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VC10 Flight Steering Computer

Technical Information

Catalogue No: C0823
Category: Flight Control
Object Type: Signal/Data Processor
Object Name: VC10 Flight Steering Computer
Part No: 16063-1C
Serial No: 4111110
Manufacturer: Bendix
Division: Unknown
Platform(s): VC10 
Year of Manufacture: Unknown
Dimensions:
Width (mm):
190 
Height (mm):
200 
Depth (mm):
370 
Weight (g):
8,618 
Location: Main Object Store
Inscription(s):

Computer-Flight Steering
The unit is marked with the Reference 6TK/4543006.

Notes:

This unit may be part of the VC10 Autoflare or Flight Director systems The Flight Steering Computer weighs 19lbs and was supplied by the Eclipse-Pioneer Division of The Bendix Corporation, Teterboro, New Jersey. This was a derivative of the Flight Steering Computer fitted to the Boeing 707 and was part of the 100 Series Flight Director.

The flight director computes and displays the proper pitch and bank angles required for the aircraft to follow a selected flight path. The flight director instrument system on the VC10 is considered as an alternative to the autopilot for all modes except automatic flare-out and for this reason is integrated with the automatics to only a limited extent. It derives its attitude and compass signals respectively from the main vertical gyros and Polar Path compasses and takes radio information from either group of radio receivers.

These signals are electrically separated from the autopilot as far as is practicable. The system is of necessity duplicated in that each pilot has his own course deviation indicator and horizon director indicator but only a single flight steering computer is provided. The attitude displays have independent absolute monitors consisting of circuits which check the vertically of the gyro and the continuity and operation of the transmission system. Failure warning is by a flag in the horizon indicator. Additionally there are comparator units between the horizon displays and between the compass systems which illuminate warning lights in the event of a difference between the two sides. Comparison is effected mechanically through torque synchros so that electrical isolation between the systems is maintained.

The system, supplied by Elliott Brothers (London) Ltd, is based largely on components of the well-proved Bendix PB-20 autopilot, made under licence by Elliott, and interchangeable with American built components as installed in Boeing 707s.

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