Rotorcraft

April 1, 2013 - 12:30am
Air blown through small holes in the blade makes dynamic stall less severe in demanding maneuvers, according to researchers at DLR.

Researchers at the German Aerospace Center (DLR) in Göttingen may have discovered a way to make helicopters more maneuverable, by reducing the dynamic load on the rotor head control rods.

During rapid forward flight or maneuvering, airflow stalls on the main rotor blade as it retreats (moves backwards), giving rise to a “dynamic stall” and subjecting the rotor head control rods to formidable dynamic loads.

March 28, 2013 - 3:00pm

Russian Helicopters experienced a 10.7-percent increase in helicopter deliveries last year, shipping 28 more than in 2011, the Moscow-based company announced today. “Last year, we delivered 290 helicopters of nine different types to our clients from 19 countries,” CEO Dmitry Petrov said.

March 28, 2013 - 2:45pm

Eurocopter Japan has delivered to Japan’s Fire and Disaster Management Agency a Eurocopter AS365N3 Dauphin medium-twin helicopter retrofitted with a high-speed, real-time satellite transmission system. The helicopter’s satellite communication system enables direct transmission to relay satellites, without interruption by the helicopter’s moving rotor blades. Mitsubishi Electric developed the system, which solves these interference issues when ground-based networks are unavailable.

March 26, 2013 - 3:00pm

UK-based Bristow Helicopters, an affiliate of the Texas-based Bristow Group, today announced a 10-year contract with the UK’s Department for Transport for search-and-rescue (SAR) services for all of the country. The $2.5 billion agreement has a phased-in transition period beginning in April 2015 and continuing until July 2017.

Under the contract, Bristow will provide 11 Sikorsky S-92s and 11 AgustaWestland AW189 medium-twin helicopters across 10 UK bases. Each SAR base will operate either two S-92s or two AW189s. In addition, there will be two training aircraft.

March 21, 2013 - 3:07pm

Two helicopters, understood to be a Eurocopter EC155 and a Eurocopter Super Puma, crashed after a midair during windy snowfall today near the Olympic Stadium in Berlin. One pilot was killed and four people were severely injured, according to local news reports. The two helicopters, along with a third that was not involved in the accident, were participating in a crowd-control training exercise. Accident investigators were on scene at press time.

March 20, 2013 - 2:10pm

Gardner Aviation Services is offering a general aviation fixed-wing and rotorcraft product support catalog that features avionics, instruments and pilot supplies, including the latest in digital displays, communications and ADS-B technologies. The new catalog serves as a buyer’s guide for selecting equipment designed for both fixed- and rotary-wing aircraft. Product photos and descriptions identify hundreds of items and their function.

March 15, 2013 - 9:35am

During a press conference at last week’s Heli-Expo convention in Las Vegas, Kamov general designer Sergei Mikheyev dropped something of a bombshell when he revealed that the Kamov Design Bureau had produced the initial conceptual design for China’s Changhe (CAIC) Z-10 attack helicopter. Having made its public debut at last year’s Zhuhai airshow, the Z-10 is in the early stages of production and has entered service with at least one Chinese army unit.

March 13, 2013 - 1:10pm

Vector Aerospace Helicopter Services North America has been named a Eurocopter service center for the AS332 Super Puma. The certification includes O&I and I+ airframe servicing and allows Vector to perform major inspections, upgrades and retrofits.

March 7, 2013 - 6:00am
Mi-171A2

“The Russian Hour,” sponsored by the Russia-based Helicopter Industry Association, featured the introduction of two of Russian Helicopters’ newest machines.

The Mi-171A2 is a follow-on upgrade to the venerable Mi-8/17 family and represents what program manager Dmitri Zuykov described as the next chapter in looking at broader global markets.

March 6, 2013 - 12:15pm
The UH-1Y utility helicopter is one of 100  upgraded Bell H-1s for the U.S. Marines Corps.

Bell Helicopter delivered the 100th copy of a planned total of 349 H-1 helicopters during a ceremony at its Amarillo Assembly Center earlier this year. The U.S. Marine Corps H-1 helicopter program comprises both the UH-1Y utility helicopter and the AH-1Z attack helicopters.

 
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