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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).
Table of revised weights and specifications for various radiator matrices.

Identifier  ExFiles\Box 94\3\  scan0007
Date  25th March 1935
  
4340
Hs{Lord Ernest Hives - Chair}/Std.1/KW.25.3.35.

REVISED MATRIX WEIGHTS.

| Matrix | Weight lbs. | Frontal Area Sq.ins. | Depth Ins. | Vol. Cu.ins. | Wt./ Unit Vol. lbs/ Cu.ins. |
|---|---|---|---|---|---|
| Bentley old Std. Marston Mark III. | 38 | 470 | 3.305 | 1553 | .0245 |
| Bentley new Std. Marston Mark V | 31.5 | 470 | 2.285 | 1073 | .0294 |
| Central Mounting Wings and Rad. - Bentley Rad. Marston Mark V.{VIENNA} | 28.25 | 401 | 2.285 | 916 | .0309 |
| 6" shorter Matrix, Bentley Marston Mark V.{VIENNA} | | 356 | 2.285 | 813 | |
| Std. Shape Bentley Harrison Vee (U.S.A.) | 26 | 470 | 2.060 | 969 | .0269 |
| Std. 20/25 Marston Mark III. | 45 | 560 | 3.305 | 1850 | .0243 |
| 20/25 Std. Shape Marston Mark V.{VIENNA} | 35.50 | 560 | 2.285 | 1280 | .0278 |
| SpectreCodename for Phantom III - E.85830 (1st type) Harrison Vee (U.S.A.) | 48 | 587 | 3.305 | 1940 | .0248 |
| SpectreCodename for Phantom III - Latest Type Marston Mark V.{VIENNA} | 58 | 610 | 3.305 | 2015 | .0288 |
  
  


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