2013 APRIL / Vol. 5 / No. 4 /
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Optional Extended Squitter (ES)
versions of the GTX 33/33D Mode
S transponders are also available,
which can support ADS-B Out.
Garmin's GMA 35 remote mount audio
processor (sold separately) interfaces
with the GTN 750 series and makes it
possible for the GTN to control the
helicopter's audio and intercom
functions, and offers an optional
control panel configuration to
accommodate the right-seated pilot.
The GMA 35 also allows for
workload-reducing technologies
in the cockpit like TelligenceTM, a
speech recognition feature that lets
the pilot activate certain audio
panel functions using voice commands.
The GTN series for helicopters
incorporates three helicopter-specific
databases including an obstacle
database that adds nearly 30,000
additional low-altitude obstacles.
A new terrain database has been
enhanced to show up to 2.5 arc
second terrain resolution.
This high-resolution data improves
terrain alerting by reducing nuisance
alerts when operating at low levels.
Finally, the helicopter navigation
database lets operators navigate to
over 7,000 additional heliports without
having to create user waypoints at
these locations.
Built-in HTAWS is optionally
available to provide operators with
visual and audible alerts of potential
terrain and obstacle conflicts along
the flight path. Garmin HTAWS
incorporates a high-resolution,
five-color terrain scale (red, orange,
yellow, green and black) and also
gives voice callouts when descen-
ding below 500 feet. Voice callouts
operate in all HTAWS modes,
and Garmin's technology
allows the pilot to select multiple
callouts, in one hundred foot inter-
vals, descending from 500 to
100 feet Above Ground Level
(AGL). There is also an optional
radar altimeter input to bring even
greater accuracy to those alerts. In
addition, Garmin's HTAWS offers
a Reduced Protection (RP) mode
that allows low-level operations
with minimal alerting while
continuing to provide terrain and
obstacle protection.
Because many helicopter missions
require the use of night vision goggles,
the GTN series is optionally available
with NVG compatibility straight
from the factory, reducing the need
for aftermarket NVG modifications.
To further help reduce pilot workload,
the GTN supports the installation of
remote switches on the cyclic or the
collective allowing the pilot to create
fly-over Mark on Target waypoints or
remotely tune frequencies, all without
letting go of the controls. The GTNs
can also integrate with Garmin's
G500HTM flight display system for
optimal situational awareness.
The helicopter-specific optimizations
for the GTN series have received
the FAA's Technical Standard Order
(TSO) authorization, and deliveries are
expected later this month starting at
$10,9351. Garmin is currently pursuing
Supplemental Type Certification (STC)
for the installation of the GTN series
in several popular helicopter models. ·
The Civil Aviation Administration
of China (CAAC) issued a
Validation STC (VSTC0601) of
the Supplemental Type Certificate
approving Soloy Aviation Solutions'
Honeywell engine conversion
in Chinese registered AS350B2
helicopters, replacing the factory
Turbomeca powerplant.
The validation of Soloy's successful
STC, which approves the installation
of the Honeywell LTS101-
700D-2 engine in the Eurocopter
AS350B2, will allow Soloy to
proceed with the negotiations
to sell multiple conversion kits
to any AS350B2 registered in
China. Negotiations are currently
underway with aviation companies.
The SD2 kit approval represents
Soloy's second venture into the
ever expanding Chinese market.
Last year CAAC issued the
Chinese type certificate for the
locally produced Avicopter AC311
which utilizes Soloy's engineering
and installation guidelines. This
allows factory installation of
the Honeywell LTS101-700D-2
engine into the AC311. ·
Soloy SD2 kit approved for installation in China
Trio Helicopters and Aviation cc
Hangar 44, Gate 5, Lanseria International Airport PO Box 43, Lanseria, 1748
Tel: +27 11 659-1022/3/4 Fax: +27 11 659 1188
Our mission statement
Trio Helicopters and Aviation cc and their employees
will endeavour to supply prompt, efficient and friendly
service with state of the art equipment, tooling
and yet maintain cost effectiveness at all times!
Authorised to service
Piston and Turbine Helicopters up to 5 700 kg
Bell 47, Enstrom 280
Robinson R22 and R44
Eurocopter AS 350 series
The Schweizer 269 series
The Bell 206 series
The Hiller 12 series
The Allison 250 Series