ENGINE SPEED CONTROLLER. IT IS A CIRCUIT BOARD ASSEMBLY FOR INCORPORATION IN CIVIL AIRCRAFT. IT CONSISTS OF COMPARATORS, ALL MOUNTED ON A BOARD.THE CARD RECEIVES TWO SEPARATE INPUTS REPRESENTING ENGINE SPEED. TWO INDEPENDANT AND SIMILAR CIRCUITS ENERGISE SPECIFIC RELAYS TO INDICATE PARTICULAR ENGINE SPEEDS.

THE CLASSIFICATION IS DETERMINED ACCORDING TO GIRS 1 AND 6. CN CODE 90292038 OTHER FOR USE IN CIVIL AIRCRAFT.