Voisin
Gabriel Voisin was a pioneer aircraft manufacturer and flyer. After World War 1 he left aviation behind him to concentrate on car manufacture. His designs were pioneering and highly individualistic with so many ideas incorporated from his previous aircraft background, as one can see so clearly with his monocoque chassis Voisin C6 entry for the 1923 French GP! Most Voisin cars were fitted with the Knight sleeve valve engine. All Voisin models were prefixed with C, the last model C30 being at the insistence of his financiers for something less experimental and more conventional, and perhaps more affordable, built around the mechanicals of a Graham Paige (but with a supercharger added). If you are interested in Voisin and the models built, the book on the subject written by Pascal Courteault is essential reading. After the war the Voisin business was nationalised. One of Voisins employees Andre Lefebvre later went to work for Citroen designing the Traction Avant, the 2CV and postwar DS range, all of which seem to embody so much of what was Gabriel Voisin.
Below listed are a few Voisin car models and the tyre sizes they left the factory with:
- Voisin C3. 95x140mm, tyre size 895x135
- Voisin C5. 95x140, tyre size 895x135
- Voisin C12. 86x130mm, tyre size 33x6.75 for 1928 and 1929 only) which is the same as Blockley 6.75/7.00x21
- Voisin C12 from 1930 and onwards was 32x6.75 which is the same as Blockley 6.50/7.00x20 tyre
- Voisin C16 94x140mm tyre size 32x6.75 which is the same as Blockley 6.50/7.00x20 tyre
- Voisin C16 tyre size changed to 33x6.20 for 1932 which is equivalent Blockley 6.00x21 tyre
- Voisin C18, 64x100mm (12 cylinder), tyre size 32x6.75 which is the same as Blockley 6.50/7.00x20 tyre
- Voisin C18 tyre size changed to 33x6.20 for 1932 which is equivalent Blockley 6.00x21 tyre
- Voisin C20. 72x100mm (12 cylinder), tyre size 32x6.75 which is the same as Blockley 6.50/7.00x20 tyre (for the standard and lowered chassis )
- Voisin C22. 94x140mm tyre size 32x6.75 which is the same as Blockley 6.50/7.00x20 tyre (for the standard and lowered chassis)
- Voisin C24. 67x110mm, tyre size 6.50x17
- Voisin C25. 76x110mm, tyre size 6.50x18
- Voisin C26. 76x110mm, tyre size 6.50x18
- Voisin C28. 80x110mm, tyre size 6.50x18
- Voisin Aerosport. 80x110mm, tyre size 6.50x18
- Voisin V12L. 76x110mm 12 cylinder. Tyre size 6.50x18
- Voisin C30. 82.5x111mm, tyre size 6.50x17
- Voisin C30S. 82.5x111mm, tyre size 6.50x17
- Voisin C27. 76x110mm, tyre size 6.50x18
