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).
Proposed schemes N.sch.1288 and N.sch.1292 for strengthening the Goshawk front cross member.
| Identifier | ExFiles\Box 75\3\ scan0344 | |
| Date | 25th May 1922 | |
| X4260 To BY.{R.W. Bailey - Chief Engineer} from Da.{Bernard Day - Chassis Design} c. to CJ. c. to Wor.{Arthur Wormald - General Works Manager} c. to Hs.{Lord Ernest Hives - Chair} Da{Bernard Day - Chassis Design}7/M25.5.22. GOSHAWK - RE FRONT CROSS MEMBER. [REDACTED] X4260 We send herewith N.sch.1288 shewing the strengthened cross member flange. It is proposed to spread the bolt centres a little in all directions to increase the radii radius between the boss and the flange and to put up the gauge once more, namely to .160. In order to overcome the difficulty in dismounting this cross member it is also proposed that a thin sheet steel packing should be used, at each end of the cross member. We also send a further scheme, N.sch.1292 shewing a drop forging. The proposal is that N.sch.1288 should be bumped being the cheaper job, and only if it appears insufficiently strong from this test should N.sch.1292 be tried. You may like to put both experiments in hand simultaneously so as to eliminate possible delay. We should like the packing pieces as thin as will enable the cross member to be got in and out. The thickness shewn is probably too much but on account of the odd shape of frame at this point, we cannot be sure, and think it should be investigated experimentally. Da.{Bernard Day - Chassis Design} | ||