DARPA Demonstrates New Adaptive Robotic Landing Gear for Helicopters

By Mike Ball / 22 Sep 2015

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DARPA Robotic Landing GearDARPA has announced that it has conducted a successful experimental demonstration of a novel robotic landing gear system designed for helicopters. The adaptive system replaces standard landing gear with four articulated, jointed legs that are able to fold up next to the helicopter’s fuselage while in flight and are equipped with force-sensitive contact sensors in their feet. During landing, each leg extends and uses its sensors to determine in real time the appropriate angle to assume to ensure that the helicopter stays level and minimize any risk of the rotor touching the landing area.

Helicopters are incredibly maneuverable in the air, but during landing and takeoff their traditional skid- and wheel-based landing gear requires stable, flat surfaces—surfaces that are often unavailable in helicopter-needy environs such as forward operating areas, ships at sea and natural-disaster zones. Having the ability to land on and take off from angled, irregular and moving surfaces would greatly expand the effectiveness of helicopters across many military and national security missions.

Watch the video here:

“The equipment — mounted on an otherwise unmodified, unmanned helicopter — successfully demonstrated the ability to land and take off from terrain that would be impossible to operate from with standard landing gear,” said Ashish Bagai, DARPA program manager.

Bagai also added that along with comprehensive dynamic simulation and structural analyses, the demonstration flight — conducted near Atlanta, Georgia, USA — indicated numerous potential benefits, including:

  • Reduced risk of damage during hard landings, by as much as a factor of five, compared to conventional landing gear
  • Stable landing and take-off on sloping terrain of up to 20 degrees, more than twice current limits, and on craggy, boulder-strewn or otherwise irregular terrain
  • Ship landings in violent sea states
  • Significant increase in capabilities with only a modest increase in landing gear weight

The robotic landing gear system was developed with funding from DARPA’s Mission Adaptive Rotor (MAR) program, and is now undergoing continued development by the Georgia Institute of Technology.

Posted by Mike Ball Mike Ball is our resident technical editor here at Unmanned Systems Technology. Combining his passion for teaching, advanced engineering and all things unmanned, Mike keeps a watchful eye over everything related to the unmanned technical sector. With over 10 years’ experience in the unmanned field and a degree in engineering, Mike’s been heading up our technical team here for the last 8 years. Connect & Contact

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