# Scale speed

Discussion in 'N / Z Scale Model Trains' started by SD90, Sep 5, 2004.

1. ### SD90Active Member

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Does anyone have a chart for scale speeds? I'm looking for something that goes up in 5 MPH incriments. It would be good if it were only about 2 or 3 feet long also, so you could measure your speed often and quickly. Thanks in advance!
2. ### Will_annandActive Member

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Here is a quick one.

Speed Inches per second
MPH = N - HO
1 = 0.11 - 0.2
2 = 0.22 - 0.4
5 = 0.55 - 1.01
10 = 1.10 - 2.02
15 = 1.65 - 3.03
20 = 2.20 - 4.04
25 = 2.75 - 5.05
30 = 3.30 - 6.06
35 = 3.85 - 7.07
40 = 4.40 - 8.08
45 = 4.95 - 9.09
50 = 5.50 - 10.1
55 = 6.05 - 11.1
60 = 6.60 - 12.1
70 = 7.70 - 14.1
80 = 8.80 - 16.2
90 = 9.90 - 18.2
100 = 11.0 - 20.2
110 = 12.1 - 22.2
120 = 13.2 - 24.2
150 = 16.5 - 30.3
3. ### SD90Active Member

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Thanks! That's just what I was looking for Will!
4. ### Bill PontinMember

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Mike, divide the feet traveled by the seconds it took and multiply by 109. I.E. four foot of module in 5 seconds = .8 times 109 = 87.2 scale miles per hour.
5. ### Bill PontinMember

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Mike going to see if I can attach a chart I made up for our clubs next show. Give the children something to do other than ask "is that as fast as that train will go?"

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7. ### SD90Active Member

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That's exactly what I needed Sandro, thanks! I went down and calculated that I've got all my engines set so maximum on the Digitrax throttle is 40 MPH. I usually say that 85 is the fastest you can go, which is about 35MPH. It's right where I wanted it, since the maximum speed on the real Laggan Sub is 40MPH. Thanks again Sandro.
8. ### Red ArrowNew Member

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Guys, I saw a scale model train speedometer that works for any scale at the last GSMTS. Check out the following website. www.trainspeed.com. This item appears to be real easy to install and was a real attention getter. I should know, I purchased a unit.

Red Arrow
9. ### engineshopMember

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I got the Trainspeed unit as well to match the speeds of different engines and manufacturers. My next step is to hook up my computer interface to a small circle to get the DCC speed table going. It is maybe more expensive than a stop watch but for DCC it really cuts down the time to perfectly match the speed table.

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