Rolls-Royce Archives
         « Prev  Box Series  Next »        

Liner bore dimension measurements for a Phantom III engine, new and after a 10,000-mile road test.


Identifier  ExFiles\Box 91\3\  scan0048
Date  5th August 1936
  
PHANTOM III UNIT 9 - LINER BORE DIMENSIONS - NEW & AFTER 10,000 MILES ROAD TEST

LINERS: E.87890 (GASHED TYPE)
Matl: CENTRI-CAST IRON
DRA'G SIZE BORE = 3.250"

DIAGRAM LABELS:
6.137"
.500"
.500"
CROWN
CENTRE
GLAND MOUTH.
AA {D. Abbot Anderson} AT RT. ANGLES TO C.SHAFT
BB PARALLEL TO C.SHAFT

NOTE!
+ DENOTES AN INCREASE OF ORIGINAL DIMENSION.
- DENOTES A DECREASE OF ORIGINAL DIMENSION.

"A" SIDE
LINER | WHEN | DIAMETER AT CROWN | DIAMETER AT CENTRE | DIAMETER AT GLAND | DIAMETER AT MOUTH
| | AA {D. Abbot Anderson} | BB | OVALITY | AA {D. Abbot Anderson} | BB | OVALITY | AA {D. Abbot Anderson} | BB | OVALITY | AA {D. Abbot Anderson} | BB
A1 | NEW. | 3.2505 | 3.2505 | NIL. | 3.2507 | 3.2507 | NIL. | 3.2505 | 3.2506 | .0001 | 3.251 | 3.251
| AFTER| 3.2508 | 3.2500 | .0008 | 3.2513 | 3.2500 | .0013 | 3.2501 | 3.2494 | .0007 | 3.2506| 3.251
| VAR. | +.0003 | -.0005 | | +.0006 | -.0007 | | -.0004 | -.0012 | | |
A2 | NEW. | 3.2506 | 3.2506 | NIL. | 3.2518 | 3.2515 | .0003 | 3.2511 | 3.2489 | .0022 | 3.2503| 3.2503
| AFTER| 3.2507 | 3.2501 | .0006 | 3.2529 | 3.2496 | .0033 | 3.2511 | 3.2489 | .0022 | 3.2518| 3.2515
| VAR. | +.0001 | -.0005 | | +.0011 | -.0019 | | - | - | | +.0015| +.0012
A3 | NEW. | 3.2511 | 3.2506 | .0005 | 3.2512 | 3.2503 | .0009 | 3.2504 | 3.2502 | .0002 | 3.2503| 3.2503
| AFTER| 3.2511 | 3.2506 | .0005 | 3.2512 | 3.2503 | .0009 | 3.2503 | 3.2504 | .0001 | 3.2505| 3.2505
| VAR. | - | - | | - | - | | -.0001 | +.0002 | | +.0002| +.0002
A4 | NEW. | 3.251 | 3.251 | NIL. | 3.251 | 3.251 | NIL. | 3.2503 | 3.2505 | .0002 | 3.2508| 3.2508
| AFTER| 3.2511 | 3.2509 | .0002 | 3.2513 | 3.2503 | .0010 | 3.250 | 3.2497 | .0003 | 3.250 | 3.250
| VAR. | +.0001 | -.0001 | | +.0002 | -.0008 | | -.0003 | -.0008 | | -.0008| -.0008
A5 | NEW. | 3.2513 | 3.2512 | .0001 | 3.252 | 3.2514 | .0006 | 3.2512 | 3.252 | .0008 | 3.2516| 3.2516
| AFTER| 3.2517 | 3.2514 | .0003 | 3.2524 | 3.2506 | .0018 | 3.2512 | 3.252 | .0008 | 3.252 | 3.252
| VAR. | +.0004 | +.0002 | | +.0004 | -.0008 | | - | - | | +.0004| +.0004
A6 | NEW. | 3.2512 | 3.2508 | .0004 | 3.2514 | 3.2503 | .0011 | 3.2511 | 3.2496 | .0015 | 3.2506| 3.2506
| AFTER| 3.2513 | 3.2503 | .0010 | 3.2524 | 3.2503 | .0021 | 3.2503 | 3.2496 | .0007 | 3.2514| 3.2514
| VAR. | +.0001 | -.0005 | | +.0010 | - | | -.0008 | - | | +.0008| +.0008

