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).
Electrical specification document for the Wraith III, listing components and their part numbers.
| Identifier | ExFiles\Box 168a\4\ img015 | |
| Date | 7th June 1937 | |
| To Hrs. a.{Mr Adams} to By.{R.W. Bailey - Chief Engineer} a.{Mr Adams} to H.{Arthur M. Hanbury - Head Complaints} 61HHo rst/C.S/JH.7.6.37 Wraith lll Electrical Specification. The following is a specification of items which should be fitted to the Wraith III cars now being built up. Will By please check up that production specifications are brought into line where necessary. Dynamo Complete now issued. " armature D.E.291. " brackets etc. D.E.250. " Commutator D.E.54373. " frame and field D.E.254. Field connections of this dynamo to be suitable for use with Lucas LK{L. King}/T regulator and cutout. Regulator and cutout. Lucas LK{L. King}/T. Starter motor (complete). " armature D.E.C/1. " Bearing Bracket D.E.C/2. " Frame & Field D.E.C.68. " Drive D.E.C.86. [Handwritten note next to starter motor components:] not yet ready Standard motor armature being fitted Starter main switch. Standard. Ignition distributor and condenser. D.E.J/1. Ignition coil L.75673. Ballast (Glowray) D.E.296. Switchbox D.E.197. Distribution board. D.E.1190. Horn A.T.13 Lucas. Head lamp. R.K. type Lucas F.100. | ||