NOAA G-IV N49RF

Winter Storms 2006

RESEARCH FLIGHT 16 TRACK 99

Flight ID: N060228

Sensor or system	Number or Name

INE (for wind derivation)	VEW, VNS

Attack Angle	AKRD2

Slip Angle	SSRD2

Accelerometer	ACINS

Temperature Probe	AT4

Dew Point Probe	DPLC

Altitude (for vertical wind derivation)	RA

Static Pressure	PS2C

Dynamic Pressure	QC2C

True Air Speed	TAS2

Constants File	49cal051

Project Directory	601

Notes:

There was one time/data gap during this flight which occurred from 201331Z to 201354Z due to a mandatory DSM shutdown to repair the GPS equipment. From approximately 201300Z to 201400Z, during the DSM shutdown, inertial two was inoperative.

From 214325Z to 214355Z and from 214451Z to214458Z, attack differential pressure one (AP1) had significant spikes.

Dynamic Attack Pressure one (DAP1) began reporting erroneous data from 213446Z through the end of the flight. Along the same lines, attack angle computed from DAP1 (AKRD1) dropped one degree from AKRD2 and never recovered.

Also, upon climb and descent, dynamic sideslip pressures (DBP1 and DBP2) separated by 10 to 15 mb. Due to the absence of a third sensor for comparison, no judgement can be made on which sensor is performing more accurately.

From 215557Z to 215601Z and from 220000Z-220010Z, the Collins GPS sensor was inoperative. Therefore, the Honeywell GPS was used for all derived parameters.

Temperature Sensor two was erroneous throughout the entire flight.

The right dewpoint sensor was ~10 degrees too warm throughout the flight.

Flight Director:	Martin Mayeaux (813) 828-3310 ext. 3086