ARINCs Role in MDCRS - PowerPoint PPT Presentation

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ARINCs Role in MDCRS

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Fed Ex 194. A300, A320, MD10, MD11. Northwest 41. 757. United 413 ... Fed Ex. 511,917. 375. Delta. 403,428. 265. American. No. of Obs. No. of A/C. Airline ... – PowerPoint PPT presentation

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Title: ARINCs Role in MDCRS


1
ARINCs Role in MDCRS
  • MDCRS Management Team
  • September 7, 2006

2
Agenda
  • History of MDCRS and where we are today
  • Airline Participation
  • Overview of MDCRS Data Processing and
    Communications

3
History of MDCRS
  • In 1986 Dr. John McCarthy recommended an
    automated aircraft reporting system for
    collecting weather observations.
  • ARINC fielded MDCRS in March 1991
  • FAA funded development of MDCRS server and
    operation of the service
  • 3 Participating airlines DAL, NWA, UAL
  • AAL, FedEx, and UPS participation added.
  • Government initiated reimbursement for partial
    costs incurred by airlines in 2003.
  • SWA joined in 2005.
  • Most recent contract between FAA and ARINC
    effective June 2006 with option periods through
    March 2011.

4
Airline Participation
  • Todays numbers
  • 7 participating airlines
  • AAL, DAL, FedEx, NWS, SWA, UAL, UPS
  • 1500 aircraft report Winds and Temps
  • 60 UAL a/c report Turbulence (EDR)
  • 25 UPS 757s report Water Vapor
  • 100,000 observations per day (3M per month)
  • Participating airlines collectively receive about
    30K/month from the Government as cost
    reimbursement

5
Airline Participation 1462 aircraft (June 2006)
  • American 265
  • 737, 757, 767, 777
  • Delta 375
  • 737, 757, 767, 777, MD88, MD90
  • Fed Ex 194
  • A300, A320, MD10, MD11
  • Northwest 41
  • 757
  • United 413
  • A319, A320, 737, 757, 767, 747
  • UPS 124
  • 757, 767, MD11
  • SWA 50

6
Airline Participation No. of Observations
  • 3,291,986 Observations from reporting aircraft
    June 2006

7
MDCRS Data Processing by ARINC

8
Content of Typical MDCRS Messages
  • Header info contains Aircraft ID, Departure
    Station, Destination Station.
  • Time of Observation Day, Hour, Minute (6
    char.)
  • Latitude in Deg, Min, Tenths (6 char.)
  • Longitude in Deg, Min, Tenths (7 char.)
  • Pressure Altitude, feet (4 char.)
  • Wind Direction (3 char.)
  • Wind Speed (3 char.)
  • Static Air Temperature degrees C (4 char.)
  • Roll Angle Flag (1 char.)
  • Phase of Flight (when available) (4 char.)
  • Turbulence (when available) (4 or 5 char.)
  • Icing (when available) (4 char.)
  • Water Vapor Mixing Ratio (when available) (4
    char.)

9
ARINC Processing
  • Recognize ACARS message is a MDCRS message and
    route to MDCRS processor
  • Decrypt, if necessary
  • Remove header, extract raw wx observation data
  • Tag with airline and aircraft ID using codes
    supplied by NWS
  • Validate format
  • Convert data to BUFR format
  • Batch BUFR messages and send to NWS approx every
    15 min.
  • Send ACARS messages in ASCII format to GSD-ESL.
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