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The 125 F1 was Ferrari's first Formula One car. It shared its engine with the 125 S sports racer which preceded it by a year, but was developed at the same time by Enzo Ferrari, Valerio Colotti and designer, Gioacchino Colombo.

Ferrari 125 F1
Overview
ManufacturerFerrari
Production1948–1950
DesignerGioacchino Colombo, Valerio Colotti
Body and chassis
ClassFormula One car
Powertrain
Engine1.5 L Colombo 125 V12
Dimensions
Wheelbase2160 mm (85 in)
2320 mm (91 in)
Length3685 mm (145 in)
Width1400 mm (55 in)
Height1025 mm (40 in)
Curb weight710 kg (1565 lb)
Chronology
SuccessorFerrari 275 F1
See also the 125 S, a sports racer sharing the same engine

Mechanical detailsEdit

The 125 F1 used a supercharged 1.5-litre V12 engine and sported a steel tube-frame chassis with longitudinal and cross members.[1] It had a double wishbone suspension with a transverse leaf spring in front and a torsion bar in the rear which was upgraded to a de Dion tube for 1950. Worm and sector steering and four-wheel drum brakes were the norm for the time. The 2,160 mm (85 in) wheelbase was uprated to 2,320 mm (91 in) in the 1949 redesign. The chassis and transmission design was by Valerio Colotti.

The 125 F1 was powered by Colombo's 1.5-litre (1497 cc/91 in³) V12. It had a single overhead camshaft on each bank of cylinders with a 60° angle between the two banks. The engine had two valves per cylinder fed through one Weber 40DOC3 or 50WCF carburettor. With just a 6.5:1 compression ratio, the supercharged engine still produced 230 PS (169 kW; 227 hp) at 7000 rpm.[2] However, the Roots-type single-stage supercharger was incapable of producing the high-end power required to compete with the strong eight-cylinder Alfa Romeo 158 and four-cylinder Maserati 4CLT. Strong driving and a nimble chassis, however, allowed the company to place third in its first outing, at the Valentino Grand Prix on September 5, 1948 and the company persevered in racing.

For 1949, the engine was further modified with dual overhead camshafts (though still two valves per cylinder) and a two-stage supercharger. This combination gave the car better top-end performance and the resulting 260–280 PS (191–206 kW; 256–276 hp) gave it five Grand Prix wins.[3] Development continued the following year, but the problematic superchargers were dropped in favor of larger displacement and Lampredi's 275 engine superseded the original Colombo engine.

The original chassis have been lost (used for Ferrari 275 F1), but an exact replica with the original Colombo engine currently resides in Museo Ferrari in Maranello alongside newer Ferrari F1 machines.

 
Museo Ferrari

RacingEdit

The 125 F1 debuted at the Valentino Grand Prix on September 5, 1948. Three cars were fielded, with drivers Prince Bira of Siam, Nino Farina, and Raymond Sommer who placed third in the race.

Victories
Date Location Driver
October 24, 1948 Garda Circuit, Salò Giuseppe Farina
July 3, 1949 Switzerland Grand Prix, Bern Alberto Ascari
July 31, 1949 Zandvoort Grand Prix Luigi Villoresi
August 20, 1949 Daily Express Trophy, Silverstone Alberto Ascari
September 11, 1949 Italian Grand Prix, Monza Alberto Ascari
September 25, 1949 Masaryk Circuit, Brno Peter Whitehead
July 13, 1950 Jersey Road Race Peter Whitehead
August 12, 1950 Ulster Trophy, Dundrod Peter Whitehead
October 1, 1950 Interstate Race, Interlagos Francisco Landi
January 27, 1951 São Paulo Grand Prix Francisco Landi
May 20, 1951 Governador Noguera Garcez Race, Interlagos Francisco Landi
June 28, 1951 Bõa Vista Grand Prix, Rio de Janeiro Francisco Landi

Complete Formula One World Championship resultsEdit

(key) (results in bold indicate pole position, results in italics indicate fastest lap)

Year Engine Tyres Drivers 1 2 3 4 5 6 7 8
1950 Ferrari 125 F1 1.5 V12 D GBR MON 500 SUI BEL FRA ITA
  Peter Whitehead DNS 3 7
P   Luigi Villoresi Ret Ret 6
  Alberto Ascari 2 Ret
  Raymond Sommer 4
1951 Ferrari 125 F1 1.5 V12 D SUI 500 BEL FRA GBR GER ITA ESP
  Peter Whitehead Ret Ret
P Ret
1952 Ferrari 125 F1 1.5 V12 D SUI 500 BEL FRA GBR GER NED ITA
  Peter Whitehead 10 DNQ
Source:[4]

Post-WWII Grandes Épreuves resultsEdit

(key) (Races in bold indicate pole position) (Races in italics indicate fastest lap)

Year Entrant Engine Drivers 1 2 3 4 5
1948 Scuderia Ferrari Ferrari 125 F1 1.5 V12 MON SUI FRA ITA GBR
  Raymond Sommer 3 DNA
  B. Bira NC
  Giuseppe Farina Ret DNA
1949 Scuderia Ferrari Ferrari 125 F1 1.5 V12 GBR BEL SUI FRA ITA
  Alberto Ascari 3 1 WD 1
  Luigi Villoresi 2 2 Ret Ret
  Felice Bonetto Ret
  Raymond Sommer 5
  Dudley Folland 8*
  Peter Whitehead 8* 9
private 4 3 Ret

* Indicates shared drive with Dorino Serafini

ReferencesEdit

  1. ^ "GILCO ferrari 125 GP chassis". Gilco Design. Retrieved August 10, 2006.
  2. ^ "125 Single Stage F1". mitorosso.com. Retrieved 11 July 2019.
  3. ^ "125 F1 GP 1949 – Two Stage". mitorosso.com. Retrieved 11 July 2019.
  4. ^ Small, Steve (1994). The Guinness Complete Grand Prix Who's Who. Guinness. pp. 37, 357, 388 and 400. ISBN 0851127029.