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Modern helicopter avionics enhance safety and situational awareness

Modern helicopter avionics enhance safety and situational awareness
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Modern helicopter avionics enhance safety and situational awareness

Product catalog summary
Introduction
Modern helicopter avionics play a vital role in enhancing safety and situational awareness, addressing significant concerns such as Controlled Flight Into Terrain (CFIT) and inadvertent Instrument Meteorological Conditions (IMC). Collaboration between avionics technology firms and industry organizations aims to improve flight crew situational awareness and safety.
Industry Collaboration
In 2005, the International Helicopter Safety Team (IHST) was formed by industry and government entities, including the American Helicopter Society (AHS) and the U.S. Federal Aviation Administration (FAA), to reduce helicopter accident rates by 80% over ten years. The IHST developed a data-driven safety program focusing on safety management systems, improved training, maintenance practices, and leveraging new technologies.
Accident Statistics
Helicopter safety remains a concern despite improvements in fixed-wing aviation safety. In 2012, there were 133 fatal helicopter accidents, resulting in 420 fatalities. Helicopter missions often involve challenging terrain and off-airport operations, increasing the risk of accidents.
Causes of Accidents
CFIT and inadvertent IMC are major causes of helicopter accidents, often due to diminished visibility and loss of situational awareness. Efforts to prevent CFIT focus on improving situational awareness through technology.
Technological Solutions
Avionics technologies are key in reducing CFIT and IMC incidents. Companies like Sandel Avionics and Garmin are developing systems to enhance situational awareness, such as synthetic vision systems and helicopter terrain awareness and warning systems (HTAWS).
Operator Experience
Garmin's GTN 750/650 systems offer helicopter-specific databases and synthetic vision, enhancing safety by providing detailed terrain and obstacle information.
Synthetic Vision
Honeywell's Enhanced Ground Proximity Warning System (EGPWS) and SmartView Synthetic Vision System (SVS) provide pilots with real-time terrain awareness, significantly reducing the risk of CFIT.
Conclusion
Advancements in avionics technology are critical in enhancing helicopter safety and situational awareness. Collaboration between industry and government, along with the implementation of advanced systems, is essential in reducing helicopter accidents and fatalities.
Overview of Helicopter Terrain Awareness and Warning Systems (H-TAWS)
H-TAWS are designed to enhance pilot situational awareness and improve safety by providing guidance cues, terrain shading, and intuitive prompts.
Specifications and Standards
The FAA has established standards for TAWS and H-TAWS, including TSO-C151 and TSO-C194, which outline the requirements for terrain awareness and warning systems.
Implementation and Adoption
Despite not being mandated for helicopters, many operators are adopting H-TAWS. Sandel Avionics' HeliTAWS system exceeds FAA standards and includes features like WireWatch for wire-strike avoidance.
Technological Advancements
Advanced systems like Garmin's G5000H and Rockwell Collins' HeliSure enhance situational awareness with features like touchscreen controls and synthetic vision technology.
Military and Commercial Applications
Sandel's HeliTAWS systems are integrated into military and commercial helicopters, meeting both FAA and military standards.
Research and Development
NASA, in collaboration with the FAA and military, is conducting crash tests to improve helicopter crash survivability.
Collaboration on Helicopter Crash Test
NASA, in collaboration with the U.S. Navy, U.S. Army, and FAA, conducted a helicopter crash test to improve rotorcraft performance and safety.
Avionics in Action
The U.S. Navy contracted L-3 Communications for a digital data link system to enhance situational awareness by linking MH-60R helicopters with surface warships.
Eurocopter's Mid-Life Efficiency Package
Eurocopter selected Sandel Avionics for its EC135 helicopters, incorporating displays to improve pilot workload and safety.
U.S. Army's Laser Detection System
The U.S. Army awarded a contract to UTC Aerospace for a laser-detection system to protect helicopters from laser-guided weapons.
Helicopter Safety Focus
The IHST emphasizes improving situational awareness to reduce accidents, recommending terrain avoidance systems (HTAWS) to prevent collisions.
Company Description
Sandel Avionics Inc. specializes in advanced avionics for rotorcraft and fixed-wing aircraft, offering integrated display systems and certified HTAWS.
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Catalog excerpts

Modern helicopter avionics enhance safety and situational awareness-1

EXECUTIVE BRIEFING Modern helicopter avionics enhance safety and situational awareness Controlled flight into terrain (CFIT) and inadvertent instrument meteorological conditions (IMC) continue to be costly for the rotorcraft community. The effects of helicopter accidents are far-reaching and long-lasting. Avionics technology firms are proactively working with industry organizations to enhance flight crew situational awareness and increase safety. Download this free, informative guide to learn how helicopter operators, airframe manufacturers (such as AgustaWestland, Korea Aerospace, and Sikorsky), professional helicopter organizations (such as IHST), and technology innovators (including Sandel Avionics, Garmin, Honeywell, and Rockwell Collins) are working together and putting modern avionics into action to reduce helicopter accidents and fatalities. Enhancing pilot situational awareness for increased safety All collaborate on helicopter crash test

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Modern helicopter avionics enhance safety and situational awareness-2

FOR THOSE WHO DON’T TAKE FOR GRANTED YOU CAN’T SEE EVERYTHING, THERE’S SANDEL. When Sandel designed the ST3453H HeliTAWS, we didn’t take for granted the extreme conditions and intense mission demands that are put on military helicopters. With performance as the key driver in the development of the ST3453H HeliTAWS, we built a COTS MIL-STD HTAWS for broad military application. It is the only multihazard avoidance system made for helicopters. • Chosen by Sikorsky for the new S-70i Black Hawk • MIL-STD-3009 NVIS Compatible • MIL-STD-810G Environmentally Compatible • MIL-STD-1553 Bus Interface Sandel_MA...

