Mercedes-Benz W125

Η Mercedes-Benz W125 έκανε παγκόσμιο ρεκόρ ταχύτητας σε δημόσιο δρόμο στις 28 Ιανουαρίου του 1938, όταν τότε έπιασε τα 432,7 χλμ/ώρα. Τώρα η Mercedes-Benz θέλησε να μας θυμίσει το ρεκόρ αυτό της W125 75 χρόνια μετά, ενός άκρως αεροδυναμικό αυτοκινήτου, το οποίο φορούσε έναν V12 5.577 κ.εκ κινητήρα με δύο κομπρέσορες που τον έκαναν να αποδίδει συνολικά 736 άλογα. Είχε αεροδυναμικό συντελεστή οπισθέλκουσας μόλις 0,157 Cd και η ψύξη του κινητήρα γινόταν από ένα θερμαντικό σώμα το οποίο ήταν γεμάτο με 500 λίτρα νερού και πάγου.

Το ρεκόρ έγινε με οδηγό τον Rudolf Caracciola και το αυτοκίνητο πλέον βρίσκεται στο μουσείο της Mercedes-Benz. Φαντάσου να πας με 432,7 χλμ σε δημόσιο δρόμο το 1938. Εντυπωσιακό νούμερο ακόμη και σήμερα, με την Bugatti Veyron Super Sport να έχει πιάσει τα 434 χλμ/ώρα, αλλά όχι σε δημόσιο δρόμο, αλλά στη πίστα δοκιμών Ehra-Lessien του VW Group κοντά στο Wolfsburg της Γερμανίας.

Μετά το W125, η Mercedes-Benz προσπάθησε να κατασκευάσει το Τ80, αλλά αυτό δεν πρόλαβε να ολοκληρωθεί, μιας και το πρόλαβε ο Δεύτερος Παγκόσμιος Πόλεμος.

[Πηγή: Mercedes-Benz]

Δελτίο Τύπου

Mercedes-Benz W 125 record-breaking car

432.7 km/h – a world record for 75 years

On 28 January 1938, the Mercedes-Benz W 125 record-breaking car set a world speed record on a public road which still stands to this day: a speed of 432.7 km/h was achieved by Rudolf Caracciola. The original vehicle is now showcased to impressive effect at the Mercedes-Benz Museum.

“Time and again our visitors talk about the spectacular presentation of the Mercedes-Benz W 125 record-breaking car, which is hanging on a vertical wall. Together with six other record-breaking vehicles, the streamlined car adds the impressive finishing touch to the high-bank curve in Legend Room 7‚ ‘Silver Arrows – Races and Records’. Acoustically, there is even an atmosphere similar to that found on the race track”, explains Michael Bock, Head of Mercedes-Benz Classic.

Rudolf Caracciola, who at that time was the lead driver for the Mercedes-Benz racing department, achieved the record – which is still valid to this day – on 28 January 1938 on the road between Frankfurt am Main and Darmstadt, by hitting a speed of precisely 432.692 km/h over one kilometre with a flying start. In addition, the existing record over the flying mile was also set at 432.36 km/h. These figures represent the averages from two runs made in opposite directions.

For this top speed run, the Mercedes-Benz W 125 record-breaking car made use of an aerodynamically optimised body. Streamlined racing cars were not unusual at the time: Mercedes-Benz also successfully made use of them in circuit races.

For the record runs in January 1938, the record-breaking car – which was based on the all-conquering W 125 Silver Arrow – was not only equipped with a specially optimised twelve-cylinder engine with two superchargers, but also featured a flat, completely covered body with wedge-shaped, tapered tail end. Using wind tunnel measurements, the engineers reduced the aerodynamic drag to a sensational Cd value of 0.157. This included using a radically scaled-down air intake on the front end. As a result, the record-breaking car only “breathed in” – through two small openings – the amount of air required for the 5.6-litre V12 MD 25 DAB/3-type engine to work. Engine cooling, on the other hand, was achieved without using fresh air: instead the radiator was embedded in a 500-litre chest filled with ice and water.

  • Year of construction: 1938
  • Cylinders: V12
  • Displacement: 5577 cc
  • Power output: 736 hp (541 kW)
  • Top speed: 432.7 km/h

The Mercedes-Benz Museum is open daily from Tuesday to Sunday from 9.00 a.m. to 6.00 p.m. Registration, reservations and current information: Monday to Sunday from 9.00 a.m. to 6.00 p.m. on tel. no.: (0711) 17 30 000, by e-mail to classic@daimler.com or online at www.mercedes-benz-classic.com/museum.