Defense

January 16, 2013

A Hush Rush keeps the T-45 flying

The Naval Air Warfare Center Aircraft Divisionís Propulsion and Power test team keeps the T-45 Goshawk flying with the latest design of engine turbine blades. The T-45A aircraft is flown in intermediate and advanced Navy/Marine Corps pilot training for jet carrier aviation and tactical strike missions.

The Naval Air Warfare Center Aircraft Divisionís Propulsion and Power Test Methods and Facilities Division has a reputation for meeting challenges.

When a recent potential shortage of engines for the T-45A Goshawk trainer fleet threatened to impact the Navyís ability to train its strike aviators, the team was called into action. The T-45 is used for intermediate and advanced portions of the Navy and Marine Corps pilot training program.

Safety problems with the Low Pressure Turbine blades in the F405 engine that powers the T-45 forced a redesign of the old blades, which ended production early last year. But the redesign created a new dilemma.

The problem was that the newly redesigned blades were not yet fully qualified by U.S. Navy standards and could not be used immediately and the stockpile of old blades was forecast to be depleted by April,î explained Greg Muschlitz, lead engineer for the NAWCAD Propulsion Systems Evaluation Facility here.

In order for the redesigned blades to be fully qualified, a 1,000-hour Accelerated Simulated Mission Endurance Test would have to be completed. The test simulates the usage an engine would experience over its lifetime.

The Navy granted approval to begin implementing the redesigned blades into the fleet after completing only 100 hours of endurance testing. Thatís where the propulsion and power team faced their challenge.

The ASMET program was awarded to the Propulsion System Evaluation Facility on January 20,î Muschlitz said, ìleaving only two and a half months to prepare for what typically takes four to six months for just the set up prior to testing.

Testing of the F405 engine with the redesigned blades was conducted at the NAS Patuxent River, Md., Aircraft Test & Evaluation Facility, known as the ìHush House.

The test program was led by NAVAIRís Test Methods and Facilities Division with key members from the Support Equipment and Aircraft Launch and Recovery Group at Joint Base McGuire-Dix-Lakehurst, N.J., and the Patuxent River Outdoor Test site.

ìThe 100-hour deadline was met on April 11, allowing the new blades to be deployed and preventing an impact on T-45 availability, Muschlitz said.

The remainder of the 1,000-hour testing was performed throughout the summer and completed Oct. 23, several weeks ahead of schedule and several million dollars under budget, saving critical program funds.




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


 
 

 

Headlines April 18, 2014

Business: Lockheed to Lose 17 F-35s Under Automatic Pentagon Cuts - Pentagon will cut 17 of the 343 F-35 fighters it planned to buy from Lockheed Martin in fiscal 2016 through 2019 unless Congress repeals automatic budget cuts, according to a new Defense Department report. DOD looking for ways not to break MH-60R helo deal - The...
 
 

News Briefs April 18, 2013

U.S. military deaths in Afghanistan at 2,177 As of April 15, 2014, at least 2,177 members of the U.S. military had died in Afghanistan as a result of the U.S.-led invasion of Afghanistan in late 2001, according to an Associated Press count. At least 1,802 military service members have died in Afghanistan as a result...
 
 
LM-F35-hours

F-35 fleet surpasses 15,000 flying hours

The Lockheed Martin F-35 Lightning II fleet recently surpassed 15,000 flight hours, marking a major milestone for the program.  “Flying 15,000 hours itself demonstrates that the program is maturing, but what I think is e...
 

 
nasa-cassini

NASA Cassini images may reveal birth of new Saturn moon

NASA’s Cassini spacecraft has documented the formation of a small icy object within the rings of Saturn that may be a new moon, and may also provide clues to the formation of the planet’s known moons. Images taken w...
 
 

NASA completes LADEE mission with planned impact on Moon’s surface

Ground controllers at NASA’s Ames Research Center in Moffett Field, Calif., have confirmed that NASA’s Lunar Atmosphere and Dust Environment Explorer spacecraft impacted the surface of the moon, as planned, between 9:30 and 10:22 p.m., PDT, April 17. LADEE lacked fuel to maintain a long-term lunar orbit or continue science operations and was intentionally sent...
 
 
Photograph courtesy of NASA Ames/SETI Institute/JPL-Caltech

NASA’s Kepler telescope discovers first Earth-size planet in ‘habitable zone’

Photograph courtesy of NASA Ames/SETI Institute/JPL-Caltech Kepler-186f resides in the Kepler-186 system about 500 light-years from Earth in the constellation Cygnus. The system is also home to four inner planets, seen lined up...
 




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>