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.


 
 

 
Boeing photograph

CH-46 ‘Phrog’ makes its last hop

Boeing photograph The CH-46 Sea Knight helicopter commonly known as the “Phrog,” is set to retire and to be flown one last time by Reserve Marine Medium Helicopter Squadron (HMM) 774 on Aug. 1. The CH-46 Sea Knight is a med...
 
 

Advanced Extremely High Frequency system achieves IOC

Gen. John Hyten, the Air Force Space Command commander, declared initial operational capability for the Advanced Extremely High Frequency system July 28. The significant achievement reflects collaboration between numerous organizations, including Headquarters Air Force Space Command, the Space and Missile Systems Center, Army, Navy and the developers, Lockheed Martin and Northrup Grumman. The s...
 
 
Navy photograph

Surface-to-surface missile test for LCS successful

Navy photograph Three missiles from a ripple fire response strike their moving targets during an engineering development test of modified Longbow Hellfire missiles. The missile system, designated the Surface-to-Surface Missile ...
 

 
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...
 
 
Army photograph by SFC Walter E. van Ochten

U.S., Ukraine, Romania, Bulgaria train together at Rapid Trident 2015

Army photograph by SFC Walter E. van Ochten U.S. soldiers, of the 3rd Platoon, 615th Military Police Company, 709th Military Police Battalion, react as they conduct reacting to contact training as part of their situational trai...
 
 
Army photograph by Sgt. Juana M. Nesbitt

Estonian, US forces receive new jump wings

Army photograph by Sgt. Juana M. Nesbitt Pvt. Kalmer Simohov, of Parnu, a volunteer with the Estonian Defense League, receives his U.S. Army Airborne wings following the joint airborne operations exercise at a drop zone in Nurm...
 




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>