SIERRA 10/20/12

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Flight Number: 
77
Payload Configuration: 
Galileo HSI
Nav Data Collected: 
No
Total Flight Time: 
3.4 hours
Flight Segments: 
From:NQXTo:NQX
Start:10/20/12 11:53 Z Finish:10/20/12 15:12 Z
Flight Time:3.4 hours
Log Number:12R018PI:Stanley Herwitz
Funding Source:Bruce Tagg - NASA - SMD - ESD Airborne Science Program
Purpose of Flight:Science
Comments:It was a clear and calm morning and three each seagrass and patch reef polygons were completed. The GCS operator varied several autopilot tuning parameters in an attempt to reduce the pitch variations of the aircraft and improve data quality. Not much difference was noted and the team should upgrade to the latest autopilot software and fully tune the autopilot at the next opportunity. The process is not well described in the company literature, so it will take some investigation. After landing and during taxi back using the 2.4 GHz RC link, the right ruddervator began to operate intermittently and completely failed by the time the aircraft reached the hangar. Operation on the 900 MHz link was normal. Later the ruddervator would work normally and further ground testing could not duplicate the failure. The 2.4 GHz RC link is essential for takeoff and landing and the aircraft could not be flown on a single ruddervator as that would result in excessive pitch/yaw coupling. Consequently, the team is standing down and this deployment is concluded with a total of 12 seagrass and 6 patch reef polygons flown.
Flight Hour Summary: 
12R01813R006
Flight Hours Approved in SOFRS192
Flight Hours Previously Approved 175.73
Total Used16.270
Total Remaining 175.73
12R018 Flight Reports
Date Flt # Purpose of Flight Duration Running Total Hours Remaining Miles Flown
11/15/1162Check0.750.75191.25
11/15/1163Check1.121.87190.13
08/24/1266Check1.23.07188.93
10/13/1272Check0.93.97188.03
10/14/1273Science36.97185.03
10/17/1274Check0.57.47184.53
10/17/1275Science4.211.67180.33
10/18/1276Science1.212.87179.13
10/20/1277Science3.416.27175.73

Flight Reports began being entered into this system as of 2012 flights. If there were flights flown under an earlier log number the flight reports are not available online.