Rolls-Royce 10 hp

The Rolls -Royce 10 hp was the first car, which was built under a contract between Charles Rolls and Henry Royce of 23 December 1904 and was given the name Rolls- Royce. The 10 hp was in the company of Henry Royce Royce Ltd.. in the district of Trafford Park in Manchester, built and sold the car trading house of Charles Rolls, the CS Rolls & Co. at a price of GPB 395. The 10 hp was at the Paris Motor Show in December 1904, together with the sister models 15 hp and 20 hp and issued a motor for 30 hp.

Description

The 10 hp was the first of Henry Royce car, the Royce 10, has been developed by the three prototypes were created in 1903. The Royce 10, in turn, was based on a hand of Royce acquired decauville he improved technically. In particular, it succeeded Royce to make the car much quieter than any other existing automobiles. Unlike the Royce 10, which had a flat top cooler, the Rolls-Royce 10 hp had a radiator with triangular top, as it would be seen in all future Rolls- Royce automobiles.

The engine was a water-cooled two-cylinder in 1810, initially with cc ( bore x stroke = 95.25mm × 127 mm), the later ³ to 2059 cm ( bore × stroke = 101.6 mm × 127 mm) was drilled. There was an against -controlled engine in which the intake valves in the head hung, while the exhaust valves were laterally.

The engine was also based on an earlier design by Henry Royce, but had an improved crankshaft. He made 12 bhp (8.8 kW) at 1000 min -1. The mono- block engine was made ​​of cast iron; the crankcase made ​​of aluminum. The cylinder head was not removable. The compression was 3:1. The Sprühvergaser had developed Royce. The three-speed transmission was not interlocked with the motor. It transferred the force by means of cone clutch and open guided propshaft to the rear axle. The foot brake acted on the gear and the parking brake on drum brakes on the rear wheels. The chassis consisted of a lead frame of steel beams in the another frame supported the transmission. Front and rear axles were suspended on semi-elliptic longitudinal leaf springs. The wooden artillery wheels had the dimension of 810 × 90 The little car had a wheelbase of 1905 mm and a gauge of 1219 mm. He reached a top speed of 63 km / h

It should be made ​​20 copies, in the end there were only 16 pieces, because it was thought that a two-cylinder engine did not fit the new brand. The last 10 hp was 1906.

Rolls -Royce delivered only the chassis and the drive, but not the structures. The customer received the car without body and had to be proactive in asking a wheelwright, with them, the purveyor Barker & Co. in London was recommended. In addition to the 2- seater runabout was in accordance with Rolls- Royce catalog of 1905 also a Barker Tonneau available for four people to GBP 395. Access to the rear seats was made by lateral folding back of a front seat.

Still existing vehicles

Four 10 hp have survived, the oldest from 1904 with the VIN. 20154 and registration number U44 was sold to a private collector from Bonham 's Auctioneers for GBP 3.2 million ( approximately GBP 3.6 million including commission and taxes) in December 2007. The car with the VIN. 20162 and registration number AX148 from 1905 is one of the UK Science Museum Collection, and is usually at the Museum of Science and Industry issued in Manchester. A car from 1907 with the VIN. 20165 and the registration plate SU13 heard Bentley. A fourth car with the VIN. 20159 should be in a private collection.

The U.S. model Manufacturer Franklin Mint offered a very detailed model of the 10 hp Tonneau 1905, 1:16 (Art. # B11E797 ).

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