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With the talk of scale wieght...


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I try not to worry about it much. I just figure if Chip Foose can rebuild a car bumper to bumper, rubber to roof in six days, I should be able to do the same in 1:25 in a similar time frame. Oddly... doesn't seem to always work that way.

Didn't many of his "rebuilds" consist of custom paint and wheels?

(Yeah, I'm not a big fan)... :P

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I try not to worry about it much. I just figure if Chip Foose can rebuild a car bumper to bumper, rubber to roof in six days, I should be able to do the same in 1:25 in a similar time frame. Oddly... doesn't seem to always work that way.

If you had 30 guys working double shifts on your model, yeah, it would be done in a day.

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Didn't many of his "rebuilds" consist of custom paint and wheels?

(Yeah, I'm not a big fan)... :P

It was more than that, they would strip down the complete car, rebuild or replace anything damaged and at the same time perform sometimes elaborate custimising, and still have it all done in 7 days. If you have never worked on rebuilding a real vintage automobile you have no Idea how insane that time frame is.

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LOL! For a minute I thought you meant how fast would a 1/25th scale would have to go in order to travel 1 mile!

I feel the math coming on again! HA!

I know the train modelers are always synchronizing their trains to travel at the right scale speed.

Actually a lot of model railroaders use scale time as well. If they are trying to keep some kind of a time table to emulate operations this is the way to go.

http://www.model-railroad-infoguy.com/fast-clock.html

As for speed, I have N-scale trains and I just go by eye. Running full out would emulate a bullet train on steroids. :blink:

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I'm no math whiz, but time would be the one constant that doesn't change by scale. Speed isn't the same as time, of course.

Let's say you wanted to emulate the following in 1/25:

Kitty O'Neil in 1977 recorded the quickest quarter mile elapsed time of 3.22 seconds at 396 mph.

You'd set up a track that's 1/25 of a quarter mile.

Then you'd try to control your model so it covers the distance in 3.22 seconds. What you'd see would be the scale equivalent of going 396 mph.

I'll leave to someone else to dig up the measurements or a better way of doing it.

Another way to measure would be to measure wheel rpms for 1/1 and 1/25. If the 1/1 has so many rpm at 60 mph, the 1/25 version should have the same (assuming it's reasonably accurate in scale).

Edited by sjordan2
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Ok, time is not scalable, it's a constant, right?

So if a 1/1 car covers one mile in 60 seconds, it's traveling at 60 mph (a mile every minute).

If a 1/25 car covers a "scale" mile (1/25th of a mile) in the same 60 seconds, it's covering 1/25 of a mile every minute, or a full mile in 25 minutes. So 60 mph in 1/25 scale is 2.4 mph?

Right?

Edit: Didn't see Junkman's post... he already covered it.

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My turn

1 second in 1:1 = 1 second in 1:25 scale (time remains the same)

3300 lbs in 1:1 = .2122lbs or 3.38oz in 1:25 scale (weight is 3 dimensional, therefore *25 cubed)

60 MPH in 1:1 = 1,500 MPH in 1:25 scale (distance is 1 dimensional, therefore *25)

Edited by Alyn
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Ok, time is not scalable, it's a constant, right?

So if a 1/1 car covers one mile in 60 seconds, it's traveling at 60 mph (a mile every minute).

If a 1/25 car covers a "scale" mile (1/25th of a mile) in the same 60 seconds, it's covering 1/25 of a mile every minute, or a full mile in 25 minutes. So 60 mph in 1/25 scale is 2.4 mph?

Right?

Edit: Didn't see Junkman's post... he already covered it.

You get a gold star, Harry. *

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OK. I think my point got lost. Lets say you have a diorama. Take and put it on a automatic turn table with a set speed of how fast the earth is turning scaled down to 1/25. Wouldn't you get a few revolutions before a 1:1 day is out? I'm thinking there's twelve months in a year for us. So if you take 25 out of 1/25 and divide it by twelve you get a little over two years in scale to our one year. Does that sound about right? I'm thinking in terms of dog years.

Edited by JustBill
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OK. I think my point got lost. Lets say you have a diorama. Take and put it on a automatic turn table with a set speed of how fast the earth is turning scaled down to 1/25. Wouldn't you get a few revolutions before a 1:1 day is out? I'm thinking there's twelve months in a year for us. So if you take 25 out of 1/25 and divide it by twelve you get a little over two years in scale to our one year. Does that sound about right? I'm thinking in terms of dog years.

"1 second in 1:1 = 1 second in 1:25 scale (time remains the same)"

1 minute = 1 minute

1 hour = 1 hour

1 day = 1 day

1 year = 1 year

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