Business

December 5, 2012

Sikorsky delivers first CH-53K prototype heavy lift helicopter to flight test team

Sikorsky has delivered the first CH-53K prototype heavy lift helicopter for ground-based flight tests. The aircraft will triple the U.S. Marine Corps’ external load carrying capacity to more than 27,000 pounds over 110 nautical miles in hot/high conditions.

The Sikorsky team developing the CH-53K heavy lift helicopter for the U.S. Marine Corps has delivered the first prototype aircraft – the Ground Test Vehicle – from the assembly line to the flight test team

The move will enable Sikorsky, a subsidiary of United Technologies Corp., to prepare and test the GTV aircraft for hundreds of hours of powered ground checks ahead of the four follow-on flight test helicopters that will take to the skies during 2014-15.

“The primary purpose of the GTV is to shake out the CH-53K helicopter’s dynamic systems by thoroughly testing and measuring the performance of the rotor blades, transmission, and engines while the aircraft is tied to the ground,” said Michael Torok, Sikorsky’s CH-53K program vice president. “Extensive ground-based flight checks with Sikorsky and NAVAIR test pilots at the cockpit controls will confirm whether these dynamic systems, as well as hydraulic, electrical, and avionics systems, can meet the requirements established by the Marines for their next-generation heavy lift helicopter.”

Though designed to the same footprint size as the CH-53E Super Stallion™ helicopters they will begin to replace in 2019, CH-53K helicopters will triple the external load carrying capacity to more than 27,000 pounds over 110 nautical miles under “high hot” ambient conditions. Technology enablers for increased lift include 7,500-shaft-horsepower GE38-1B engines; a split torque transmission design that more efficiently distributes engine power to the main rotors; fourth-generation composite rotor blades for enhanced lift; and a composite airframe structure.

Flight test engineers will spend the coming months performing preliminary acceptance tests that include calibrating the GTV’s fuel system and attaching measuring devices at more than 1,300 test locations on the aircraft to record temperature, aerodynamic loads, pressure and vibrations. By mid 2013, the GTV will be attached to a specially built outdoor platform to hold the aircraft in place when its three engines are powered on – a process known as a “light-off.” Initial light-off test events will be performed without rotor blades, followed by more rigorous tests with the blades attached.

“This is an important point of transition for the CH-53K program,” said Col. Robert Pridgen, program manager for the heavy lift helicopters. “I am encouraged by the initial results of our testing at the component and subsystem level. Now we bring it all together. The GTV is our first dynamic system-level integration of those same components. We are looking forward to the sights and sounds these next heavy lifters will bring to the Marine Corps.”

Sikorsky is designing, building and testing the GTV and the four flight aircraft – designated Engineering Development Models – as part of a $3.5 billion System Development and Demonstration contract. Two additional ground test articles are undergoing airframe structural testing at Sikorsky’s main manufacturing plant in Stratford, Conn., as part of the same contract. The aircraft’s major fuselage sections are supplied by Aurora Flight Sciences, ITT Excelis, GKN Aerospace and Spirit Aerosystems.

The prototype assembly line is located at Sikorsky’s Florida Assembly and Flight Operations facility in West Palm Beach. Ground and flight testing will occur at the Developmental Flight Center on the same Florida campus.

 




All of this week's top headlines to your email every Friday.


 
 

 

Headlines March 30, 2015

News: Pentagon chief mulls easing military enlistment standards - Defense Secretary Ash Carter is considering easing some military enlistment standards as part of a broader set of initiatives to better attract and keep quality service members and civilians across the Defense Department.   Business: Lockheed pays $2 million to settle government overbilling charges - Lockheed Martin Corpor...
 
 

News Briefs March 30, 2015

Landing mishap for military chopper; two aboard unhurt Two Navy officers were unhurt after their helicopter rolled on its side while landing in the Florida Panhandle. The mishap happened the night of March 27 at a Navy landing site in Pensacola, Fla. The Pensacola News Journal reports a pilot instructor and a student were able...
 
 
Air Force photograph by TSgt. Matt Hecht

Laser-based aircraft countermeasure provides ‘unlimited rounds’ against MANPADS

Air Force photograph by TSgt. Matt Hecht A U.S. Army AH-64 Apache attack helicopter prepares to depart Bagram Air Field, Afghanistan, on Jan 7, 2012. The Apache conducts distributed operations, precision strikes against relocat...
 

 

Navy, Air Force advocate for modernizing combat aviation

Top Navy and Air Force officials today told the House Armed Services subcommittee on tactical air and land forces the president’s budget request for fiscal year 2016 will support modernizing combat aviation programs. Cavy Vice Adm. Paul A. Grosklags, principal military deputy to the assistant secretary of the Navy for research, development and acquisitions; Air...
 
 

Raytheon wins $46 million contract for South Korean Global Hawk ground stations

Raytheon has been awarded a contract valued at up to $45.7 million by Northrop Grumman Aerospace Systems for ground segments in support of four Global Hawk unmanned aircraft systems recently purchased by the Republic of Korea. Under this contract, Raytheon will deliver one building-based and one mobile ground segment to locations in South Korea. Work...
 
 
Air Force photograph by SrA. Victor J. Caputo

McConnell community marks B-29 rollout

Air Force photograph by SrA. Victor J. Caputo A B-29 Superfortress aircraft, named Doc after its nose art, sit on the flightline March 23, 2015, in Wichita, Kan. Doc will be one of two Superfortresses in the world capable of fl...
 




0 Comments


Be the first to comment!


Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>