39
Aerodynamics
LFA_Nurburgring_U
Cd and Cl
“Cd” is an abbreviation that means “Coefficient of drag”. When referring to a car,
“air resistance” is proportional to this value multiplied by the frontal area (the surface
area that is seen when looking at the vehicle from directly in front). In other words,
the lower, more compact the vehicle, the lower the air resistance.
On the other hand, “Cl” is an abbreviation that means “Coefficient of lift”. If this value
is less than zero, downforce (the force that pushes the vehicle onto the road) is
being acquired.
Drag (D) and lift (L) can be calculated using the following formula:
( ρ : Air density V : Velocity (vehicle speed) A : Frontal area)
D (or L) = ½ x ρ x V
2 x Cd (or Cl) x A
With the Nürburgring Package, the Cl value has been enhanced and downforce
has been increased by adopting aero-parts, helping to pursue a feeling of reassur-
ing handling stability, even when driving at high speeds.
Due to the Nürburgring Package making changes based on circuit driving, mini-
mum ground clearance is lowered. When passing over an uneven surface, drive
extremely carefully to ensure the body do es not interfere with the road surface.
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48
LFA_Nurburgring_U
Major Dimensions & Vehicle Weights
Seating Capacity2
Minimum Ground Clearance 100 mm
Curb Weight 1,480 kg-1,590 kg*
Gross Vehicle Weight Rating 1,660 kg-1,755 kg*
Fuel Tank Capacity (Reference) 73 L (19.3 gal., 16.1 Imp. gal.)
*: Figures vary according to equipment and destination.
/ V S @ T Q F D @ & J O E E
N-046
*
Technical information
LFA_Nur_J_U_K_M_OM77029U.book 48 ページ ２０１２年１月１７日 火曜日 午前１０時１３分
