By using gyros, air driven by vacuum pump or an electromotor the (real) instrument keeps a stable position and indicates the 'movement of the aeroplane around the instrument'.
For more information about gyroscopic instruments.
The range of the Pitch is -/+ 20 degrees, the Bank -/+ 115 degrees.
The Horizon is available as slave instrument. A free port on a master instrument and an Interface Box is needed (see General concept).
The instrument is illuminated by (2) LEDs.
Pulling (and then releasing) the Pull-to-Cage knob will make the instrument 'cage', ie. take it's current Pitch and Bank as 'the new' zero-reference positions. The Slipball remains unaffected.
When the instrument 'fails', the Fail-flag becomes visible and Pitch & Bank 'freeze', but the Slipball remains operating (since in real it is moved by centrifugal forces).
Because of the number of motors (5) and the pull-to-cage-control this Horizon is only available as a Master instrument.
The instrument is illuminated by (2) LEDs.
