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 July 29, 2015

News: Lockheed F-35s reliability found wanting in shipboard testing – The Marine Corps’ version of Lockheed Martin’s F-35 fighter demonstrated poor reliability in a 12-day exercise at sea, according to the U.S. military’s top testing officer.   Business: Rockwell Collins to upgrade Boeing comms system – Rockwell Collins will upgrade the low-frequency transmi...
 
 

News Briefs July 29, 2015

U.S. Navy examines health concerns near Guantanamo court A complaint lodged with the Pentagon has prompted the U.S. Navy to look into the possible presence of anything that may cause cancer in a section of the base at Guantanamo Bay, Cuba, a military spokeswoman said July 28. The Navy Marine Corps Public Health Center and...
 
 
Air Force photograph by SrA. Betty R. Chevalier

New interrogation system installed on AWACS, more in pipeline

Air Force photograph by SrA. Betty R. Chevalier An E-3 Sentry AWACS from Tinker Air Force Base, Okla., prepares to land May 16, 2015. AWACS have the capability to detect enemy as well as friendly aircraft at great distances usi...
 

 

Remains of Pearl Harbor victims raised for identification

The military July 27 exhumed more caskets containing the unidentified remains of USS Oklahoma crew members killed in the 1941 bombing of Pearl Harbor. The Defense POW/MIA Accounting Agency disinterred five coffins from four grave sites at the National Memorial Cemetery of the Pacific in Honolulu, where they have rested for decades. The work is...
 
 
Boeing photograph

Boeing Oklahoma City expansion grows facilities, business presence

Boeing photograph July 29, Boeing broke ground on a new laboratory facility in Oklahoma City. Mayor Mick Cornett, Commissioner Brian Maughan, President of Boeing Global Services and Support Leanne Caret, Oklahoma Governor Mary ...
 
 

NASA awards contract to support agency’s human spaceflight programs

NASA has selected Wyle Laboratories Inc., of El Segundo, Calif., to provide biomedical, medical and health services in support of all human spaceflight programs at the agency’s Johnson Space Center in Houston. The work supports ongoing research aboard the International Space Station and helps enable the journey to Mars. The Human Health and Performance contract...
 




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=""> <s> <strike> <strong>