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RTA Capability of Flight Operators: Status Overview

This presentation provides an overview of the Required Time of Arrival (RTA) capability among various flight operators in the National Airspace System. The data, collected as of January 2011, includes information on the RTA capability of Alaska Airlines, American Airlines, Continental Airlines, Delta Airlines, Federal Express, General Aviation, JetBlue, Southwest Airlines, UPS, US Airways, and United. The presentation aims to address questions regarding the accuracy, availability, and usage of RTA among these operators.

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RTA Capability of Flight Operators: Status Overview

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  1. RTA Capability Status of Flight Operators Presented by: Ernie Stellings, NBAA *With data provided by representative’s of each operatordes Data as of January 2011 FAA ATCSCC August 27, 2010

  2. Overview of RTA Capability Among NAS Operators • Alaska Airlines (Courtesy Oscar Vela). Only 737 (7/800 series) aircraft equipped with GE FMS. Accuracy within +/- 20 seconds. • American Airlines (Courtesy Steve Wolford). Mostly RTA capable, only 75 out of 617 aircraft are not. All MD80, 737, and 777 aircraft are capable. Some of their 757 and 767 fleet are not. (Follow up—to what amount of time are they accurate to?) • Continental Airlines (Courtesy Loraine Sandusky/Ron Renk). Percentage of fleet RTA capable at cruise is 57% as of October 2010. --- B737NG (700/800/900) are RTA capable at cruise altitude.  Unable after TOD (Top of Descent) as GE RTA function (B737NG) does not factor for crossing altitude restrictions if the RTA point is after the crossing restriction.  If the RTA is prior to the crossing restriction... not an issue. --- B757/767/777 unable RTA because they are all Honeywell boxes and Honeywell has a known problem with speed changes when in RTA mode. • Delta Airlines (Courtesy Ed Olsen). All aircraft except for the DC9’s. He is going to research Attila usage at ATL.

  3. The CTOP Philosophy: Division of Responsibility • Federal Express (Courtesy Jim Baas). Most of fleet can perform an RTA. Older 727 fleet lacks FMS capability. • GA (Courtesy Jens Henning/GAMA, Richard Boll). Very limited automated ability (only BBJ a/c) that uses GE FMS (same as Alaska uses). Some can meet RTA but only with increased crew workload (manually, not via box entry). • Jet Blue (Courtesy John Gallego). There entire fleet is RTA capable within 1 minute time frame. Like all, can only be to a designated NAVAID or Lat/Long, not point in space. • Southwest Airlines (Courtesy Dan Johnson). All 530 737 aircraft have the FMC that provides RTA capability but that function in NOT enabled. So currently none are able to meet RTA without enabling. • UPS (awaiting response from them). • US Airways (awaiting response from Gary Dockan). • United (awaiting response from Don Wolford).

  4. Questions?

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