related to St. Elmo's fire.
030745 Into some frequent light turbulence.
030912 CART, 20,000', in large ice crystals. Things have impacted as large as 1 cm on the cloud scope. Will head back to Ponca City now.
032041 Landing
1.9 hours.