Rolls-Royce 10 hp

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Rolls Royce
Rolls-Royce 10 hp Barker Runabout, chassis no.  20162 (1905)
Rolls-Royce 10 hp Barker Runabout , chassis no. 20162 (1905)
10 hp
Production period: 1904-1906
Class : Middle class
Body versions : Phaeton , touring car
Engines:
Otto engines : 1.8–2.0 liters
(8.8 kW)
Length: 3175 mm
Width: 1413 mm
Height:
Wheelbase : 1905 mm
Empty weight : approx. 555 kg
Previous model Royce 10
successor Rolls-Royce 15 hp

The Rolls-Royce 10 hp was the first passenger car that was built on the basis of a contract between Charles Rolls and Henry Royce of December 23, 1904 and was given the name Rolls-Royce . The 10 hp was built in the company of Henry Royce, Royce Ltd. In the district of Trafford Park in Manchester , built and the car trade home of Charles Rolls, of CS Rolls & Co. at a price of GBP sold 395th The 10 hp was exhibited at the Paris Motor Show in December 1904 along with its sister models 15 hp and 20 hp and an engine for the 30 hp .

description

The 10 hp had been developed from Henry Royce's first car, the Royce 10 , of which three prototypes were made in 1903. The Royce 10 in turn was based on a Decauville purchased second-hand from Royce , which he technically improved. In particular, Royce managed to make the car much quieter than any other existing automobile. Unlike the Royce 10, which had a radiator with a flat top, the Rolls-Royce 10 hp had a radiator with a triangular attachment, as would be seen in all future Rolls-Royce automobiles.

The engine was a water-cooled series - two-cylinder , which has been drilled later to 2059 cm³ (bore x stroke = 101.6 mm × 127 mm) with first 1810 cc displacement (bore x stroke = 95.25 mm × 127 mm). It was a counter-controlled engine with the intake valves hanging in the head while the exhaust valves were on the side.

The engine was also based on an earlier design by Henry Royce, but had an improved crankshaft . He made 12 hp (8.8 kW) at 1000 min -1 . The monoblock engine was made of cast iron; the crankshaft housing made of aluminum . The cylinder head was not removable. The compression was 3: 1. Royce had developed the spray carburetor . The three-speed gearbox was not locked to the engine. It transmitted the power to the rear axle by means of a cone clutch and an open cardan shaft . The footbrake worked on the gearbox and the handbrake on drum brakes on the rear wheels. The chassis consisted of a ladder frame made of steel girders in which another frame supported the transmission. The front and rear axles were suspended from semi-elliptical longitudinal leaf springs. The wooden artillery wheels had the dimensions 810 × 90. The small car had a wheelbase of 1905 mm and a track of 1219 mm. It reached a top speed of 63 km / h.

20 copies were supposed to be made, but 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 created in 1906.

Rolls-Royce only supplied the chassis and drive, but not the superstructure. Customers received the wagons without a body and had to find a wheelwright themselves, recommending the purveyor to the court, Barker & Co. in London. In addition to the 2-seater runabout , a Barker tonneau for four people was also available for GBP 395 according to the Rolls-Royce catalog from 1905 . The rear seats were accessed by folding a front seat sideways.

Existing vehicles

Four 10 hp survived, the oldest from 1904 with the chassis number. 20154 and the registration number U44 was auctioned in December 2007 to a private collector by Bonham's Auctioneers for GBP 3.2 million (approx. GBP 3.6 million including commission and taxes). The car with the chassis no. 20162 and registration number AX148 from 1905 belongs to the UK Science Museum Collection and is normally on display at the Museum of Science and Industry in Manchester. A car from 1907 with the chassis no. 20165 and the registration number SU13 belongs to Bentley . A fourth car with the chassis no. 20159 is said to be in a private collection.

The American model manufacturer Franklin Mint offered a very detailed model of the 10 hp Tonneau from 1905 in 1:16 scale (Art. # B11E797).

literature

  • David Culshaw, Peter Horrobin: The Complete Catalog of British Cars 1895-1975. New edition. Veloce Publishing plc., Dorchester 1997, ISBN 1-874105-93-6 .
  • Jonathan Woods: Great Marques: Rolls-Royce (1989), Tiger Books International PLC, London; ISBN 1-8704-6198-3 , hardcover (English)

Web links

Commons : Rolls-Royce 10hp  - collection of pictures, videos and audio files

Individual evidence

  1. ^ Peter Pugh: The Magic of a Name. The Rolls-Royce Story. The First 40 Years. Icon Books et al., Duxford et al. 2000, ISBN 1-84046-151-9 .
  2. The Rolls-Royce company was only founded in 1906.
  3. ^ A b c d Anthony Bird, Ian Hallows, Brendan James: The Rolls-Royce Motor Car and the Bentley since 1931. 6th revised edition. Batsford Books, London 2002, ISBN 0-7134-8749-6 .
  4. a b c d Woods: Great Marques: Rolls-Royce (1989), p. 10
  5. Fig. On the prospectus page at Woods: Great Marques: Rolls-Royce (1989), p. 10
  6. Fig. Franklin Mint: Rolls-Royce 10 hp (1905); 1:16 scale model
  7. ^ Sales Notes , Bonham's Auctioneers, December 3, 2007