T-28 Pilot Report

Flight:	807
Date:	030610
Flight Time:	22:27:47 - 23:08:44 UT
Pilot:	Tom Root
Controller:	Andy Detwiler
Location:	Norman, OK (KOUN)
Mission:	Research flight

Computer Time	Video Time	Comments
	22:26:55	Reboot PC (telemetry did not start at the beginning)
	22:27:40	Telemetry working
	22:37:14	Take off
	22:45:15	15000 ft
	22:53:03	Tour reports: Overcast. Wall in front of him; penetration will follow in the next 5 min.
		Andy confirmed with radar indications. Andy asked Tom to do a penetration for about 4 min, and after that to do a 180º to the right.
	22:55:36	Andy asked Tom to do an NO test for 30s (before penetration)
	22:56:21	Tom does the NO test (30s)
	22:57:30	Ready to penetrate the thunderstorm. Flight level 200
	22:58:10	àheading has high reflectivity; Andy recommends to keep the same heading
	22:58:53	Tom ready to get in the cloud
		225902; 16000 ft climbing, 270 air heading 273, rate of climbing 560/min
	22:59:46	à OK out of cloud
	22:59:56	Checking engine; Prior to entering the cloud engine did some banging (not knowing what to do)
	23:00:40	Reports abnormal engine problems; will check why
	23:01:21	Tom reports: had some banging on the engine just prior entering the cloud. Power loss, then bang-bang, was in high blower and had the alcohol on; all temperatures are a little high, pressure OK, will put back in
	23:02:24	High blower, rpm is coming back
	23:02:27	Working OK
	23:02:34	Is not working OK in high blower
	23:02:50	High blower seems to be the problem (not sure why)
	23:02:57	Manifold pressure is 22, everything is stable
	23:03:07	(?) was not ou (?)
	23:03:10	At 16,000 ft
	23:03:53	Problem in selecting high blower; power loss and engine banging (like misfiring); works OK in low blower, but will not be able to go much higher than 16,000
	23:04:37	Tom asked for 17,000 ft.
	23:04:52	Enter the cloud
	23:05:24	Andy recommends 20º to the right
	23:06:04	In the cloud; good
	23:06:05	Thunder
	23:06:10	280º; 16,400 ft
	23:06:32	Thunder
	23:06:36	Thunder
	23:06:49	Continues little flashes; no building up of ice yet
	23:06:55	Series of thunder
	23:06:59	Updraft
	23:07:08	Turning back and heading ~300º. Quite a bit of thunder out there.
	23:07:22	A little bumpy
	23:07:31	2000 ft/min updraft; lots of thunder
	23:07:48	Computer is down; no telemetry
	23:08:07	Reverse course, go right
	23:09:29	Video interrupted

NOTES

Weather

27ºC at startup. Lightning distant northwest and northeast

Maintenance

Operations

Video lags computer by ~ 50 sec.