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In contrast to the MR layout, the center of mass of the engine is between the rear axle and the rear bumper. Although common in electric cars, [5] and in transit buses and coaches due to the elimination of the drive shaft with low-floor bus, this layout has become increasingly rare in fossil-fuelled passenger cars. The Porsche 911 is notable ...
In contrast to the RMR layout, the center of mass of the engine is between the rear axle and the rear bumper. Although very common in transit buses and coaches due to the elimination of the drive shaft with low-floor buses, this layout has become increasingly rare [specify] in passenger cars. [1]
RMR layout; the engine is located in front of the rear axle. Rear Mid-engine transversely-mounted / Rear-wheel drive. In automotive design, an RMR, or rear mid-engine, rear-wheel-drive layout is one in which the rear wheels are driven by an engine placed with its center of gravity in front of the rear axle, and thus right behind the passenger compartment.
where is the force on the front tires, is the force on the rear tires, is the wheelbase, is the distance from the center of mass (CM) to the rear wheels, is the distance from the center of mass to the front wheels (+ = ), is the mass of the vehicle, and is the gravity constant. So, for example, when a truck is loaded, its center of gravity ...
An axlebox, also known as a journal box in North America, is the mechanical subassembly on each end of the axles under a railway wagon, coach or locomotive; it contains bearings and thus transfers the wagon, coach or locomotive weight to the wheels and rails; the bearing design is typically oil-bathed plain bearings on older rolling stock, or roller bearings on newer rolling stock.
A front mid-engine, rear-wheel-drive layout (FMR) places the engine in the front half of the vehicle but behind the front axle, which likewise drives the rear wheels via a driveshaft. Shifting the engine's center of mass rearward aids in front/rear weight distribution and reduces the moment of inertia , both of which improve a vehicle's handling .
[citation needed] A unique example of character use is Texas, which skips all vowels along with the letter Q on passenger plates. In amateur radio license plate issues, some states use a unique slashed zero character in place of the standard "0" character due to lack of spacing between letters and numbers. Iowa is a unique example in the use of ...
The largest drawback of mid-engine cars is restricted rear or front (in the case of front-mid layouts) passenger space; consequently, most mid-engine vehicles are two-seat vehicles. The engine in effect pushes the rear passenger seats forward towards the front axle (if the engine is behind the driver). Exceptions typically involve larger ...