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The Auto Union Type C - Porsche design number 22

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Created on October 28, 2011

Reading time 12min

Written by:

Martin Schröder

Photos:

Daniel Reinhard

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Archiv Martin Schröder

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Bruno von Rotz

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Archiv Bernhard Brägger

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Daniel Reinhard

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Archiv Martin Schröder

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Bruno von Rotz

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Archiv Bernhard Brägger

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Auto Union Typ C (1936) - Boxenstopp mit Reifenwechsel an Rosemeyers Wagen beim Großen Preis von Deutschland am 26. Juli 1936 - hinten Ferdinand Porsche mit zwei Stoppuhren

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Auto Union Typ C (1936) - Typ C-D Bergrennwagen mit Stuck auf der Wiener Höhenstrasse im Jahre 1938

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Auto Union Typ C (1936) - Rosemeyer im Four Wheel Drift in Donington im Jahre 1937

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Auto Union Typ C (1936) - Die 750 kg Formel besagte, dass ein Auto auf der Waage maximal 750 kg wiegen durfte

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Auto Union Typ A (1934) - Sonderausführung für Frankfurt mit unter der Querblattfeder hindurchgeführte Acht-in-Eins-Auspuffrohre

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Auto Union Typ C (1936) - Hinterachsaufhängung mit Doppelgelenk-Pendelachse mit seitlichen Schubrohren

Bild von Partner Porsche AMAG November Foto-Galerie 2025

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Auto Union Typ C (1936) - die vorderen Radaufhängungen wurden über die Zeit nur minimal verändert, beim GP Deutschland von 1936 wurden Versuche mit hydralischen Dämpfern gemacht

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Auto Union Typ C (1936) - Grundlegende Dimensionen (handschriftlich)

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Auto Union Typ C (1936) - Planzeichnung

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Auto Union Typ C (1936) - Planzeichnng über Modell gelegt

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Auto Union Typ C (1936) - Modell von der Seite gesehen

Bild von Partner Planai Classic 2025 Inline 1

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Auto Union Typ C (1936) - Modell von schräg oben gesehen

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Auto Union Typ C (1936) - Modellausführung - von vorne gesehen

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Auto Union Typ C (1936) - Modellausführung des berühmten Grand-Prix-Wagens

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Klausen Bergrennen Memorial 2002 - Auto Union Typ C

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Klausen Bergrennen Memorial 2002 - Auto Union Typ C

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Auto Union Typ C (1936) - Martin Tomczyk auf dem Mittelmotor-Monoposto am Klausenrennen 2002

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Auto Union Typ D (1938) - aufgenommen an der Ennstal Classic 2010

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Auto Union Typ D (1938) - aufgenommen an der Ennstal Classic 2010

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GP Suisse 2009 in Bern - Auto-Union Typ D (1936)

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Auto Union Typ D (1938) - aufgenommen an der Ennstal Classic 2010

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Auto Union Typ D (1938) - aufgenommen an der Ennstal Classic 2010

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Auto Union Typ D (1938) - aufgenommen an der Ennstal Classic 2010

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Auto Union Typ D (1938) - aufgenommen an der Ennstal Classic 2010

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Auto Union Typ D (1938) - aufgenommen an der Ennstal Classic 2010

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Auto Union Typ D (1938) - aufgenommen an der Ennstal Classic 2010

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Auto Union Typ D (1938) - aufgenommen an der Ennstal Classic 2010

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Auto Union Typ D (1938) - aufgenommen an der Ennstal Classic 2010

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Auto Union Typ D (1938) - aufgenommen an der Ennstal Classic 2010

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GP Suisse 2009 in Bern - Auto-Union Typ D (1936)

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GP Suisse 2009 in Bern - Auto-Union Typ D (1936)

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GP Suisse 2009 in Bern - Auto-Union Typ D (1936)

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GP Suisse 2009 in Bern - Auto-Union Typ D (1936)

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GP Suisse 2009 in Bern - Auto-Union Typ D (1936)

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Summary

The AUTO UNION Type C or - as it was called in contemporary terminology - the AUTO UNION 6ltr. Grand Prix car 1936/37 - is both the highest development stage of the Porsche design for a Grand Prix racing car from 1932 and the basis for the chassis concept of the Volkswagen and its numerous offshoots as well as the Porsche 356 until 1965. This paper will attempt to show the development of the chassis and engine of the AUTO UNION Type C 1936-1937.

This article contains the following chapters

The 750 kg formula
Wanderer, von Oertzen and Porsche
The shared subsidy
Imperial patent no. 692 180
Three special features of the design in the patent specification
Adolf Rosenberger and the Benz Tropfenwagen
Bernd Rosemeyer and the AUTO UNION Type C
The arrangement of the masses in AUTO UNION GP cars in 1934 and F1 cars today
The further development of the chassis
The drive train
Comparison of the engine data of Auto Union models A, B and C
Further information

Estimated reading time: 12min

Preview (beginning of the article)

The AUTO UNION Type C or - as it was called in contemporary terminology - the AUTO UNION 6ltr. Grand Prix car 1936/37 - is both the highest development stage of the Porsche design for a Grand Prix racing car from 1932 and the basis for the chassis concept of the Volkswagen and its numerous offshoots as well as the Porsche 356 until 1965. This paper will attempt to show the development of the chassis and engine of the AUTO UNION Type C 1936-1937. Of course, such an important design, which was used for decades, did not "fall from the sky", but was the result of a lengthy development process, the most important stages of which will be briefly outlined for a better understanding. On 12 October 1932, the Porsche office, which was officially entered in the commercial register on 25 April 1931, received the news of the decision by the sports commission of the AIACR (International Association of Accredited Automobile Clubs) on the racing formula for Grand Prix cars valid from 1934: maximum weight 750 kg without fuel, coolant, oil and tires. For the rest, the designer had a free hand. Free displacement, turbocharging and fuel! The challenge of this weight formula, which was implemented for the first time, was for the designer to achieve the optimum within this weight limit using the materials known at the beginning of the 1930s. Ferdinand Porsche felt so spurred on by the specifications that he and his partner and financier Adolf Rosenberger founded "Hochleistungsfahrzeugbau GmbH" on November 1, 1932, a company independent of the design office with Rosenberger as managing director.

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