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).
Winding table for 20 HP or 40/50 HP armatures.
| Identifier | ExFiles\Box 68\4\ scan0241 | |
| Date | 11th April 1929 | |
| X1640 11.4.29. WINDING TABLE. 20 H.P. OR 40/50 H.P. ARMATURES. 28/56/4. COM. BARS. | CONDUCTORS. | COM. BARS. | CONDUCTORS. | COM. BARS. ------------------------------------------------------------------------ 1 | 1 26 | 2 | 55 80 | 3 | 109 24 | 4 | 53 78 | 5 | 107 22 | 6 | 51 76 | 7 | 105 20 | 8 | 49 74 | 9 | 103 18 | 10 | 47 72 | 11 | 101 16 | 12 | 45 70 | 13 | 99 14 | 14 | 43 68 | 15 | 97 12 | 16 | 41 66 | 17 | 95 10 | 18 | 39 64 | 19 | 93 8 | 20 | 37 62 | 21 | 91 6 | 22 | 35 60 | 23 | 89 4 | 24 | 33 58 | 25 | 87 2 | 26 | 31 56 | 27 | 85 110 | 28 | 29 54 | 29 ------------------------------------------------------------------------ 29 | 83 108 | 30 | 27 52 | 31 | 81 106 | 32 | 25 50 | 33 | 79 104 | 34 | 23 48 | 35 | 77 102 | 36 | 21 46 | 37 | 75 100 | 38 | 19 44 | 39 | 73 98 | 40 | 17 42 | 41 | 71 96 | 42 | 15 40 | 43 | 69 94 | 44 | 13 38 | 45 | 67 92 | 46 | 11 36 | 47 | 65 90 | 48 | 9 34 | 49 | 63 88 | 50 | 7 32 | 51 | 61 86 | 52 | 5 30 | 53 | 59 84 | 54 | L L | 55 | 3 28 | 56 | 57 82 | 1 | ||