From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Specification sheet for the Austin 12 car.
| Identifier | ExFiles\Box 109\3\ scan0002 | |
| Date | 10th October 1939 | |
| A U S T I N 1 2 ENGINE. Bore 69.35 m.m. Stroke 101.6 m.m. 1535 c.c. Tax rating 11.9 h.p. 42 h.p. at 4,000 r.p.m. Large dia. crankshaft. Bi-metal main bearings. Side valves, barrel tappets. Anodised alum. alloy pistons. Alum. cyl. head. TRANSMISSION. Borg and Beck clutch. 4 speed gear-box, synchromesh, 2nd, 3rd and top. Gear ratios. 4.89, 7.68, 12.08, 18.53 to 1. Hardy-Spicer prop. shaft. ¾ floating axle. Girling brakes. FRAME. Channel section frame, crossbraced.with reversed channelling, forming box section at side members. Box section crossmember at front. ENGINE MOUNTING. Live rubber at front. Double insulation at rear. Crossmember rubber mounted. STEERING. Bishop-Cam design. SIZE. Overall length 14 ft. 3 ins. Overall width 5 ft. 8 ins. Wheelbase 8ft . 8.56 ins. Track front, 53.56 ins. rear, 56.0 ins. COACHWORK. Rear Cushion 46.000 ins. Between screen pillars 45.000 ins. At elbows of front seat 54.000 ins. At elbows of rear seat 58.000 ins. Length of boot floor 24.000 ins. Height of boot 16.000 ins. Luggage boot lid{A. J. Lidsey} made to carry 1 cwt. of luggage. Horizontal spare wheel below boot. Built-in number plate. Provision for extras:- (Radio, or (Smith car air-conditioning plant for warm air or cool fresh air, with de-misting ducts. Permanent hydraulic jacks. PRICE. £235 with sunshine roof. WHEELS. Steel. 5.50 x 16. TANK. 8 gallons. GROUND CLEARANCE. 6.750 ins. WEIGHT. 23.5 cwt. empty of passengers. 1.72 lbs. per c.c. | ||