Get
to know your VMMV staff & vehicles
In this section we will introduce you to the people and armor
of the Virginia Museum of Military Vehicles. We will chat with
the VMMV staff, so that you can get to know the people who "keep
'em running" and work so hard behind the scenes. And also
provide a behind-the-scenes look into the history of individual
vehicles in the VMMV collection. In this, our tenth newsletter,
we look at one of the largest and newest vehicles in our collection-a
prototype/test bed of General Dynamics Land System's Expeditionary
Fighting Vehicle (EFV)
History
of the EFV Program
The newest addition to the VMMV family checks in at 75,000 lbs
combat loaded and measures nearly 35 feet long
.talk about
a healthy baby boy!!!! Except in this case the EFV can cruise
across the water at the 25+ knots, as fast as it can move on
land while carrying over a squad of fully equipped Marines.
The EFV
program started in the late 1980s when the USMC recognized a
need to conduct amphibious assaults from longer distances from
the beach and at greater speed than ever before. The early 90's
saw a variety of experiments to test various technologies and
hull forms. Finally, in 1996, General Dynamics Land Systems
was awarded the contract for development of a single AAAFV(P)
prototype (back then the EFV was known as the Advanced Amphibious
Assault Fighting Vehicle
..whew, I'm glad they shortened
the name!!!)
The rollout
ceremony for the AAAFV(P) occurred at Marine Corps Base, Quantico
on 23 June 1999. It spent the next several years in test and
evaluation, demonstrating a 30 knot over water speed and 44MPH
land speed. The program then entered System Development, changed
its name to EFV and continued rigorous hydrodynamic and weapons
testing. The EFV is scheduled to enter Full Scale production
in 2012 with 556 vehicles added to the fleet and will serve
proudly with the Marine Corps for many decades into the future.
The EFV will come in two flavors-EFVC and EFVP. The former is
the command variant and will have the same armor, ground and
water mobility as the EFVP. The EFVC will serve as a tactical
command post for the maneuver unit commanders at the battalion
and regimental level. The EFVP will conduct the signature mission
of the USMC since its inception
.amphibious operations
from over-the-horizon by transporting 17 combat equipped Marines
into the battlespace. After disembarking its load of Devil Dogs,
the EFVP can provide tracked firepower during the assault and
maneuver phase of the battle.
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Specifications
of the EFV
Now, a few statistics to WOW you and give an idea of the capabilities
of this massive armored beast:
Armament:
1 30xmm cannon with armor piercing and high explosive rounds,
7.62mm M240G coaxially mounted machine gun
Armor: Ceramic composite on an aluminum hull
Engine: MTU MT883 12 cylinder turbo charged engine developing
nearly 2,700 horsepower
Height: 3.28 meters
Weight: 35,000 kg
Length: 9.33 meters
Width: 3.66 meters
Fuel: Multi-fuel, 400 gallon capacity
Bow Flap: To trim and push the water away from the front of
the vehicle
Transom Flap: To allow for trim and buoyancy of the EFV
Chine Flaps: Designed to skim the surface of the water at high
speed
Transmission: Allison, 3 forward gears and two reverse gears.
Suspension System: 7 Hydro-pneumatic road wheel suspension arms;
3 constant pressure and 4 regular roadwheels each side
EFVP Crew: Vehicle commander, Gunner, Driver, Troop commander
for debarkation, command and control. 17 Fully loaded Marines
EFVC Crew and Staff: Vehicle commander, Assistant vehicle commander,
Driver. 10 stations for Company, Battalion level or Regimental
staff as needed
The History
of our EFV Testbed at VMMV
Our EFV started life in the 1993-1995 timeframe when it was
built by United Defense Limited Partnership as an Automotive
Test Rig at which time it was given the designator CAL-1 (seen
in white paint on the side of the vehicle in several of the
photos). Beginning in March 1995, CAL-1 was tested at Aberdeen
Proving Grounds (APG) to evaluate the suspension and land mobility
characteristics of the AAAFV in competition with an alternate
design submitted by General Dynamics. Separate test vehicles
were built to determine the handling characteristics on water.
After
the AAAFV/EFV contract was awarded to General Dynamics, CAL-1
continued work at APG and it moved down to Quantico Marine Corps
Base where road wheel testing was done along with component
durability evaluations. Even after several prototype EFV's were
built and the testing focus shifted to them, the CAL-1 vehicle
soldiered on like a good marine, testing in a reliable fashion
and doubling its planned service life.
The Survivability
Group at GDLS then took ownership of CAL-1, where it proved
a valuable asset in field testing efforts around the country.
CAL-1 performed quite well throughout the years in numerous
test events conducted by the Survivability Group where its last
field test was in the summer of 2005. After CAL-1 was found
to be outdated for any remaining test objectives, GDLS made
the decision to retire the vehicle. From retirement, CAL-1 was
donated by GDLS to VMMV in July 2006.
VMMV
would like to extend a sincere and hearty THANKS to Wayne Robinson,
Doug Ferrenz and all the management team at General Dynamics
that worked hard on making this donation happen. VMMV is proud
to receive the EFV prototype and it will always have a place
in our displays. SEMPER FI!!!
VMMV
Acronym
The lexicon of armored vehicles is filling with a bewildering
amount of acronyms. And at VMMV we have a few of our own. Here
we will have the VMMV word of the day so you may better understand
the conversations you might overhear at the museum.
PTO:
No, not the Pacific Theater of Operations in WWII, but Power
Take Off (PT0). If someone is talking about a PTO at VMMV it
usually means a secondary driveshaft mounted somewhere on an
engine to provide power for an auxiliary attachment. For example,
one of our volunteers might be running the tractor and using
the PTO to run a brush hog or large mowing attachment. The EFV
discussed above also has a PTO attached to the transmission
to provide thrust for its water jets.
Have
a great Summer from all the staff and volunteers of VMMV!
Mike
Panchyshyn-Editor
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