Steve Kesterton comments “i commuted from Bletchley to Euston for several years. The rush hour Non stoppers from Euston to Leighton and Bletchley saw some fantastic runs.

A mistimed Old Linslade phot of 310086 Euston bound passing 310077 at Old Linslade on February 12th 1983
Below is one of the few 310 logs your webmaster made, a good run with plenty 75mph plus running!!!
1506 Northampton – Euston 086 270988
310 unit nominally restricted to 75mph max
M/P Station Sched Arr/Dep Actual Arr/Dep/Passing Var Speed
40.25 Leighton Buzzard 1536 1540.29 +4 ——-
40 1541.10 18.43
39 1542.24 49.99
38 Ledburn Jn 1543.21 63.15
37 1544.14 67.92
36 1545.03 73.46
35 1545.50 76.59
34 1546.37 76.59
33 1547.23 78.26
32 1548.08 79.99
31 Tring 1548.53 79.99
30 1549.36 83.72
28 Berkhamsted 1551.00 85.71
27 1551.44 81.81
26 1552.26 85.71
24.75 1554.03 83.33
24 1554.35 84.37
23 1555.18 83.72
22 1556.01 83.72
17 Watford Jn 1558.57 76.27
16 1559.41 81.81
15 1600.26 79.99
14 1601.12 78.26
13 1601.55 83.72
12 1602.37 85.71
11 Harrow 1603.19 85.71
10 1604.02 83.72
9 1604.46 81.81
8 1605.29 83.72
7 1606.11 85.71
6 1606.56 79.89
4.75 1607.51 81.81
4 1608.24 81.81
3 1609.07 83.72
1 1611.33 49.3
0 Euston 1616 1615.33 -0.5 14.99