An attitude instrument for an aircraft (e.g. a helicopter), the instrument comprising a central display area which moves up and down in response to changes in aircraft pitch and rolls in response to aircraft roll, characterised by having a further indicator in the form of a ring around the central display area having marking indicating compass headings which rotates in response to changes in aircraft heading. An altitude instrument for an aircraft comprising a generally circular instrument face having a rotating altitude indication arranged around a first portion of the circumference with an enlarged or highlighted portion indicating the current altitude numerically, wherein the markings on the first portion move in response to changes in altitude and an indication of rate of change of altitude up or down on a second portion of the circumference. A power instrument for an aircraft comprising a central portion indicating in a linear bar the rotational speed of a power plant component or turbine and/or a propellor or rotor or a turbine and in a circumferential display around the central portion a computed indication of total power as compared to a determined limit.
IMPROVING AIRCRAFT SITUATIONAL AWARENESS INSTRUMENTATION
2021-05-12
Patent
Electronic Resource
English
Situational awareness in large aircraft
SPIE | 1990
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IEEE | 2012
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