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Scalefour Society Resources |
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Prototype Turnout Data |
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| Table and Data provided by Brian Oldford | |
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Scalefour Society Resources |
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Prototype Turnout Data |
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| Table and Data provided by Brian Oldford | |
Page uploaded 27th January 2000 [DL], updated 25 April 2003 [KN]
The following Table was generously provided in unsolicited form by Brian Oldford with
the request that it be placed in the public domain and made available to all interested
modellers. The data contained is as provided by him and has been converted into a Web
usable form from an Excel .xls spreadsheet file.
(Note: This table is reproduced as Table 7 in "British
Railway Track Bullhead Supplement" published by The Permanent Way Institution in
1991, this is an excellent reference for modellers and should still be available from the
Institution, 4 Reginald Road, Wombwell, Barnsley, S. Yorks, S73 0HP) -KN.
STANDARD LEADS OF FORMER RAILWAYS - BULL HEAD TRACK |
||||||||||||||||
| R = RADIUS OF TURNOUT CURVE. L= LEAD FROM TOE TO NOSE. A=LENGTH OF STRAIGHT. | ||||||||||||||||
| Switch | Crossing | G.W.R. | L.M.S. | L.N.E.R. | L.P.T.B. | S.R | ||||||||||
| R | L | A | R | L | A | R | L | A | R | L | A | R | L | A | ||
| A |
4 | 130' | 42' 10 25/32" | 130' | 42' 10 3/4" | 130' | 42' 10 3/4" | |||||||||
| 4 1/2 | 168' | 45' 1" | 168' | 45' 1" | 168' | 45' 1" | ||||||||||
| 5 | 212' | 47' 1 3/4" | 212' | 47' 1 3/4" | 212' | 47' 1 3/4" | 212' | 46' 11 1/2" | ||||||||
| 5 1/2 | 264' | 49' 1 13/32" | 264' | 49' 1 1/2" | 264' | 49' 1 1/2" | 264' | 49' 0" | ||||||||
| 6 | 326' | 50' 11 13/16" | 310' | 50' 7" | 1' 0 1/2" | 326' | 50' 7" | 326' | 50' 11 1/4" | |||||||
| 6 1/2 | 398' | 52' 9 3/16" | 398' | 52' 9 1/4" | 398' | 52' 9 1/4" | 398' | 52' 9 1/2" | ||||||||
| 7 | 482' | 54' 5" | 482' | 54' 5" | 482' | 54' 5" | 482' | 54' 5" | ||||||||
| 7 1/2 | 482' | 54' 7 7/8" | 4' 9 11/16" | 482' | 54' 8 1/4" | 482' | 54' 7 3/4" | 4' 9 11/16" | 579' | 56' 1" | ||||||
| 8 | 482' | 55' 1 5/32" | 9' 2 15/16" | 482' | 55' 1 1/2" | 482' | 55' 1 1/2" | 9' 2 15/16" | 694' | 57' 8 1/4" | ||||||
| B |
6 | 310' | 58' 1" | 312' | 57' 1 1/32" | 312' | 57' 1" | 312' | 57' 1" | 313' | 56' 9 1/8" | |||||
