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STOLANDThe STOLAND system includes air data, navigation, guidance, flight director (including a throttle flight director on the Augmentor Wing), 3-axis autopilot and autothrottle functions. The 3-axis autopilot and autothrottle control through parallel electric servos on both aircraft and on the augmentor wing, the system also interfaces with three electrohydraulic series actuators which drive the roll control surfaces, elevator and rudder. The system incorporates automatic configuration control of the flaps and nozzles on the augmentor wing and of the flaps on the Twin Otter. Interfaces are also provided to control the wing flap chokes on the Augmentor Wing and the spoilers on the Twin Otter. The STOLAND system has all the capabilities of a conventional integrated avionics system. Aircraft stabilization is provided in pitch, roll and yaw including control wheel steering in pitch and roll. The basic modes include altitude hold and select, indicated airspeed hold and select, flight path angle hold and select, and heading hold and select. The system can couple to TACAN and VOR/DME navaids for conventional radial flying.
Document ID
19770007076
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Grgurich, J. (Sperry Flight Systems Phoenix, AZ, United States)
Bradbury, P. (Sperry Flight Systems Phoenix, AZ, United States)
Date Acquired
September 3, 2013
Publication Date
November 1, 1976
Subject Category
Aircraft Instrumentation
Report/Patent Number
NASA-CR-137972
Accession Number
77N14019
Funding Number(s)
CONTRACT_GRANT: NAS2-6567
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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