Flight Number: RF 1 / 970110
Date: 10 Jan 1997
Proposed T/O Time (UTC): 0200
Primary Mission: Systematic Survey (M-2)
Alternate Mission: none
Aircraft Crew:
Scientific Crew
Chief Scientist: Hildebrand/ Wakimoto
Doppler Scientist: Lee
Cloud Physics Scientist:
Observer: Serafin, Scialom, Marecal, Liu
Observer:
Observer:
Observer:
Aircraft ID: N308D
Base of Operations: Shannon
Flight Crew
RAF Project Manager: Laursen
Pilot: Boynton
Co-Pilot: Heiting
Flight Engineer: Brandon, Ringleman
RAF Tech: Zrubek, Namari
ELDORA Engineer: Loew, Neitzel
Location: 52, -10.
Mission Briefing (including proposed flight patterns):
The flight will be an initial systematic survey flight pattern (M-2), centered at about 20W, 55N.
Take off Time (UTC): 0215 Landing Time (UTC): 0800 Location: Shannon
Official Mission Duration: ________________ hr (from Flight Director)
Tapes Utilized: Data Sys.: ______ Radar: _______ WARDS: _____ Video: _____
FASTEX Aircraft Chief Scientist Event Log
Flight Number: FASTEX- 1 Page 1 of 1
Date: 10 Jan 1997 Aircraft ID: N308D Scientist taking notes: Hildebrand
Event Log
Time Position Events & Comments
(UTC) (Lat, Lon)
020600 Shannon Taxi
021130 P-3 takeoff
021505 Takeoff, radio check with N42RF, OK.
031620 55.6, ELDORA back up after a processor board was replaced.
-13.8
032120 55.97, Perl at the north buoy.
-14.92
032525 55.9, End Perl.
-14.1
Waypoints for flight: buoy N: 55.97, -14.92 032120 point 1: 53.87, -16.88
point 2: 55.81, -23.05 point 3: 54.51, -23.85 point 4: 53.65, -17.13 buoy
S: 51.02, -13.33 (center buoy: 53.6, -15.50 -- not for this flight)
035830 54.4, The winds 65m/s at 22 deg are unbelievable! These winds cannot be seen in
-16.5, the ELDORA data, either in the wind magnitudes, or in the shear structures
3000m, msl in the reflectivity fields. The P-3 measures 20 m/s, 166 deg at 1500m, msl.
Possible in-situ wind measurement problem.
040715 53.9, Begin flight leg 1.
-16.96,
2950m,msl
The radar processor has failed at irregular intervals (>5 min). Eric is able
to restart within a short time. It appears the problem was not the processor
board.
Other than these intermittent problems, the radar data look excellent.
042310 54.45, Perl 1. The radar problem appears to have gone away. Data look fine now. The
-18.51 pilots do not report significant ice.
0426 End Perl 1.
043823 54.87, Perl 2.
-19.89
044126 End Perl 2.
0445 55.06, Climbing to 4300 m (15000 ft) to see if flying in less ice will change the
-20.50 problems with the in-situ data.
045019 At 4300 m.
045610 55.39, Perl 3.
-21.60
045530 The aircraft data are OK again. We are at 4300 m, and out of cloud. The
problem could be icing of the dynamic pressure sensor on the radome gust
probe.
050903 P-3 at point 2.
051155 55.807, At point 2, in perl 4 and left turn.
-23.0
0514 There's a problem with the ground reference; the ground is tilted in this
- perl. Eric will restart the rotodome, that didn't fix the problem. Bad roll
0523 angle? Will have to use sea surface returns as a reference to correct this.
...
0537 At waypoint 3, doing perl 5, then heading SE to waypoint 4.
0556 54.296, Perl 6.
-21.98
0559 End perl 6, descending to 2800 m (10000 ft) to see what happens with the
aircraft measurements in the increased ice down there.
060600 At 2775 m. The storm intensity and amount of ice is so much lower here that
either the icing problem (or static buildup) would be unlikely to occur on
this leg.
061304 54.107, Perl 7.
-20.39
061614 End perl 7.
Perl 8 and 9 (last) were omitted due to no weather returns.
064625 At waypoint 4, heading for home, climbing to 20000ft.
065630 53.919, Doing radar sea surface calibration maneuver: 180 turn, 1 min rev hdg, 180
-15.70 deg turn, then head for home.
065850 End reverse heading.
0745 Begin descent into Shannon.
080030 52.695, Landing.
-8.930