Count the seconds that a locomotive takes to cross a module...
then use this chart to calculate the Speed

Seconds                    4' Module                 6' Module
     1                                437                          655
     2                                218                          327
     3                                146                          218
     4                                109                          164
     5                                  87                          131
     6                                  73                          103
     7                                  62                            94
     8                                  55                            82
     9                                  49                            73
    10                                 44                            65
    11                                 40                            60
    12                                 36                            55
    13                                 34                            50
    14                                 31                            47
    15                                 29                            44
    16                                 27                            41
    17                                 26                            39
    18                                 24                            36
    19                                 23                            34
    20                                 22                            33
    21                                 21                            31
    22                                 20                            30
    23                                 19                            28
    24                                 18                            27
    25                                 17                            26
    26                                 17                            25
    27                                 16                            24
    28                                 16                            23
    29                                 15                            23
    30                                 15                            22
    35                                 12                            19
    40                                 11                            16
    45                                 10                            15
    50                                   9                            13
    55                                   8                            12
    60                                   7
 

   Nuts and Bolts
------------------------------------- Last update:April 4, 2001
 Questions?  Comments?