Defense

March 29, 2013

Navy designs mechanized rear-door assist for Mine Resistant Vehicles

Alan Canfield and Dan Broadstreet
Panama City, Fla.

The U.S. Marine Corps’ Mine Resistant Ambush Protection Buffalo vehicles were designed to protect Marines from Improvised Explosive Devices, and the Navy is improving MRAPs this March by upgrading them with a new Rear-Door Assist mechanism.

Naval Surface Warfare Center Panama City Division Buffalo Systems Deputy Project Engineer Steven Tate Carow said the Buffalo MRAP trucks currently do not have a power system to assist opening its rear door.

“Currently, the vehicle’s rear door requires a manual effort to open, and it weighs approximately 500 pounds. It is designed so one person can open it on flat ground. However, should there be an emergency situation like a rollover, if the vehicle has to park on uneven terrain, or even if the heat of the environment affects the door frame’s shape, the door can bind and become difficult to open,” said Carow.

The Buffalo program office provided specific requirements for the RDA system to meet. With a critical requirement to improve crew survivability, some specific requirements addressed included time-to-open, reliability and environmental protection.

NSWC PCD engineers designed the RDA solution to meet these requirements, while utilizing modified commercial-off-the-shelf hardware to reduce cost and production schedule.

The RDA system can be activated from two locations inside the vehicle and one location outside the vehicle. Multiple internal locations are provided to ensure the crew can open the door in the event of a roll-over. The external switch can be activated by first responders in the event the crew is incapacitated.

Carow said that the COTS cylinders for the RDA required only a minimal modification.

Another benefit to the team’s modified COTS solution Carow pointed out is the system is self powered.

“The system has its own battery, which is charged from the truck’s alternator, so even if the truck’s batteries become disabled, the system has enough stored energy to open the door many times,” said Carow said.

Carow explained that should the RDA battery fail for some reason, there is a backup to the normal battery-powered activation.

“If all else fails, we have a manual way to crank out the pump’s hydraulic cylinder. A Marine can pull out a handle, which fits into a slot in the integrated hydraulic cylinder, and he or she can then simply use this to jack the door open,” Carow said.

The Marine Corps Systems Command Assistant Program Manager for the Cat III Buffalo MRAP, Albert Shaw, said the collaboration with NSWC PCD was a win-win situation because the partnership is producing effective solutions that in many cases can be shared by several Department of Defense entities.

“This partnering for solutions is exemplary of the DOD acting as good stewards of taxpayer’s dollars,” said Shaw. “It’s American ingenuity at its best.”




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


 
 

 
Courtesy photograph

AEDC and AFRL collaborate to make advances in hypersonic technology

Air Force photograph by Mike Smith As part of the U.S.-German cooperative program known as Hypersonic International Flight Experimentation, an integrated aerodynamic and aerothermal test and analysis of a hypersonic cruise vehi...
 
 

Minuteman III rocket motor aging surveillance test completed at AEDC

Arnold Engineering Development Complex personnel completed testing of a Minuteman III Stage II motor in the Complex’s J-6 Large Rocket Test Facility for aging surveillance of the 48-year-old defense program. “The Stage II motor is part of the Minuteman III Aging and Surveillance test program to obtain motor performance data that is used to identify...
 
 
navair-triton

MQ-4C Tritons to arrive at Pax River this fall

  MQ-4C Triton test air vehicles at Northrop Grumman’s facility in Palmdale, Calif., will fly cross-country to Naval Air Station Patuxent River, Md., this fall. The MQ-4C completed a test flight Aug. 19 with updated ...
 

 
global-hawk2

Air Combat Command loans Global Hawk to GVCTF

Air Force photograph by Jennifer Romo The 412th Test Wing’s Global Vigilance Combined Test Force received a Global Hawk Block 40 Aug. 6, on loan from Air Combat Command. Tail number 2035, from Grand Forks AFB, N.D., is jo...
 
 
C130b

C-130 Hercules still going strong at 60

Air Force photograph The C-130H Hercules dons the new eight-blade NP-2000 propellers. The 418th Flight Test Squadron replaced the C-130H Hercules’ four-bladed propellers with the eight-bladed propellers in 2008 in support...
 
 
Army photograph by Sgt. Brandon Hubbard

Romania air base replaces Transit Center Manas

Army photograph by Sgt. Brandon Hubbard Oregon Army National Guard, 41st Infantry Brigade Combat Team Soldiers from load onto a C-17 Globemaster III Aug. 13, 2013, bound for Afghanistan from Mihail Kogalniceanu Air Base, Romani...
 




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>