Rolls-Royce 30 hp

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The Rolls -Royce 30 hp was one of the four car models that were built according to the contract between Charles Rolls and Henry Royce 23 December 1904. Although the car was Rolls- Royce, but was by the company. Henry Royce Royce Ltd. in the years 1905 and 1906 in the district of Trafford Park in Manchester, built and only when car trading house of Charles Rolls, the CS Rolls & Co., for the price of £ 890 sold. The engine of 30 hp, together with its sister models complete 10 hp, 15 hp, 20 hp and issued in December 1904 at the Paris Motor Show.

Claude Johnson urged that a six-cylinder model would be included in the model range of Rolls- Royce, as well as other luxury carmakers such as Napier & Son, such cars built. The 30 hp was reinstated as Rolls- Royce went to the one-model strategy and only made ​​the 40/50 hp ' Silver Ghost ".

The engine of 30 hp consisted of three separately cast two cylinder blocks that came from the 10 hp and 20 hp was used in the four-cylinder model. Therefore, he agreed (127 mm) with the other engines agree (101.6 mm) and stroke in bore. He was water-cooled, had a displacement of 6178 cc and its valves were left unchecked ( intake valves in the head hanging, standing sideways exhaust valves ). The crankshaft ran in seven main bearings, so that the vibrations have been minimized, a problem that occurred in many former six-cylinder engines, as it is not yet fully mastered the dynamic forces of so long a motor at this time. The early specimens had a high voltage ignition with pre-charged batteries, a buzzer and an ignition coil in the later cars, there was also a magneto ignition. Since the lighting was side and rear powered by petroleum and headlights with carbide, there were no other AC loads and the batteries did not have to be loaded during the trip. The engine power was 30 bhp (22 kW) at 1000 min -1. The speed of the engine being kept constant by means of a mechanical speed regulator, in which the driver could interfere with the accelerator. First, a three-speed gearbox was built, which was later replaced by a four-speed transmission and the later, all Rolls-Royce models were given. The transmission was connected through a short shaft and a leather cone clutch with the engine. The four- speed gearbox was the third gear the direct gear ( ratio 1: 1) and the fourth gear was overdrive function.

The car reached a top speed of 88 km / h The foot brake acted on a drum brake on the transmission output and the hand brake on drum brakes on the rear wheels. Front and rear axle hung on longitudinal semi-elliptic leaf springs. At the rear, this suspension was additionally supported by a transverse leaf spring. The cars had wooden spoke wheels.

There were two wheelbases, 2845 mm and 2997 mm; the track was the same and amounted to 1422 mm in both chassis. Rolls- Royce produced only the chassis and the mechanics, not the bodies. The cars were sold and the customer care itself around the body that existed in open or closed versions.

Of the 37 specimens that were manufactured 1905/1906, there was only one with the VIN. 26355 received.