Bandini formula 3
Encyclopedia
The Bandini formula three is a racing car
model produced from 1954 until 1958 by Bandini Automobili
of Forlì
.
This type, produced at the same two-seater sports
was born in order to participate in the 750 cc engine capacity race-only category. This gave birth first to Formula Junior
and later Formula Three
.
The characteristics that make the Bandini F3 historically important are the unprecedented postponement of box differential and testing of disc brake
s on all four wheels. Disc brakes had only recently appeared on racing cars with the advent of the 1951 C-type
, which used them to great advantage at Le Mans
. The advantages of disc brakes were mainly limited solely to lower unsprung masses as the study of materials of seals of friction had not yet allow evolution that today poses this choice as a solution required the cars allocated to the races. They also helped avoid brake fade.
The box to postpone the transmission instead, a system also used in subsequent FJr.
it offered a double advantage: making rapid replacement of differential gears that determine the final drive
ratio, (allowing a rapid adaptation to the circuit) and, simultaneously, significantly lowering the driveshaft, which in turn governed the position of the driing seat. This allowed a lowering of center of mass
with the consequent improvement of handling.
The racing debut occurred on July 1954 to the third edition of "Luigi Arcangeli
Cup", raced on the Forlì circuit.
The same manufacturer Ilario Bandini
, classified in second place in the race reserved for "single seater up to 750 cc" valid for the Italian championship.
The chassis keeps the characteristics, materials and design, used for 750 torpedo
sports two-seater, but the size, necessarily lower a car, make it possible to further cut the weight that descends so only 16 kg (35 lb).
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The three Bandini formula used the same engines which powered the two-seater sports the same period: Bandini-Crosley first and second series, although the duration of lesser races for single-seater allowed the use of modifications and adjustments "pushes" as an increase in the compression ratio
or the use of alloy connecting rod
.
As the front, the tail and side panels of the engine compartment were easily dismantled. They have openings in gills of sharks in the two positions in relation to the role: the air fresh or sfoghi of warm air).
Their position reveals the use of different carburettors (horizontal or vertical).
Almost always present instead sfoghi large rectangular body on the car, between the engine compartment and the cockpit, where the body is deeply dug. To protect aerodynamics of the driver, only a small "slide" or a windshield that wraps the whole but for a few centimeters in height.
The tail, very short and at peak closed slightly above the rear axle at a point where goes also fin-rollbar, born immediately behind the driver.
Čar
Čar is a village in the municipality of Bujanovac, Serbia. According to the 2002 census, the town has a population of 296 people.-References:...
model produced from 1954 until 1958 by Bandini Automobili
Bandini Automobili
Bandini Automobili was an Italian automobile manufacturer operating between 1946 and 1992. It was named after its founder Ilario Bandini.Founded in 1946 in Bandini’s hometown Forlì, the first Bandini used a modified Fiat 1100 engine, the body was made from hand hammered aluminum and the chassis...
of Forlì
Forlì
Forlì is a comune and city in Emilia-Romagna, Italy, and is the capital of the province of Forlì-Cesena. The city is situated along the Via Emilia, to the right of the Montone river, and is an important agricultural centre...
.
Bandini 750 sport siluro
The Bandini 750 sport siluro is a racing car model, produced from 1950 to 1956 by the Italian company Bandini Cars.Born in 1950, this new type marked the consecration of Bandini as an international challenger in the smaller classes...
was born in order to participate in the 750 cc engine capacity race-only category. This gave birth first to Formula Junior
Formula Junior
Formula Junior is an open wheel formula racing class first adopted in October 1958 by the CSI . The class was intended to provide an entry level class where you could use inexpensive mechanical components from ordinary automobiles...
and later Formula Three
Formula Three
Formula Three, also called Formula 3 or F3, is a class of open-wheel formula racing. The various championships held in Europe, Australia, South America and Asia form an important step for many prospective Formula One drivers...
.
The characteristics that make the Bandini F3 historically important are the unprecedented postponement of box differential and testing of disc brake
Disc brake
The disc brake or disk brake is a device for slowing or stopping the rotation of a wheel while it is in motion.A brake disc is usually made of cast iron, but may in some cases be made of composites such as reinforced carbon–carbon or ceramic matrix composites. This is connected to the wheel and/or...
s on all four wheels. Disc brakes had only recently appeared on racing cars with the advent of the 1951 C-type
Jaguar C-Type
The Jaguar C-Type is a racing sports car built by Jaguar and sold from 1951 to 1953. The "C" designation stood for "competition"....
, which used them to great advantage at Le Mans
24 Hours of Le Mans
The 24 Hours of Le Mans is the world's oldest sports car race in endurance racing, held annually since near the town of Le Mans, France. Commonly known as the Grand Prix of Endurance and Efficiency, race teams have to balance speed against the cars' ability to run for 24 hours without sustaining...
. The advantages of disc brakes were mainly limited solely to lower unsprung masses as the study of materials of seals of friction had not yet allow evolution that today poses this choice as a solution required the cars allocated to the races. They also helped avoid brake fade.
