1932 Alfa Romeo P3 Monoposto (Tipo B)

Alfa Romeo P3 Monoposto (Tipo B), 1932
Alfa Romeo P3 Monoposto (Tipo B), 1932
Alfa Romeo P3 Monoposto (Tipo B), 1932
Alfa Romeo P3 Monoposto (Tipo B), 1932
Caracciola (left), Nuvolari (at wheel), Campari (right) - Alfa Romeo P3
Caracciola (left), Nuvolari (at wheel), Campari (right) - Alfa Romeo P3
Alfa Romeo P3 getting ready for the second heat
Alfa Romeo P3 getting ready for the second heat
Trossi in pits during practice for Monaco GP (1934) - Alfa Romeo P3
Trossi in pits during practice for Monaco GP (1934) - Alfa Romeo P3
Varzi, Chiron and Trossi
Varzi, Chiron and Trossi
Scuderia Ferrari P3s
Scuderia Ferrari P3s
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#14 - The 100 most beautiful cars (The Daily Telegraph)
The P3 Monoposto was the first genuine single-seat racing car in Grand Prix racing. It was powered by an eight-cylinder engine built around two four-cylinder blocks, each fed by its own Roots supercharger. One of the engines major strengths was its low-speed torque. Power to the rear wheels was transmitted through twin driveshafts that allowed for the drivers seat to be placed lower in the chassis. The original leaf spring suspension was replaced in 1935 by an independent Dubonnet front suspension. The complete car weighed in at only 1,545 lbs. and were it not for its cast-iron block engine, it would have weighed considerably less.

Winning its first race out of the box, the P3 went on to win 5 more major races in 1932. With the two best drivers of the day, Nuvolari and Caracciola racing them 1932 was a successful year. Some said that with a Jano designed car and their two great drivers they should not expect anything less. Financial troubles that had come to a head in 1933 saw the factory hand over racing to the Scuderia Ferrari team after going missing at the beginning of the year. Losing some of their initial superiority they still continued to wrack up victories later that year. 1934 found a new formula and new rivals from Germany. In the face of this Teutonic onslaught even Jano’s Monoposto could not stem the tide except for one race that has come down through the ages. The P3’s most famous victory came very late in its career when Tazio Nuvolari beat the combined German might of five Mercedes and four Auto Unions. That race, the German Grand Prix at the Nurburgring, in front of dozens of Nazi officials is considered one of Nuvolari’s greatest victories of all time while the car that took him to victory, the P3 is enshrined in the pantheon of great Grand Prix cars.


Alfa Romeo Tipo B P3 был разработан автомобильным гением Витторио Яно (Vittorio Jano) в 1932 году. Яно использовал шасси, созданного за год до этого, Tipo А, заменив силовой агрегат. Alfa Romeo Tipo А приводился в действие двумя, установленными рядом, шестицилиндровыми двигателями. Крутящий момент передавался через две коробки передач и два карданных вала на задние колеса. Подобная конструкция, выигрывая в мощности, обладала большим весом, и новый Tipo B изменил это положение.

Автомобиль был оборудован рядным восьмицилиндровым двигателем с двумя верхними распределительными валами, похожим на тот, который устанавливался на дорожные автомобили 8С 2300. Изменения коснулись впускной системы, перенесенной на левую сторону и увеличения хода поршня с 88 до 100 мм, что привело у росту объема двигателя до 2655 см3. Благодаря спаренному нагнетателю типа Roots мощность двигателя достигла 200 лошадиных сил. Дифференциал находился позади трехскоростной коробки передач и распределял мощность на два карданных вала, проходящих по треугольной схеме по бокам сиденья водителя, которое удалось опустить, понизив центр тяжести.

Победный дебют состоялся 5 июня 1932 года на Гран При в Монце. С Тацио Нуволари (Tazio Nuvolari) и Рудолфо Караччиолой (Rudolfо Caracciola) за рулем Alfa Romeo Tipo B доминировали весь сезон, включая Гран При Франции и Германии.

Alfa Romeo Tipo B P3 участвовал в гонках с 1932 по 1935 год, завоевав много побед. В 1933 году заводская команда Альфа-Ромео ушла с гонок, уступив место Scuderia Ferrari.
По материалам: www.ddavid.com; CARPEDIA.RU (www.carpedia.ru)
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