1 Project A6A AS Aerospace - Flight Control Systems, Design, Installation, and Test Of Piloted Military Aircraft, General Specification For Sponsors: Henry Harschburger and Dave Flavell Background There is an industry need for a comprehensive flight control system specification with details similar to MIL-F-9490 and lessons learned MIL-F-9490D was issued in 1975 and was reaffirmed in 1992 However, it is still a very useful document. Tailored versions are being used on the F/A-18, V-22, and RAH-66 Comanche Government representatives have agreed to participate with Committee A-6 in development of an Aerospace Standard for flight control systems A-6A3 Sept 03

2 Project A6A AS Scope. This specification establishes general performance, design, development and quality assurance requirements for the flight control systems of military manned piloted aircraft. Flight control systems (FCS) include all components used to transmit flight control commands from the pilot or other sources to appropriate force and moment producers. Flight control commands may result in control of aircraft flight path, attitude, airspeed, aerodynamic configuration, ride, and structural modes. Among components included are the pilot’s controls, dedicated displays and logic switching, transducers, system dynamic and air data sensors, signal computation, test devices, transmission devices, actuators, and signal transmission lines dedicated to flight control. The interfaces of flight control systems with related subsystems are defined. A-6A3 Sept 03

3 Project A6A AS MIL-F-9490D will be the baseline,with additional information and lessons learned from recent government and industry documents Major Tasks : Assemble an ad-hoc working group Provide a Microsoft Word version of MIL-F-9490D to the working group Review MIL-F-9490D Status of applicable documents Identify sections requiring major updates Identify new topics/sections to be added Format baseline document in SAE format Incorporating changes Ballot to Panel A-6A3 Sept 03

4 Project A6A AS FCS Specification Working Group Sponsor - Henry Harschburger NAVAIR - Shawn Donley, Hank Agnew USAF - Kahtan Awni, Paul Hundley Army- TBD Boeing- Ian Halley Northrop Grumman- Ken Ugowski, Aldo Arena Lockheed Martin- Dave Bodden BAE Systems- Kurt Vieten, Jay Blosser Hamilton Sundstrand- Steve Avritch HR Textron- Mark Willians Parker Aerospace- Glenn Zwicker Moog- Dave Flavell, Scott Schaefer A-6A3 Apr 05

5 Project A6A AS Plan/Tasks: Because of size of document Flight Control Panel approved change in balloting process to review document in three major parts - June Table of contents, cross ref. AS94900 to MIL-F-9490 Fall Submit Part 1 of the document for ballot.– Fall Submit Part 2 of the document for ballot. - Spring Submit Part 3 of the document for ballot. – Summer Submit the complete document for ballot. - Fall Submit Document for Committee A-6 ballot - Early 2006 Status Tasks: 1.Ballot of Part 1 - Complete Oct Second draft of Part 1 balloted/approved – Complete 14 Feb Review of Part 2 by Working Group - Complete 15 Feb Submit Part 2 for ballot – 1 March 2005 A-6A3 Apr 05

6 Project A6A AS Subsystem Level Requirements Subsystem Requirements Electrical Power Subsystem Hydraulic Power Subsystem Pneumatic Power Subsystem Actuation Subsystems Trim Subsystem Artificial Feel Subsystem Display and Annunciation Sensors 3.6 Component Design and Fabrication Requirements: Component General Requirements: Mechanical Components: Electrical and Electronic Components: Assembling: Component Installation: Component Fabrication: Specific Component Requirements: 4 Quality Assurance Provisions: 4.1 General Requirements: 4.2 Analysis Requirements: 4.3 Software Verification: 4.4 Test Requirement: 4.5 Qualification (Preproduction) Tests: 4.6 Documentation: Part 1 Ballot 10/15/04 and 2/14/05 Part 2 Submit Ballot 3/1/05 Part 3 Plan Incremental Balloting of Document to Panel A-6A3 Apr 05

7 For more information, or to participate, contact: Shawn Donley Project A6A AS 94900