Diagram and chart showing frame deflections under load with different tie rod and stiffener configurations for a 20 HP chassis.
| Identifier | ExFiles\Box 75\3\ scan0358 | |
| Date | 17th October 1923 | |
| F.52766 TOTAL LOAD 5200 lbs DISTRIBUTED THUS:- 400lbs | 400lbs | 400lbs | 500lbs | 500lbs | 500lbs | 500lbs | 500lbs | 300lbs | 300lbs 1 — OR — 4. 2 — ORIGINAL TIE RODS. 3 — OR — 5. VIEW OF FRAME STIFFENERS FITTED ON NOS 4 & 5. FOR FURTHER PARTICULARS SEE DRAWING F.52767 LENGTH OF FRAME SCALE 1/12. DEFLECTION IN INCHES. SCALE 5/1. DEFLECTIONS. TABLE DATA: TYPE | A | B | C | D | E | F | G | H | I | J | K | L | M | N | DESCRIPTION 1 | - | .180 | .325 | .405 | .540 | .595 | .665 | .670 | .665 | .645 | .600 | .530 | .350 | .180 | WITHOUT TIE RODS OR STIFFENERS. 2 | - | .130 | .250 | .265 | .414 | .425 | .470 | .493 | .495 | .497 | .482 | .329 | .325 | .203 | ORIGINAL TIE RODS ONLY 3 | - | .120 | .240 | .340 | .376 | .410 | .435 | .450 | .450 | .440 | .480 | .360 | .180 | .150 | MODIFIED TIE RODS ONLY. 4 | - | .145 | .265 | .380 | .460 | .520 | .555 | .565 | .540 | .510 | .455 | .390 | .260 | .100 | NO TIE RODS STIFFENERS ONLY. 5 | - | .130 | .175 | .230 | .350 | .330 | .365 | .410 | .400 | .380 | .370 | .385 | .295 | .225 | MODIFIED TIE RODS & FRAME STIFFENERS. Handwritten Note: Cd. 4H 3-10-23 FRAME DEFLECTIONS 20 H.P. SCALE 1/12. Stamp: ROLLS-ROYCE, LIMITED PRINT ROOM. 17 OCT 1923 DERBY F.52766 | ||
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).