Bandini formula junior
The Bandini formula junior is a racing car model produced from 1959 until 1962 by Bandini Cars in Forlì.-Overview:The formula was a junior category promotional designed Europe and United States to start young drivers racing career, allowing a deserved better visibility beyond national...
it offered a double advantage: making rapid replacement of differential gears that determine the final drive
Gear ratio
The gear ratio of a gear train is the ratio of the angular velocity of the input gear to the angular velocity of the output gear, also known as the speed ratio of the gear train. The gear ratio can be computed directly from the numbers of teeth of the various gears that engage to form the gear...
ratio, (allowing a rapid adaptation to the circuit) and, simultaneously, significantly lowering the driveshaft, which in turn governed the position of the driing seat. This allowed a lowering of center of mass
Center of mass
In physics, the center of mass or barycenter of a system is the average location of all of its mass. In the case of a rigid body, the position of the center of mass is fixed in relation to the body...
with the consequent improvement of handling.
The racing debut occurred on July 1954 to the third edition of "Luigi Arcangeli
Luigi Arcangeli
Luigi Arcangeli was an Italian motorcycle racer and race car driver, his first notable appearance was a win in 1928 at the Circuito di Senigallia with a 2 litre Bugatti. After Bugatti he drove...
Cup", raced on the Forlì circuit.
Ilario Bandini
Ilario Bandini was an Italian businessman, racing driver, and racing car builder.-Early years:Bandini was born in Villa Rovere, today part of the administrative region of Forlì in Romagna. Upon leaving elementary school, he apprenticed as a mechanic and turner in nearby Forli...
, classified in second place in the race reserved for "single seater up to 750 cc" valid for the Italian championship.
The chassis
Bandini 750 sport siluro
The Bandini 750 sport siluro is a racing car model, produced from 1950 to 1956 by the Italian company Bandini Cars.Born in 1950, this new type marked the consecration of Bandini as an international challenger in the smaller classes...
sports two-seater, but the size, necessarily lower a car, make it possible to further cut the weight that descends so only 16 kg (35 lb).
- Structure and materialMaterialMaterial is anything made of matter, constituted of one or more substances. Wood, cement, hydrogen, air and water are all examples of materials. Sometimes the term "material" is used more narrowly to refer to substances or components with certain physical properties that are used as inputs to...
: frame of elliptical section tubes, special steelSteelSteel is an alloy that consists mostly of iron and has a carbon content between 0.2% and 2.1% by weight, depending on the grade. Carbon is the most common alloying material for iron, but various other alloying elements are used, such as manganese, chromium, vanadium, and tungsten...
aeronautics derivation; patent No. 499843 - Suspension:
- Front: Independent, triangles overlapping with shockShock absorberA shock absorber is a mechanical device designed to smooth out or damp shock impulse, and dissipate kinetic energy. It is a type of dashpot.-Nomenclature:...
hydraulic telescopic tilted and springsSpring (device)A spring is an elastic object used to store mechanical energy. Springs are usually made out of spring steel. Small springs can be wound from pre-hardened stock, while larger ones are made from annealed steel and hardened after fabrication...
cylindrical helical coaxial; bar Account - Rear: a bridge with two rigid leaf spring semiellittiche longitudinal and shockShock absorberA shock absorber is a mechanical device designed to smooth out or damp shock impulse, and dissipate kinetic energy. It is a type of dashpot.-Nomenclature:...
hydraulic vertical telescopic
- Front: Independent, triangles overlapping with shock
- Braking systemBrakeA brake is a mechanical device which inhibits motion. Its opposite component is a clutch. The rest of this article is dedicated to various types of vehicular brakes....
:- Service: hydraulics, drum front and rear, as an alternative hydraulic disc on four wheels
- Parking: not found
- SteeringSteeringSteering is the term applied to the collection of components, linkages, etc. which will allow a vessel or vehicle to follow the desired course...
: a worm - Guide: single, central location
- Wheels: Ray Borrani
- Fuel tankFuel tankA fuel tank is safe container for flammable fluids. Though any storage tank for fuel may be so called, the term is typically applied to part of an engine system in which the fuel is stored and propelled or released into an engine...
: 25 l (7 US gal; 5 imp gal) - TransmissionTransmission (mechanics)A machine consists of a power source and a power transmission system, which provides controlled application of the power. Merriam-Webster defines transmission as: an assembly of parts including the speed-changing gears and the propeller shaft by which the power is transmitted from an engine to a...
: rear transmission with half shfat and central differential positioned reversed and box with quick change of relations (6 reports available) - WeightWeightIn science and engineering, the weight of an object is the force on the object due to gravity. Its magnitude , often denoted by an italic letter W, is the product of the mass m of the object and the magnitude of the local gravitational acceleration g; thus:...
