Requirement\4 Mechanical parts

1.4 Mechanical parts
1.4.1 Clutch and transmission
1.4.1.1 The vehicle must have “idling capabilities” ,i.e. the vehicle must remain stationary with the engine running.
1.4.2 Turning radius and steering
1.4.2.1 Vehicle steering must be achieved by one system operated with both hands using a turning motion.
1.4.2.1.1 The steering must be precise, with no excessive play.
1.4.2.2 Steering must be achieved using a steering wheel or sections of a wheel.
1.4.2.2.1 Steering bars, tillers, joysticks, indirect or electric systems are not permitted.
1.4.2.3 Turning radius: Maximum 6 m.
1.4.2.4 Driver skills, turning radius and steering precision will be tested.
1.4.2.4.1 In particular, inspectors will verify that steering is precise, with no excessive play.
1.4.3 Wheels
1.4.3.1 Rim diameter.
1.4.3.1.1 Minimum rim diameter: 13 inches (33.02 cm).
1.4.3.1.2 Maximum rim diameter: 17 inches (43.18 cm).
1.4.3.2 The wheels located inside the vehicle body must be made inaccessible to the Driver by a bulkhead.
1.4.3.2.1 Any handling or manipulation of the wheels is forbidden from the moment the vehicle arrives at the starting line until it crosses the finish line.
1.4.4 Tires
1.4.4.1 The choice of tires is free as long as they are fitted on the type and sizes of rims recommended by their manufacturers.
1.4.4.1.1 Minimum tread: 1.6 mm.
1.4.4.2 The width of the tires/rim assembly is measured with the tire fitted on its rim at its rated pressure. Caution: The manufacturer’s size indications should not be taken as measure, as the width of the rim directly impacts the width of the rim/tire assembly.
1.4.4.2.1 Minimum width of rim/tires assembly: 80 mm (measured from sidewall to sidewall).
1.4.5 Braking
1.4.5.1 The vehicle must be equipped with a four-disc hydraulic brake system.
1.4.5.2 The system must be equipped with a brake pedal.
1.4.5.2.1 Minimum surface area of brake pedal: 25 cm2.
1.4.5.3 The brakes must operate independently on the front and rear axles or in an X pattern (i.e. right front wheel with left rear wheel, and left front wheel with right rear wheel).
1.4.5.4 A single master cylinder may be used, provide that it has a dual circuit (two pistons and dual tank).
1.4.5.5 The vehicle must remain immobile when it is placed on a 20 % incline with the main brake in place.
1.4.5.5.1 Race Inspectors may check the brakes again just prior to start.
1.4.5.6 Wet weather capability is mandatory (see Article 5.6)
1.4.6 Wet weather running (mech)
1.4.6.1 Must be able to race during conditions of light rain/drizzle.
1.4.6.2 The vehicle must be adequately ventilated to prevent driver’s compartment from fogging.
1.4.6.3 Windscreen wiper(s)
1.4.6.3.1 The vehicles must be equipped with an effective electric windscreen wiper(s).
1.4.6.3.2 (mech) The operation of the wiper assembly must be activated by an independent switch easily accessible to the driver.
1.4.6.3.3 (mech) The wiper operation must provide the driver a clear view.
1.4.6.4 The vehicle’s brake effectiveness may be re-inspected before and/or after any run.
1.4.6.5 The vehicle’s electrical system must be suitable for wet weather conditions (e.g. will not malfunction during wet conditions).
1.4.7 Requirements specified by team
1.4.7.1 Brake circuit
1.4.7.1.1 Braking force 20%slope
1.4.7.1.1.1 Breaking force must be <200N.
1.4.7.1.1.2 Breaking force should be <100N
1.4.7.1.2 Mean time to failure
1.4.7.1.2.1 Mean time must be >6h.
1.4.7.1.2.2 Mean time should be >100h.
1.4.7.1.3 Weight
1.4.7.1.3.1 Weight must be <3.5kg
1.4.7.1.3.2 Weight should be <2kg
1.4.7.2 Steering
1.4.7.2.1 Force required from driver
1.4.7.2.2 Play in steering
1.4.7.2.3 Time to failure
1.4.7.2.3.1 Time to failure must be >6h.
1.4.7.2.3.2 Time to failure should be >100h.
1.4.7.2.4 Turning radius
1.4.7.2.4.1 Turning radius should be <5m.
1.4.7.2.4.2 Turning radius must be <6m
1.4.7.2.5 steering weight
1.4.7.2.5.1 Weight must be <3kg.
1.4.7.2.5.2 Weight should be <2kg.
1.4.7.3 Front suspension
1.4.7.4 Rear suspension
1.4.7.5 Wheel
1.4.7.5.1 Outer diameter
1.4.7.5.1.1 Maximum radius of 17' (43.2cm)
1.4.7.5.1.2 Minimum radius of 13' (33cm).
1.4.7.5.2 Cross-section with tire
1.4.7.5.2.1 Must be >80mm.
1.4.7.5.3 Wheels´ weight
1.4.7.5.3.1 Weight must be <2.5kg
1.4.7.5.3.2 Weight should be <1.5kg
1.4.7.5.4 Withstand angular torque caused by deceleration of rotating mass
1.4.7.5.5 Withstand lateral force caused by cornering
1.4.7.5.6 Withstand vertical force caused by weight of the car plus driver and g-forces
1.4.7.6 Engine wheel
1.4.7.6.1 Easy to mount and dismount the engine from rim
1.4.7.6.2 Lightweight
1.4.7.6.3 Possible to adjust and balance engine
1.4.7.6.4 Safe,reliable and durable solution