# Beep! Beep!

## Which way did they go?

## How fast were they going?

## How many were there?

## I must find them--

## I'm their leader!!

The table below gives some numbers that will allow you to estimate the speed of your trains. The numbers are keyed to typical module lengths to make things easier.

# Which Way Did They Go

Distance | Real World Distance | N World Distance | Rounded | Seconds at 60 scale MPH |

-------------------- | -------------------- | -------------------- | --------------- | -------------------- |

Mile | 5280' | 33' | 32' | 60 |

Half-mile | etc. | 16.5' | 16' | 30 |

Quarter-mile | etc. | 8.25' | 8' | 15 |

Eighth-mile | | 4.125' | 4' | 7-1/2 |

Sixteenth-mile | | 2.0625' | 2' | 3-3/4 |

Thirty-second-mile | | 1.03125' | 1' | 1-7/8 |

# How Fast Were They Going

Speed Miles/Hour | x 5280 Feet/Mile | /(3600 Seconds/Hour) | | Scale Feet/Second | Seconds/SingleModule | Seconds/QuadModule |

-------------------- | -------------------- | -------------------- | -------- | -------------------- | -------------------- | -------------------- |

80 MPH | = 422400 ft/hour | = 117 ft/sec | /160 | 0.73125 | 1 module in 1.4 sec | 4' in 5.47 sec |

75 MPH | = 396000 ft/hour | = 110 ft/sec | /160 | 0.68750 | 1 module in 1.5 sec | 4' in 5.81 sec |

60 MPH | = 316800 ft/hour | = 88 ft/sec | /160 | 0.55000 | 1 module in 1.8 sec | 4' in 7.27 sec |

45 MPH | = 237600 ft/hour | = 66 ft/sec | /160 | 0.41250 | 1 module in 2.5 sec | 4' in 9.7 sec |

30 MPH | = 158400 ft/hour | = 44 ft/sec | /160 | 0.27500 | 1 module in 3.7 sec | 4' in 14.54 sec |

15 MPH | = 79200 ft/hour | = 22 ft/sec | /160 | 0.13750 | 1 module in 7.4 sec | 4' in 29.09 sec |

| | | | | 310mm=12.205"=1.02' | |