| 6 1/4 | 340' | 59' 2 3/4" | ||||||||||||||
| 6 1/2 | 371' | 60' 3 1/4" | 374' | 59' 2 3/4" | 374' | 59' 2 1/2" | 374' | 59' 2 1/2" | 375' | 58' 11 7/8" | ||||||
| 6 3/4 | 405' | 61' 4 5/8" | ||||||||||||||
| 7 | 439' | 62' 5 5/8" | 445' | 61' 3 3/32" | 422' | 60' 7 3/4" | 445' | 61' 3" | 445' | 61' 1 1/2" | ||||||
| 7 1/4 | 478' | 63' 5 7/8" | ||||||||||||||
| 7 1/2 | 516' | 64' 6 1/4" | 524' | 63' 2 21/32" | 524' | 63' 2 3/4" | 524' | 63' 2 3/4" | 524' | 63' 1 3/4" | ||||||
| 7 3/4 | 560' | 65' 6 1/4" | ||||||||||||||
| 8 | 603' | 66' 6" | 613' | 65' 1 3/8" | 613' | 65' 1 1/2" | 613' | 65' 1 1/2" | 612' | 65' 1 1/2" | ||||||
| 8 1/4 | 652' | 67' 5 1/2" | ||||||||||||||
| 8 1/2 | 702' | 68' 5" | 613' | 65' 3 3/16" | 4' 8 5/8" | 713' | 66' 11 3/4" | |||||||||
| 9 | 613' | 65' 8 11/32" | 9' 1 1/2" | 613' | 65' 8 1/4" | 9' 8" | 613' | 65' 8 1/4" | 9' 1 1/4" | 826' | 68' 9 1/2" | |||||
| 10 | 613' | 67' 1 25/32" | 17' 3 5/32" | 613' | 67' 1 3/4" | 17' 10 3/4" | 613' | 67' 1 3/4" | 17' 3 3/4" | 1101' | 72' 2 7/8" | |||||
| 11 | 613' | 69' 2 1/4" | 24' 8 7/16" | 613' | 69' 2 1/4" | 24' 10 1/4" | ||||||||||
| C |
7 | 416' | 69' 3 13/16" | 416' | 69' 3 3/4" | 415' | 69' 5 1/2" | |||||||||
| 7 1/2 | 485' | 71' 6 3/32" | 485' | 71' 6" | 485' | 71' 7 3/4" | ||||||||||
| 8 | 558' | 74' 11 1'4" | 562' | 73' 7 1/2" | 562' | 73' 7 1/2" | 561' | 73' 9 1/2" | 563' | 73' 5 1/2" | ||||||
| 8 1/4 | 598' | 76' 0 1/8" | ||||||||||||||
| 8 1/2 | 641' | 77' 1" | 647' | 75' 7 5/8" | 647' | 75' 6 3/4" | ||||||||||
| 8 3/4 | 686' | 78' 1 1'2" | ||||||||||||||
| 9 | 732' | 79' 2" | 740' | 77' 7 15/16" | 740' | 77' 8" | 740' | 77'8" | 740' | 77' 7 1/4" | ||||||
| 9 1/2 | 832' | 81' 2 1/8" | 844' | 79' 7 1/8" | 842' | 79' 6 3/4" | ||||||||||
| 10 | 942' | 83' 1 5/8" | 960' | 81' 5" | 955' | 81' 6 1/4" | 960' | 81' 5" | 960' | 81' 5" | ||||||
| 10 1/2 | 1062' | 85' 0 1/2" | 960' | 81' 7 11/32" | 4' 6 21/32" | 1082' | 83' 3 1/8" | |||||||||
| 11 | 960' | 81' 11 1/2" | 9' 0 17/32" | 918' | 81' 6 1/4" | 10' 5 1/2" | 960' | 81' 11 1/2" | 9' 0 17/32" | 1219' | 85' 0 7/8" | |||||
| 12 | 960' | 83' 2 11/32" | 17' 5 9/16" | 960' | 83' 2 1/4" | 18' 2 1/2" | 960' | 83' 2 1/2" | 17' 5 9/16" | 1541' | 88' 6 1/4" | |||||
| 14 | 960' | 85' 4 3/4" | 32' 8" | 960' | 87' 1 3/4" | 32' 8 3/4" | 2440' | 94' 10 5/8" | ||||||||
| D |
8 | 545' | 80' 6 3/16" | 545' | 80' 6 1/4" | 545' | 80' 6 1/4" | 544' | 80' 5 3/4" | |||||||
| 9 | 707' | 85' 2" | 707' | 85' 2" | 707' | 85' 2" | 705' | 85' 1 5/8" | ||||||||