: bare chassis 16 kg (35 lb) - WeightWeightIn science and engineering, the weight of an object is the force on the object due to gravity. Its magnitude , often denoted by an italic letter W, is the product of the mass m of the object and the magnitude of the local gravitational acceleration g; thus:...
total: 300 kg (661 lb)
The engine
Compression ratio
The 'compression ratio' of an internal-combustion engine or external combustion engine is a value that represents the ratio of the volume of its combustion chamber from its largest capacity to its smallest capacity...
or the use of alloy connecting rod
Connecting rod
In a reciprocating piston engine, the connecting rod or conrod connects the piston to the crank or crankshaft. Together with the crank, they form a simple mechanism that converts linear motion into rotating motion....
.
- Positioning: forward longitudinal, 4-cylinder in-line
- Materials and particularity: base 5 media bench and sump of aluminiumAluminiumAluminium or aluminum is a silvery white member of the boron group of chemical elements. It has the symbol Al, and its atomic number is 13. It is not soluble in water under normal circumstances....
of 5 litres capacity, aluminium DOHC headCylinder headIn an internal combustion engine, the cylinder head sits above the cylinders on top of the cylinder block. It closes in the top of the cylinder, forming the combustion chamber. This joint is sealed by a head gasket...
with 8 valves inclined, cylinders dismantled in cast iron block. - Bore: 63.5 mm (2.5 in)
- Stroke: 59 mm (2.3 in)
- DisplacementEngine displacementEngine displacement is the volume swept by all the pistons inside the cylinders of an internal combustion engine in a single movement from top dead centre to bottom dead centre . It is commonly specified in cubic centimeters , litres , or cubic inches...
: 747 cc - Compression ratioCompression ratioThe 'compression ratio' of an internal-combustion engine or external combustion engine is a value that represents the ratio of the volume of its combustion chamber from its largest capacity to its smallest capacity...
: 11.2:1 - PowerPower (physics)In physics, power is the rate at which energy is transferred, used, or transformed. For example, the rate at which a light bulb transforms electrical energy into heat and light is measured in watts—the more wattage, the more power, or equivalently the more electrical energy is used per unit...
: 2 twin-choke (two-barrel) Weber carburetors double body 35DCO3 horizontal or vertical - PowerPower (physics)In physics, power is the rate at which energy is transferred, used, or transformed. For example, the rate at which a light bulb transforms electrical energy into heat and light is measured in watts—the more wattage, the more power, or equivalently the more electrical energy is used per unit...
: 66 to 73 hpHorsepowerHorsepower is the name of several units of measurement of power. The most common definitions equal between 735.5 and 750 watts.Horsepower was originally defined to compare the output of steam engines with the power of draft horses in continuous operation. The unit was widely adopted to measure the...
9000 rpm - Lubricate: Carter with wet gear pump and filter external wire mesh
- Cooling: forced liquid with centrifugal pump controlled by pulley and belt, cooler on the front
- Gearbox and clutch: 4 speed+ RG, clutch single dry disc
- Ignition and electrical equipment: coil and distributorDistributorA distributor is a device in the ignition system of an internal combustion engine that routes high voltage from the ignition coil to the spark plugs in the correct firing order. The first reliable battery operated ignition was developed by Dayton Engineering Laboratories Co. and introduced in the...
on the head, battery 12 VVoltThe volt is the SI derived unit for electric potential, electric potential difference, and electromotive force. The volt is named in honor of the Italian physicist Alessandro Volta , who invented the voltaic pile, possibly the first chemical battery.- Definition :A single volt is defined as the...
and generatorElectrical generatorIn electricity generation, an electric generator is a device that converts mechanical energy to electrical energy. A generator forces electric charge to flow through an external electrical circuit. It is analogous to a water pump, which causes water to flow...
The body
The alloy body, made the Bandini were of two types; different especially on the front: a very similar to torpedo two-seater, with grid elements horizontal and vertical elliptical high and very rounded and the other lower and spigolosa with the air-intake front almost a semicircle. Both solutions were not welded to the body car but screwed to it, so as to enable the interchangeability as well as add convenience in the event of operations in the engine compartment or contacts to tender.As the front, the tail and side panels of the engine compartment were easily dismantled. They have openings in gills of sharks in the two positions in relation to the role: the air fresh or sfoghi of warm air).
Their position reveals the use of different carburettors (horizontal or vertical).
Almost always present instead sfoghi large rectangular body on the car, between the engine compartment and the cockpit, where the body is deeply dug. To protect aerodynamics of the driver, only a small "slide" or a windshield that wraps the whole but for a few centimeters in height.
The tail, very short and at peak closed slightly above the rear axle at a point where goes also fin-rollbar, born immediately behind the driver.
See also
- Ilario BandiniIlario BandiniIlario Bandini was an Italian businessman, racing driver, and racing car builder.-Early years:Bandini was born in Villa Rovere, today part of the administrative region of Forlì in Romagna. Upon leaving elementary school, he apprenticed as a mechanic and turner in nearby Forli...
- Bandini CarsBandini AutomobiliBandini Automobili was an Italian automobile manufacturer operating between 1946 and 1992. It was named after its founder Ilario Bandini.Founded in 1946 in Bandini’s hometown Forlì, the first Bandini used a modified Fiat 1100 engine, the body was made from hand hammered aluminum and the chassis...