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 5.7 Litre Silver Dawn 80 Hs' Special vehicle.
| Identifier | ExFiles\Box 124\1\ scan0208 | |
| Date | 21th July 1939 | |
| ROLLS-ROYCE, LTD. STANDARDS 1044 24 JUL 1939 DERBY GRY{Shadwell Grylls} Issued to:- ~~By.{R.W. Bailey - Chief Engineer}~~ ~~Da.{Bernard Day - Chassis Design} (6 copies)~~ ~~Rm.{William Robotham - Chief Engineer} (7 copies)~~ ~~RHC.{R. H. Coverley - Production Engineer}(3 copies)~~ ~~HPS.{Horace Percy Smith - Experimental Factory Mgr}~~ ~~D.E.F.G.Dept.~~ ~~Ald.{F. Allwood - Experimental Design}~~ ~~Roy{Sir Henry Royce}/Les.{Ivan A. Leslie}~~ ~~By/JW.~~ ~~By/NS.{Norman Scott}~~ SPECIFICATION NO. SD.80/5. ISSUE NO. 1 SHEET NO. 1 5.7 LITRE SILVER DAWN 80. Hs{Lord Ernest Hives - Chair}' SPECIAL. SPECIFICATION - 33G Vll. ENGINE. B.80. No.7 UNIT. HIGH POWER HEAD. O.H.INLET. SIDE EXHAUST. 3.5" Bore. 4.5" Stroke. 8 Cylinder. 5675c/c Capacity 6.4/1 Compression Ratio. GEARBOX. OVERALL RATIO. 4th. ~~3.909~~ 3.727 3rd. ~~5.45~~ 4.871 2nd. ~~8.14~~ 7.763 1st. ~~11.7~~ 10.857 Rev. ~~11.25~~ 10.725 GEARBOX RATIO. 4th. Direct. 3rd. 1.307 2nd. 2.083 1st. 2.917 Rev. 2.878 Synchromesh. 4th. 3rd. 2nd. REAR AXLE. .65 Hypoid. 11/41 Semi Floating. (~~3.909~~ 3.727 to 1) SUSPENSION. Bent Pan I.F.S. Track Front. ~~58.0"~~ 59.475" Wheel Base. 10'-10". 56" Rear Springs. Track Rear. ~~59.5"~~ 60.450" WHEELS AND TYRES. 7.5" Tyre 16.0" x 5.5" Rim. PETROL TANK. 22 Gallons. Compiled by:- F.Freeman. By/fs.{F. Steele} Approved by:- By Rm{William Robotham - Chief Engineer} Date:- 21.7.39. | ||