Altitude Preselect System APS4A
The Altitude Preselect System APS4A is intended to be used as an interface between Air Data Display or Primary Flight Display (e. g. Thommen AD30- and AD32-Family, Garmin G600, Aspen EFD 1000) with alerter function and a variety of existing autopilot systems to supply altitude preselect- and hold-function. The system is mainly designed for retrofit installation and consists of a small lightweight interface box and an optional altitude preselect indicator/switch.
General
The Altitude Preselect System APS4A, P/N: AS01-ALTPRE-00, is intended to be used as an interface for Air Data Displays or Primary Flight Displays with alerter function, and a variety of existing Autopilot Systems to supply Altitude Preselect- and Hold-Function:
- ARC (Cessna) 400B
- ARC (Cessna) 800B
- ARC (Cessna) 1000
- Century 4
- Century 41
- Century 2000
- Collins AP106
- Bendix King KFC 200
- Bendix King KFC 250
- Bendix King KFC 300
- M4D
- S-TEC System 30
- S-TEC System 50
- S-TEC System 55
- S-TEC System 55X
- S-TEC System 60
- S-TEC System 65
The System is mainly designed for retrofit installation and consists of a small lightweight interface box, the Altitude Preselect Interface Box P/N: AS02-ALTPIB-()() and an Altitude Preselect Indicator/Switch.
Operation:
Select desired altitude on Air Data Display or PFD and then enable Altitude Alerter function. Press Altitude Preselect Switch, lower ARMED-indication field is lighted blue. Altitude Preselect Mode is now engaged. When the preselected altitude is reached, the system automatically activates the Altitude Hold-Mode at this altitude. The ARMED-annunciation extinguishes and the ALT-indication within the AP system is ON.