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Continental Garden Trains

For the average enthusiast of trains in garden scale.
 
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 Scale speeds?

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mikeyh

mikeyh

Location : Dordogne France

Scale speeds? Empty
PostSubject: Scale speeds?   Scale speeds? EmptySun Apr 05, 2009 7:28 am

I was reading a book last night about french railways and it stated that the lesser radii of tramway/departmental trains could be applied if the train's speed was kept under 25 mph.

I have neither the knowledge nor the inclination to work it out but is a scale speed of 25 mph in a g scale loco possible without burning out a motor and what about live steam?

Mikey
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pjti



Location : Galizano, nr Santander, Nth Spain

Scale speeds? Empty
PostSubject: Re: Scale speeds?   Scale speeds? EmptySun Apr 05, 2009 1:20 pm

Couldn't resist the challenge guys Does it make sense ? And don't dare ask fer metric equivalents.





[tr][tr][][tr][/td]
Full size mph

Speed in feet per sec by scale





202225293243

10.070.070.060.050.050.03

20.150.130.120.10.090.07

30.220.20.180.150.140.1

40.290.270.240.20.180.14

50.370.330.290.250.230.17

100.740.670.590.510.460.34

151.110.880.760.690.51

201.471.341.181.010.920.68

251.841.671.471.271.150.85

302.2121.761.521.381.03

































































1 mile = 1760 yds = 5280 ft
1 mph = 5280 ft/h = 1.47 ft/sec
5280(FT) / 3600(SEC) = 1.47 FT / SEC


Last edited by pjti on Sun Apr 05, 2009 1:46 pm; edited 2 times in total
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pjti



Location : Galizano, nr Santander, Nth Spain

Scale speeds? Empty
PostSubject: Re: Scale speeds?   Scale speeds? EmptySun Apr 05, 2009 1:29 pm

mikeyh wrote:
I was reading a book last night about french railways and it stated that the lesser radii of tramway/departmental trains could be applied if the train's speed was kept under 25 mph.

I have neither the knowledge nor the inclination to work it out but is a scale speed of 25 mph in a g scale loco possible without burning out a motor and what about live steam?

Mikey

So Mikey I reckon that your 25mph comes out at AROUND 18 - 22 inches per second.
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mikeyh

mikeyh

Location : Dordogne France

Scale speeds? Empty
PostSubject: Re: Scale speeds?   Scale speeds? EmptySun Apr 05, 2009 2:04 pm

thanks Patrick. i tried to work it out three times and got a different answer each time!!

mikey
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pjti



Location : Galizano, nr Santander, Nth Spain

Scale speeds? Empty
PostSubject: Re: Scale speeds?   Scale speeds? EmptySun Apr 05, 2009 2:11 pm

You didn't ask !!

Full size kmh

Speed in cms per sec by scale





202225293243

11.391.261.110.960.870.65

22.782.532.221.921.741.29

34.173.793.332.872.61.94

45.565.054.443.833.472.58

56.956.315.564.794.343.23

1013.8912.6311.119.588.686.46

1520.8418.9416.6714.3713.029.69

2027.7825.2522.2219.1617.3612.92

2534.7331.5727.7823.9521.716.15

3041.6737.8833.3428.7426.0419.38










1 kph = 1000 metres per 3600 seconds







cms per sec27.78






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mikeyh

mikeyh

Location : Dordogne France

Scale speeds? Empty
PostSubject: Re: Scale speeds?   Scale speeds? EmptySun Apr 05, 2009 2:18 pm

thats a very useful chart!

mikey
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Carl Hibbs
Admin
Carl Hibbs

Location : Haute Normandie - visitors welcome

Scale speeds? Empty
PostSubject: Re: Scale speeds?   Scale speeds? EmptySun Apr 05, 2009 3:21 pm

Yes it is useful, thanks.

You can make nearly all live steam locos go very slowly even without radion control.

I try and run mine at realistic speeds to my eye. I have never actually measured it but now I have the table I will do just that at the next exhibition!

Here are some clips of my machines running quite slowly/realistically......I think.