Anzani

Alessandro Anzani on a W-3 Motorfahrrad in 1906.

Replica of an Anzani 3W Motor.

Anzani Y type aero engine in Deperdussin

A 6 cylinder radial Anzani 45HP Aero engine.

The Anzani was an engine manufacturer founded by the Italian Alessandro Anzani, which produced proprietary engines for aircraft, cars, boats, and motorcycles in factories in Britain, France and Italy.

Overview

From his native Italy, Anzani moved to France where he became involved in cycle racing. He moved on to motor cycles and designed and built a record breaking lightweight engine. In 1907 he set up a small workshop in Paris with three staff and while they were building his engines he designed a hydrofoil powered by one of his engines and propellers.

Aircraft

He supplied one of his engines to Enrico Forlanini and developed it further into a three-cylinder, air cooled, radial engine ideal for the new aeroplanes. One of the early engines, the 25hp Anzani 3W, was supplied to Louis Blériot who used it or his successful crossing of the English Channel in 1909.

Types

Anzani Fan (W-3) 3 cylinders in W-configuration: 3 variants of about 25 hp, 35 hp and 45 hp.

Anzani Y-type radial with 3 cylinders at 120^o

Anzani 4-cylinder water-cooled V-4, 35 hp at 1,600 rpm

Anzani 6 6 cylinder two row radial, about 45 hp at 1,300 rpm

Anzani 10 10 cylinder two row radial, about 100 hp

Anzani 20 20 cylinder four row radial, about 200 hp

New factories

Demand for the engines continued to grow and the original Paris workshop was replaced by a new factory at Courbevoie, Paris, and one in London was also added as well as licenced production by other makers. Another factory at Monza, Italy was added in 1914.

Motor racing

In 1920 Anzani turned to motor racing and built a small car with one of his 750 cc two cylinder engines, air cooled of course, which won several competitions. They also made a 1098cc cyclecar between 1923 and 1924.

Anzani 1925 Pacing bike 2000 cc 2 cyl ohv

Source

Motor pace racing was glamorous but dangerous. Falls were common, largely because bicycle tires tended to burst at speed. The riders wore neither helmets nor gloves. They depended on fast reflexes, the rude health of youth, and luck. Despite having all three, Bobby Walthour collected an impressive (or dismaying) inventory of injuries over his career: 28 fractures of the right collarbone, 18 of the left, 32 broken ribs, and 60 stitches to his face and head. Once, according to family history, he was given up for dead in Paris and taken to a morgue, where he regained consciousness on the slab.

Speeds rose and accidents became frequent. The American, Harry Elkes, died of his injuries from a crash in front of 10,000 spectators at Boston, Massachusetts, USA. His rear tire exploded at 100kmh and he was thrown under another rider's pacing machine which "crushed the prostrate man in a dreadful manner.". George Lander, of Chicago, USA, said "Only the clumsy get themselves killed" before starting a race at the Parc des Princes in Paris.

Leander was thrown five meters into the air after 80km, fell to the track, bounced into the seating and died 36 hours later. A crash in Berlin on 18 July 1909 killed nine when a motorcycle went into the stands and exploded. The biggest machines were built by the pacers, using parts from other motorcycles, with engines as large as 2,000cc / 125 cu.inch.

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  Anzani 1925 Pacing bike 2000 cc 2 cyl ohv

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The pacers wore leathers, goggles and helmets but many riders wore a flat cap. The world governing body, the Union Cyclist Internationale set regulations for pacing motorcycles in 1920. Until then standards had been set by the police, or by the track promoters. World championships were held annually, except during wars, for 100 years, often separately for amateurs and professionals. The motorcycle for motor-pacing has a roller on a frame at the rear to create a uniform distance to the cyclist. Some riders objected when the UCI insisted on them in 1920.

The pacer stands or sits upright to offer a maximum windbreak, and the handlebars are extended to facilitate the stance, in a standardized leather suit that allows for the same slipstream effect for any rider. Speeds of 100 km/h (62 mph) can be reached; the average is between 60–70 km/h. The bicycles are steel, sturdy and have a smaller front wheel to let the stayer bend forward into the slipstream. From the end of the 19th century, this type of motorcycle was also used in the cycling world in record-breaking attempts for speed. It was based on the following principle: The special designed motorcycle equipped with a large rear extension kept a bicyclist out of the wind and “slip-streamed” the bicycle up to full speed, so that the cyclist could reach maximum speed using leg power alone. In those days, this type of record was extremely popular. The record of 100 km/h, 62 mph, by bicycle was beaten on 15 September 1909 by a bicycle following a motorcycle equipped with a 3-cylinder Anzani engine.

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  1928 Anzani 2400 cc IOE V-twin pacing machine

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On 1 November 1925, Jean Brunier, a French cyclist, set the bar even higher with his record speed of 120.958 km/h, 75.598 mph, at the Linas-Montlhéry motor-racing track, using a motorcycle driven by Léon Vauthier. Léon Vauthier, as well as driving motorcycles for these kinds of record-breaking attempts, also built his own training motorcycles. The motorcycle shown here is most likely one of the machines designed by Léon Vauthier himself, the frame of which was specially made in the early 1920s to take part in this type of sport. The whole frame was specially designed to create a large slipstream for a racing bicycle and its rider. It is equipped with a powerful Anzani V twin-cylinder engine. It had a 2 liter/125 cubic inch Over Head Valve engine with open exhaust. Its magneto is positioned in the center of the V; the engine is fitted with a "drip feed" oil pump and has extra lubrication at the front of the crankcase, which is controlled by a hand oil pump in the oil tank.

This rare Léon Vauthier creation also comes with a stunning copper cylindrical fuel/oil tank. For many years it was part of the collection at the Musée de l'Automobiliste in Mougins France, before it joined a large private French collection. It was exhibited alongside objects which reflected the history of pioneers in aviation, symbolizing the glorious history of the magnificent Anzani engines in this field.

Sale of factories

On his 50th birthday in 1927 Anzani decided to sell his factories in Paris and London keeping only the Monza works for sentimental reasons, and managed by Natale Baccanti.

1958 Anzani Astra made in the UK Source

British Anzani

In the UK, British Anzani outsourced the manufacture of their engines to Coventry Ordnance Works Ltd. In the 1920s it was refinanced as British Vulpine Engine Company and then again as British Anzani Engineering Company concentrating on small engines and car and motorcycle powerplants. They supplied AC Cars with the 1496cc side-valve four cylinder (that would become AC's famous 2-litre motor), Frazer-Nash with an 1496cc ohv engine, Morgan Motor Company with a V-twin, and Squire with the R1 twin cam engine. Their most well known products came to be in motorcycles, lawnmowers and outboard engines. Cotton and Greeves motorcycles used Anzani motors.

In later years the company diversified. In the years after World War Two the company's main product was the 'Iron Horse'- a two-wheeled pedestrian-controlled ploughing engine and light tractor. In time, four-wheeled versions with the driver sitting on the front of the vehicle were produced. The company became the British Anzani Group, and was trading under that name when it went into liquidation in 1980.

External links

• Alessandro Anzani and the founding of the company
• A comprehensive history of British Anzani
• Commercial site

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