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Enhancing pilot situational awareness for increased safety Modern helicopter avionics technologies enhance situational awareness to increase safety and reduce common aviation accidents. By Courtney E. Howard viation accidents can have far-reaching effects and often unforeseen consequences. Rather than recoiling in reaction to helicopter-related fatalities, the rotorcraft community has banded together and taken a proactive approach—advancing cockpit avionics technologies to aid in reducing unfortunate aviation incidents, assisting pilots, and bolstering safety. Industry & government partner Government...

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Modern helicopter avionics enhance safety and situational awareness-4

Enhancing pilot situational awareness for increased safety Helicopter Safety Team (IHST). IHST is a global group of industry and government professionals working in concert toward an aggressive goal: to reduce the worldwide helicopter accident rate by 80 percent in 10 years (by 2016). The IHST developed and implemented a “data-driven, benefit-focused safety program designed to continuously reduce the risk of helicopter accidents,” describes a representative. “The IHST chartered a Joint Helicopter Safety Analysis Team (JHSAT) to develop data-driven safety recommendations in pursuit of the goal...

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Enhancing pilot situational awareness for increased safety challenging terrain and involve off-airport takeoffs and landings, notes a spokesperson at Sandel Avionics in Vista, Calif. “Helicopters routinely operate below 500 feet above ground level (AGL); obstacles and especially power lines are a threat to helicopter operations throughout the mission, not just at takeoff and landing.” Curtailing causes Controlled flight into terrain (CFIT) and inadvertent instrument meteorological conditions (IMC) are associated with a great many helicopter accidents and, therefore, the focus of many safety discussions....

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Modern helicopter avionics enhance safety and situational awareness-6

Enhancing pilot situational awareness for increased safety “A CFIT accident occurs when an airworthy aircraft, experiencing no contributory systems or equipment problems, under the control of a certificated, fully qualified flight crew no suffering from any impairment, is flown into terrain (or water or obstacle) with no demonstrated prior awareness of the impending collision on the part of the crew. Or, if the flight crew was aware of the impending collision, they were unable to prevent it,” Phillips wrote, referencing David Spiller of the Volpe National Transportation Systems Center in Cambridge,...

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Modern helicopter avionics enhance safety and situational awareness-7

Enhancing pilot situational awareness for increased safety CFIT is, unfortunately, not an issue to be addressed solely by pilot training and experience.” Similarly, Moroze and Snow concluded in their 1999 paper that “systems are needed to improve flight crew situation awareness, especially terrain awareness.” Tapping technology CFIT remains the leading cause of aviation accidents worldwide, according to a representative at FlightSafety International in Flushing, N.Y. Yet, new developments in aircraft technology can increase a pilot’s awareness of terrain. Sandel Avionics officials agree, noting:...

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Modern helicopter avionics enhance safety and situational awareness-8

Enhancing pilot situational awareness for increased safety system (HTAWS), in-flight weather, traffic, back-up radios, and communications, we not only improve safety of flight, but make the pilot’s and crew’s life a lot easier.” The Garmin GTN 750/650 features a helicopter-specific obstacle database with nearly 30,000 low-altitude obstacles, as well as a navigation database with heliports and high-resolution terrain. “For added safety, optional HTAWS provides five-color shading to show nearby terrain in proximity to your helicopter, and provides voice callouts when descending below 500 feet,”...

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Modern helicopter avionics enhance safety and situational awareness-9

Enhancing pilot situational awareness for increased safety path and terrain or an obstacle that the pilot might not see, such as radio towers or buildings. “As a result of EGPWS, the risk of controlled flight into terrain is now 50 times less in Western Europe and North America than it was in 1991, making this one of the biggest success stories in the history of aviation,” Ververs says. “Since the introduction of EGPWS in 1996, Honeywell has received reports of more than 30 incidents where the EGPWS gave an alert and provided pilots with timely awareness of terrain in flight situations.” Honeywell...

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Enhancing pilot situational awareness for increased safety Honeywell SmartView provides helicopter pilots with real-time views of the location of the aircraft in relation to surrounding terrain, and a 3D virtual view outside the cockpit that is unencumbered by visual impediments, such as fog, bad weather, or darkness, Ververs describes. SmartView is also a strategic tool, offering guidance cues, terrain shading and other intuitive prompts to aid helicopter pilots in critical decision-making — ultimately improving pilots’ and passengers’ overall safety, she says. Rotorcraft & TAWS The FAA is credited...

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