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 detailing modifications for axles, suspension, petrol tank, frame, and jacks for Spectre vehicles.
| Identifier | ExFiles\Box 91\1\ scan0079 | |
| Date | 19th September 1935 guessed | |
| (4) measured on No.2. SpectreCodename for Phantom III in present condition. The improvements to increase the lock over No.2. should be instructed for No.3. and modified pieces should be sent out to No.2. as soon as ready. Back Axle. Incorporate modifications to avoid damage by stones to N.Sch. 4607 otherwise as SpectreCodename for Phantom III 2. Front Suspension. To be autoloc type but without autoloc mechanism working. N. Sch. 4520 with mechanism N.Sch.4603 incorporated. Buffers to N. Sch.4613. Springs to G.83698 and G.83692. Rear Suspension. Rear springs to be provided with independent oil supply to avoid stiffening up due to leak through shackle. Dampers to N.Sch.4525. Petrol Tank - Large type - 33 gallons. Frame. - Fit with diagonal stiffeners to N.Sch.4627. Jacks. - Fit hydraulic type D.W.S. with engine driven pump. E.{Mr Elliott - Chief Engineer} | ||