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NASA researchers in gold control room during an F-15 HiDEC flight, John Orme and Gerard Schkolnik NASA researchers in gold control room during an F-15 HiDEC flight, John Orme and Gerard Schkolnik
Photo Number: EC93-42219-5
Photo Date: October 6, 1993
Formats: 558x480 JPEG Image (86 KBytes)
1190x1024 JPEG Image (522 KBytes)
3030x2606 JPEG Image (6,922 KBytes)
Description: NASA researchers Gerard Schkolnik (left) and John Orme monitor equipment in the control room at the Dryden Flight Research Center, Edwards, California, during a flight of an F-15 Highly Integrated Digital Electronic Control (HIDEC) research aircraft. The system was developed on the F-15 to investigate and demonstrate methods of obtaining optimum aircraft performance.

The major elements of HIDEC were a Digital Electronic Flight Control System (DEFCS), a Digital Electronic Engine Control (DEEC), an on-board general purpose computer, and an integrated architecture to allow all components to "talk to each other." Unlike standard F-15s, which have a mechanical and analog electronic flight control system, the HIDEC F-15 also had a dual-channel, fail-safe digital flight control system programmed in Pascal. It was linked to the Military Standard 1553B and a H009 data bus which tied all the other electronic systems together.

Keywords: F-15; HIDEC; Highly Integrated Digital Electronic Control; on-board computer; data bus; Gerard Schkolnik; John Orme; mission control room; monitors

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