"B" SIDE
LINER | WHEN | DIAMETER AT CROWN | DIAMETER AT CENTRE | DIAMETER AT GLAND | DIAMETER AT MOUTH
| | AA {D. Abbot Anderson} | BB | OVALITY | AA {D. Abbot Anderson} | BB | OVALITY | AA {D. Abbot Anderson} | BB | OVALITY | AA {D. Abbot Anderson} | BB
B1 | NEW. | 3.2508 | 3.2507 | .0001 | 3.2518 | 3.2515 | .0003 | 3.2509 | 3.2506 | .0003 | 3.2511| 3.2511
| AFTER| 3.2512 | 3.2505 | .0007 | 3.2523 | 3.2511 | .0012 | 3.2512 | 3.2504 | .0008 | 3.2517| 3.2517
| VAR. | +.0004 | -.0002 | | +.0005 | -.0004 | | +.0003 | -.0002 | | +.0006| +.0006
B2 | NEW. | 3.2504 | 3.2501 | .0003 | 3.2516 | 3.2495 | .0021 | 3.2502 | 3.251 | .0008 | 3.2506| 3.2506
| AFTER| 3.2508 | 3.2502 | .0006 | 3.2519 | 3.2495 | .0024 | 3.250 | 3.251 | .0010 | 3.2506| 3.2506
| VAR. | +.0004 | +.0001 | | +.0003 | - | | -.0002 | - | | - | -
B3 | NEW. | 3.2518 | 3.2507 | .0011 | 3.2521 | 3.2502 | .0019 | 3.250 | 3.2503 | .0003 | 3.253 | 3.253
| AFTER| 3.2511 | 3.2508 | .0003 | 3.2526 | 3.2502 | .0024 | 3.250 | 3.2501 | .0001 | 3.2532| 3.253
| VAR. | -.0007 | +.0001 | | +.0005 | - | | - | -.0002 | | +.0002| -
B4 | NEW. | 3.2503 | 3.2504 | .0001 | 3.2513 | 3.250 | .0013 | 3.251 | 3.254 | .003 | 3.251 | 3.2532
| AFTER| 3.2507 | 3.2503 | .0004 | 3.2513 | 3.250 | .0013 | 3.2504 | 3.251 | .0006 | 3.251 | 3.251
| VAR. | +.0004 | -.0001 | | - | - | | -.0007 | -.0029 | | - | -.0022
B5 | NEW. | 3.2504 | 3.2503 | .0001 | 3.2515 | 3.250 | .0015 | 3.251 | 3.2499 | .0011 | 3.2503| 3.2503
| AFTER| 3.2499 | 3.2505 | .0006 | 3.2506 | 3.2498 | .0008 | 3.251 | 3.2495 | .0015 | 3.2503| 3.2503
| VAR. | -.0005 | +.0002 | | -.0009 | -.0002 | | - | -.0004 | | - | -
B6 | NEW. | 3.2508 | 3.2505 | .0003 | 3.2505 | 3.2502 | .0003 | 3.250 | 3.2493 | .0007 | 3.2503| 3.2503
| AFTER| 3.2508 | 3.2502 | .0006 | 3.2505 | 3.2502 | .0003 | 3.250 | 3.2493 | .0007 | 3.2503| 3.2503
| VAR. | - | -.0003 | | - | - | | - | - | | - | -
  
  
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).


Copyright Sustain 2026, All Rights Reserved.    whatever is rightly done, however humble, is noble
An unhandled error has occurred. Reload 🗙