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).
Blueprint for a Dunlop Type 72R wire wheel.
| Identifier | ExFiles\Box 159\1\ scan0390 | |
| Date | 5th November 1938 | |
| TITLE BLOCK: Dunlop Rim & Wheel Co Ltd Foleshill, Coventry Customer ROLLS ROYCE Print Ref. Design No Drawn: H.G. Richards Checked: [Illegible Signature] Date: 5TH NOV 1938 Scale: FULL SIZE MAIN TITLE: DUNLOP TYPE 72R WIRE WHEEL. CODE X 432 A.{Mr Adams} ANNOTATIONS & DIMENSIONS: CDS 1488. 3 BALANCE UNITS SPACED AS SHOWN 5.50-16 RIM. BASE BLOCK RR 0149 CHAMFERED AS SHOWN. 22 FRONT SPOKES 13/64" 7G. SINGLE BUTTED SP{Mr Spinney} 288 44 REAR SPOKES 13/64" 7G. SINGLE BUTTED SP{Mr Spinney} 288 17/64" 13/64" 5/64" 45° 1/8" .772" .550" 1.047" .312" .562" 1.062" 1.816" 2.335" 30° 130 10/11" 32 8/11° 18° 14 8/11° 9° 6 9/11° 9 6/11° 3 9/11° 8 2/11° 5 22/32" 76 11/16" 69 13/16" 16 3/16" 8 5/11" | ||