Fri, Jan 06, 2012
New Function For Sandel Primary Nav Displays Improves GPS/FMS
Tracking
The FAA has granted TSO certification to Sandel Avionics for a
roll steering software upgrade in its 3-ATI SN3500 and 4-ATI SN4500
Primary Navigation Displays. The pilot-selectable feature works
with an aircraft’s autopilot or flight director and
compatible GPS or FMS unit to automatically make smooth, hands-off
turns while flying a sequence of GPS waypoints. The new roll
steering function, which requires field loading software but no
wiring or modification to existing SN3500/SN4500 installations,
also flies holding patterns, GPS approach entries and other
maneuvers not supported by standard autopilot tracking modes.
“By automatically managing holding patterns, T entries,
procedure turns and more, our new roll steering function reduces
workload and improves performance, all with no mechanical
installation or rewiring costs,” said Jerry Henry,
Sandel’s director of sales. “It makes our SN3500 and
SN4500 even more capable.”
Sandel’s SN3500 and SN4500 Primary Nav Displays are
upgradeable electronic HSI systems that are compatible with
virtually all digital and analog aircraft. Both systems offer a
unique combination of navigation and safety presentations,
including compass heading, moving map, GPS flight plan, RMI and
traffic. Built-in features include an internal Nav converter,
internal autopilot switching, internal Jeppesen NavData database,
and bright, LED sunlight-readable displays that provide full
180-degree viewability, with available options that include
satellite weather, TACAN display and on-demand Class B NVIS
compatibility. The SN3500 and SN4500 have an MTBF of 10,000
hours.
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