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occupants and systems in the vehicles.
The glass phenolic prepreg material is
fairly new to ACG’s ballistics product
range, having been incorporated into their
advanced composites product portfolio
following the acquisition of George Cole
Technologies Ltd (Primco) by ACG’s parent
company, Umeco plc, at the end of 2007.
It is understood that the Ridgback will
offer a level of protection similar to that
provided by its big brother, the Mastiff,
but in a smaller vehicle.
Ridgback and Mastiff vehicles, along with
the Viking, Bulldog, Warrior, Vector, and
Snatch (all currently being used on
operations) are variously suited to
different threats, terrains and tempos of
operation. Together, they give UK
commanders the ability to choose the
best vehicles for each situation.
Page 5
ACG Shares Performance and Customisation Award for MTM®57
Prepreg Applications on Corvette ZR1
At the 2008 SPE Automotive Innovation
Awards, ACG shared an important
‘Finalist Award’ for the application, by
Plasan Carbon Composites Inc (GM’s
preferred composite components
supplier), of ACG’s MTM®57/CF3238
carbon fibre prepreg material for the
manufacture of the carbon fibre
composite roof assembly on General
Motors’ 2009 Corvette ZR1.
The SPE award described the roof
application as, “A proprietary, UVstabilized
and colour corrected clear coat
that was developed to prevent yellowing
of exposed-weave carbon fibre composite
in this highly visible, ‘Class A’ roof
assembly with exacting aesthetic
requirements.” It continues, “Replacing
an earlier thermoplastic roof assembly,
the bonded advanced composite version
is lighter (lowering the vehicle’s center of
gravity), has lower coefficient of linear
thermal expansion (CLTE), and is more
robust, providing improved rollover
protection.”
Not limited to just the roof assembly, the
ZR1 combines the latest automotive
technology with even more ACG carbon
composite prepreg material applications,
which further reduce vehicle mass and
offer improved fuel economy and
reduced emissions.
Other significant parts on the limited
edition ZR1 that use ACG’s MTM57
prepregs include the front air splitter,
which works in conjunction with the rear
spoiler to form a superior aerodynamic
pack that provides enhanced stability at
high speeds.
Like the composite roof assembly, the
splitter features the special clear coat
that resists weathering and destructive
UV rays, whist also imparting that
essential, excellent, aesthetically
pleasing, clear cosmetic carbon finish.
Combine the aerodynamic pack of front
fascia splitter and rocker mouldings with
the ZR1’s award-winning lightweight
roof construction and the ZR1 gamely
sprints to 205mph on the test track.
ACG’s MTM57 component prepreg is
based on a 120°C (248°F) curing epoxy
resin matrix that exhibits excellent
toughness and can, after a suitable cure,
be used at temperatures up to 90°C
(194°F).
Whilst MTM57 offers versatile processing
options such as autoclave, vacuum bag or
press moulding, Plasan employs the
latter to obtain that essential cosmetic,
aesthetically pleasing surface finish and
maximum component throughput.
The launch of the 2009 ZR1 comes two
decades after Corvette and Lotus
originally joined forces to fashion this
ferocious machine.
With a powerful engine (405 horses),
dynamic active suspension and
streamlined form, the original ZR1
formed a new standard in the mega
performance sector, leaving the
competition in its wake.
Topped with a clear hood window to
show off its hardware, with a body style
created for pure aerodynamic
performance, and lustrous, dark and
aesthetically pleasing cosmetic carbon
components, the ZR1 Vette will turn
every head on the block.
Copyright: ACG
Page 6 Page 7
A Profile on Advanced Composites Engineering - ACG’s Celebrated Prepreg Proving Ground and Customer Focussed Manufacturing Facility
UK (Heanor) based Advanced Composite
Engineering (ACE) started life as
Advanced Composites Technology (ACT)
way back in 1975 when it manufactured
parts for Formula One and motor sport,
and has operated under other guises in
the intervening period. The division’s
true claim to fame in those early days
was its success in the design and
manufacture of the first monocoque
　
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