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).
Specifications for the front end of the J. 3. chassis, with comparisons to the 25HP model.
| Identifier | ExFiles\Box 178\3\ img029 | |
| Date | 16th January 1932 | |
| BT.{Capt. J. S. Burt - Engineer} FROM DA{Bernard Day - Chassis Design}/EV.{Ivan Evernden - coachwork} C. to H.S. J.{Mr Johnson W.M.} 3. - FRONT OF CAR. x 5830. x 5380. We send herewith N. sch. 3413. showing the front end of J.{Mr Johnson W.M.} 3. chassis. BONNET. This drawing will enable you to set out the rivetless bonnet which is exactly the same as that already made for 25HP. except for slight variations in overall dimensions. The bonnet is carried over the dash 4" as standard on all cars, and has dropped sides. The wheel carrier is made to permit of this. RADIATOR. You have already received on LoC.2947. particulars of the bottom tanks and suspension. The dimensions of the top tank are the same as 25HP. For the first car we suggest you build up a radiator of standard construction, and in the near future we will send you as an alternative a design of the same dimensions, but of loose shell construction. Both radiators will have oval shutters. A scheme to fit these to existing mechanism will follow immediately. DASHBOARD. The design of fixing - N. sch. 3414. - is sent to you today. The dash it-self will follow in a few days. FRONT APRON. This is almost identical with that you did for 25HP. and we therefore wish you to set it out. LAMP BRACKETS. The lamp brackets and front wing stays are exactly identical with 25HP. The lamps are Lucas R.180.SEDS. Wing lamps are Lucas R.370. WING STAYS. There are three wing stays a side. The front one is the same as 25HP. and also is the intermediate one. The rear one is shown on N. sch. 3414. SIDE WHEEL CARRIER. The position of the wheel is given for both 18" and 19" rims. The carrier bracket is given on N. sch. 3414. The plate and centre bolt are the same as 25HP. COACHWORK PRINT. We suggest you will wish to add this information to the chassis print which you will have been building up. DA{Bernard Day - Chassis Design}/EV.{Ivan Evernden - coachwork} | ||