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FLIGHT CONTROLS

AUTOMATIC FLIGHT CONTROL SYSTEM (AFCS)



  MA-1 and SAGE

  MA-1 Fire Control System overview

  Flying the F-106 (History by Chris Casey)
INTRODUCTION TO AFCS
The F-106 was a delta-winged control configuration equipped with elevons' instead of horizontal stabilizer and elevators, which made the Six handle extremely well [read more about flying the F-106...]. The Six handled well at low speeds as well as high ones, even when operating at or near specified minimums. General flight characteristics of the Six fitted with the supersonic rated external fuel tanks are essentially the same as in clean' configuration, except that control at lower speeds is somewhat more demanding. Advantages of the delta wing with its high surface area included excellent performance at high altitudes, and agile turning ability at intermediate and lower altitudes.

All possible due to advanced mechanical flight control components.

For more information about the 'automation' aspects of the AFCS go to the MA-1 Fire Control and SAGE page, which talks more about the intergration of the automation. This page is geared towards the mechanical side, which maintaining as a maintainer was a science in itself.

A COMPLEX SYSTEM
While the automated aspects of the AFCS (MA-1 and SAGE) were advanced for it time, so were the mechanicals of the manual flight controls and artificial feel systems on the aircraft. Flight Control Rigging and maintaining was an involved, complex task and included memebrs from numerious shops to include APG (crew chiefs), Hydraulics, Electrics, MA-1, and in fact AFCS even had it's oun AFSC of 325x0A with FC&M specialists.

FLIGHT CONTROL MECHANICAL COMPONENTS
This is just a start of a list of components included in the flight control system as I can remember them. I will add to this list as I remember/gather more info. Technical Order 1F-106A-4 was the bible for flight controls.
  • Mixer Assembly
  • Elevons
  • Artificial Feel Force Cylinder
  • Auto trim switches
  • HEP Valve - move the main servos, when AFCS engaged
  • HRP valves
  • Shelly Unit

MSgt Billy Marshall's notes during ADTAC directed AFCS Test of 87th FIS F-106A 590051 in 1981.