The SA4550 Primary Attitude Display upgrades electromechanical ADIs to an LED-backlit display with pilot configurable single or dual-cue flight director command bars, and a glideslope/localizer deviation scale. These convenience features include a fast/slow indicator and mode annunciations to make flying easier and safer. A pilot-selectable single-cue/split-cue display option is also available. For ease of installation, it is plug compatible with various Sperry, Collins and King indicators. The SA4550 accepts input from existing sensors to provide a clear, reliable depiction of the aircraft's attitude in pitch and roll. Along with Sandel's patented bright, high-contrast display?the same technology used in military aircraft?you get unmatched readability in any lighting, while eliminating the high maintenance costs and potential for failure associated with older electromechanical units.
Specifications
Weight: 3.4 lb. (1.54 kg)
Lenght: 7.82 in. (19.86 cm) from back of bezel (Sperry AD-550 retrofit version)
Lenght: 7.51 in. (19.08 cm) from back of bezel (Sperry AD-600 and AD-650 retrofit versions)
Body: 3.975 in. x 3.975 in. (10.084 cm x 10.084 cm)
Bezel: 4.060 in. x 4.060 in. (10.312 cm x 10.312 cm)
Display: LED Backlit
NVIS Mode: Class B compatible per MIL-STD-3009
Power: 20-33 VDC
Requirements: 28 VDC @ 1.4A (40W) nominal
Cooling Requirements: Internal fan requiring ambient air at fan input
Mounting: Standard 4-ATI panel cutout with clamp and Sperry compatible connectors. Bezel adapters available for mounting in 4x5 and 5x5 panel cutouts
Operating Requirements: -20 C. to +70 C. (+55,000 ft. max. altitude)