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).
Standardisation of a Lucas Horn (HF-722) fitted under the front apron.
| Identifier | ExFiles\Box 59\3\ Scan192 | |
| Date | 13th June 1932 | |
| RR 755 (10H) (19120, 13-10-31) BM. S/7588. COMPLETED 30.8.32. X6032, 20/25HP. STANDARDISATION of CHASSIS PARTS. Date 13.6.32. Description of Parts. LUCAS HORN HF{H. W. Frost - Coachwork Inspector}-722 UNDER FRONT APRON. Origin. Better road clearing results. Experimental Test Report. Good results obtained on 19-EX (P.II) and 17.G.IV. Road Test Report. The 20/25HP scheme is identical to P.II which has run 6,000 miles on 19-EX. Fitted to 17.G.IV. - 3,500 miles. X No. 6032 Drawing No. Part List Weight of Old Part. Weight of New Part. Difference per Car. Cost of Old Part. £ 3-12-6 Cost of New Part. £ 1-18-1 Difference per Car. £ 1-14-5 Decrease Signature from Cost Dept. that above is correct GRL 21/7/32. [Signature] Cost of Parts in Works which will be scrapped if commenced on :- Series.........£....... Series.........£....... Series.........£....... INITIAL | DATE | REMARKS SG.{Arthur F. Sidgreaves - MD} | 29-8-32 | Agreed Sg.{Arthur F. Sidgreaves - MD} R.{Sir Henry Royce} | 17.6.32. | Agreed FHR. WOR.{Arthur Wormald - General Works Manager} | 14.6.32 | Agreed Wor.{Arthur Wormald - General Works Manager} C. | | Agreed C. RG.{Mr Rowledge} | 15.7.32. | Agreed Rg.{Mr Rowledge} DA.{Bernard Day - Chassis Design} | 14.6.32. | Agreed Da.{Bernard Day - Chassis Design} But have not seen the final scheme adopted. BY.{R.W. Bailey - Chief Engineer} | 14.6.32. | Agreed By.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} | 15.6.32. | Agreed EP.{G. Eric Platford - Chief Quality Engineer} & Mx.{John H Maddocks - Chief Proving Officer} E.{Mr Elliott - Chief Engineer} | 16.6.32. | Agreed AE. PN.{Mr Northey} | 15.6.32. | Agreed PN.{Mr Northey} HS.{Lord Ernest Hives - Chair} | | Agreed Hs.{Lord Ernest Hives - Chair} | ||