| 10 | 868' | 93' 6 3/8" | 896' | 89' 6 29/32" | 876' | 89' 1 3/4" | 10 1/2" | 896' | 89' 6 3/42 | 893' | 89' 8 1/2" | |||||
| 10 1/2 | 969' | 95' 8 1/2" | 1003' | 91' 8 5/16" | 999' | 91' 10" | ||||||||||
| 11 | 1077' | 97' 10 1/4" | 1118' | 93' 9" | 1120' | 93' 9" | 1118' | 93' 9" | 1114' | 93' 11" | ||||||
| 11 1/2 | 1194' | 99' 11 3/8" | 1279' | 95' 11 1/4" | ||||||||||||
| 12 | 1320' | 102' 0" | 1379' | 97' 8 1/2" | 1219' | 96' 6 1/2" | 1379' | 97' 8 1/2" | 1379' | 97' 8 1/2" | ||||||
| 12 1/2 | 1455' | 103' 11 7/8" | ||||||||||||||
| 13 | 1600' | 105' 11 1/2" | 1683' | 101' 5 7/8" | ||||||||||||
| 14 | 1379' | 99' 2 9/16" | >17' 8 3/4" | 1379' | 99' 2 1/2" | 17' 8 3/4" | 1379' | 99' 2 1/2" | 17' 8 3/4" | 2041' | 105' 1 1/4" | |||||
| 16 | 1379' | 102' 9 3/16" | 33' 5 3/8" | 1379' | 102' 9 1/4" | 33' 5 1/2" | 1379' | 102' 9 1/4" | 33' 5 3/8" | 2971' | 111' 10" | |||||
| E |
10 | 834' | 104' 10 13/32" | 806' | 104' 1 3/4" | 1' 3 3/4" | 834' | 104 10 1/2" | 833' | 104' 10 1/2" | ||||||
| 11 | 1027' | 109' 6 1/2" | 1027' | 109' 6 1/2" | 1027' | 109' 6 1/2" | 1026' | 109' 6 3/8" | ||||||||
| 12 | 1246' | 114' 0 3/8" | 1121' | 111' 8 1/2" | 4' 7 3/4" | 1246' | 114' 0 1/2" | 1243' | 114' 1 3/4" | |||||||
| 13 | 1491' | 118' 5 1/'2" | ||||||||||||||
| 14 | 1774' | 122' 5 3/4" | 1774' | 122' 5 3/4" | 1774' | 122' 5 3/4" | 1771' | 122' 7 1/4" | ||||||||
| 15 | 2087' | 126' 7" | ||||||||||||||
| 16 | 2446' | 130' 3 5/8" | 2446' | 130' 3 1/2" | 2446' | 130' 3 1/2" | 2449' | 130' 3 3/4" | ||||||||
| F |
16 | 2255' | 146' 7 9/16" | 2253' | 151' 3 1/4" | |||||||||||
| 17 | 2591' | 155' 5 3/4" | ||||||||||||||
| 18 | 2963' | 154' 11 3/8" | 2693' | 159' 6 3/4" | ||||||||||||
| 20 | 3825' | 162' 5 13/16" | 3770' | 168' 5 1/2" | ||||||||||||
| 30' |
13 | 1504' | 127' 8" | |||||||||||||
| 13 1/2 | 1626' | 130' 10 1/2" | ||||||||||||||
| 14 | 1752' | 134' 0 3/4" | ||||||||||||||
| 14 1/2 | 1884' | 137 2 5/8" | ||||||||||||||
| 15 | 2021' | 140' 4" | ||||||||||||||
| 15 1/2 | 2163' | 143' 5" | ||||||||||||||
| 16 | 2311' | 146' 5 5/8" | ||||||||||||||
| 16 1/2 | 2464' | 149' 6" | ||||||||||||||
| 17 | 2623' | 152' 5 3/4" | ||||||||||||||
| 17 1/2 | 2788' | 155' 5 3/8" | ||||||||||||||
| 18 | 2958' | 158' 4 1/2" | ||||||||||||||
| 18 1/2 | 3134' | 161' 3 3/8" | ||||||||||||||
| 19 | 3316' | 164' 1 3/4" | ||||||||||||||
| 19 1/2 | 3504' | 166' 11 7/8" | ||||||||||||||
| 20 | 3698' | 169' 9 3/4" | ||||||||||||||
This page maintained by Keith Norgrove - webmaster@scalefour.org
