(from Renault Press
Release) Renault F1 R29 Technical Description
Following the ING
Renault F1 Team’s improving performance in 2008, the new R29 is a
design philosophy aimed at extracting maximum performance from the
new aero regulations, slick
Bridgestone tyres, and KERS system, whilst further developing the
strong features of the R28.
With such radical rules coming into force, particularly with respect
to aerodynamics, the team placed
great emphasis on maximising the R29’s time in the wind tunnel, with
aero development already
underway by February 2008. CFD has also played a considerable role
in the design of the car and has
been particularly valuable in understanding the interaction of the
aerodynamic package as a whole.
There has been a concerted effort to save as much weight as possible
on the R29 to allow for the
introduction of the KERS system. As a result, the design team has
moved towards using alternative
materials and construction methods, such as the carbon-titanium
gearbox casing, increased use of
MMC aluminium and magnesium.
Renault started the
design work of the KERS system in 2007 in conjunction with
system consists of a motor-generator, which is connected to the
front of the engine (this charges the
battery on braking and releases the energy under acceleration), a
battery pack located in the chassis
and a KERS control unit.
The front end of the car
is dominated by the 2009 aero specification wide front wing which
has a driver
controlled adjustable incidence flap. This looks very different to
previous years being much closer to the ground and has much greater
influence on the air flow over the tyres due to its increased span.
Great attention has therefore been paid to the end plates which have
become much more critical devices than they have been in previous
years. The front end also has a more radical front suspension layout
with new geometry including inclined wishbones and higher monocoque
in order to maximise the new slick tyres and improve aerodynamic
The rear of the
monocoque under the bodywork has changed considerably with the
integration of the KERS system, which has taken a lot of effort to
package neatly for the minimum weight. The introduction of this new
technology has also influenced the car’s aero package with careful
consideration paid to ensure sufficient cooling.
The bodywork appendages,
such as winglets, flicks and chimneys have now largely disappeared
the 2009 aero regulations. The surfaces are therefore much simpler
and more streamlined, although the R29 still incorporates the
R28-type dorsal fin and flush exhaust exits seen on previous Renault
The 2009 rear wing is
narrower and higher and reverts back to the centrally-supported
design first introduced on the R26.
The four-race gearbox
has a brand new carbon-titanium main case to save weight, and an
gearshift system developed on the R28, which has also reduced weight
and improves performance.
The R29 therefore shares little in common with its predecessor with
much of the car designed from a
clean sheet of paper. This is particularly true of the aerodynamic
package where efforts in the past have concentrated on evolutionary
design. The technical team has risen to the challenges of this
shake-up in the rules and looks forward to seeing the results of
their efforts on the racetrack when the R29 makes its debut this
Renault F1 R29 Technical
Moulded carbon fibre and aluminium honeycomb composite monocoque,
manufactured by the Renault
F1 Team and designed for maximum strength with minimum weight. RS27
V8 engine installed as a
Carbon fibre top and bottom wishbones operate an inboard rocker via
a pushrod system. This is
connected to a torsion bar and damper units which are mounted inside
the front of the monocoque.
MMC aluminium uprights and machined magnesium wheels.
Carbon fibre top and bottom wishbones operating angled torsion bars
and transverse-mounted damper
units mounted on the top of the gearbox casing. MMC aluminium
uprights and machined magnesium
Seven-speed semi-automatic carbon-titanium gearbox with reverse
gear. “Quickshift” system in
operation to maximise speed of gearshifts.
Kevlar-reinforced rubber fuel cell by ATL.
Motor generator unit driving into front of engine with batteries as
an energy store.
Separate oil and water radiators located in the car's sidepods and
cooled using airflow from the car's
MES-Microsoft Standard Electronic Control Unit.
Magnetti-Marelli KERS control unit.
Carbon discs and pads (Hitco); calipers and mastercylinders by AP
Removable driver’s seat made of anatomically formed carbon
composite, with six-point harness seat
belt. Steering wheel integrates gear change and clutch paddles,
front flap adjuster and KERS energy
Car dimensions and
Front track 1450 mm
Rear track 1400 mm
Overall length 4800 mm
Overall height 950 mm
Overall width 1800 mm
Overall weight 605 kg, with driver, cameras and ballast
Capacity 2400 cc
Architecture 90° V8
Weight 95 kg
Max rpm 18,000 rpm
ECU MES SECU
KERS control Magnetti-Marelli
Battery Renault F1 Team
RS27 engines will be supplied to the ING Renault F1 Team and to Red
Racing for the 2009 season.