GE 44 tonner

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duckman903
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GE 44 tonner

Post by duckman903 » Sun Feb 10, 2019 12:57 pm

I've looked and found nothing, so if I use an HO engine which is 1/87 and I want to go up to 2 1/2" scale how much do I multiply the 1/87 ratio to get 2 1/2" scale

pete
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Re: GE 44 tonner

Post by pete » Sun Feb 10, 2019 3:46 pm

I know almost zero about locomotive building, so bearing that in mind since there track gauge is .650" apart for HO scale then to scale up to 2 1/2" you'd divide whatever gauge that uses by the .650". That should give you the multiplication factor. If it is exactly 2 1/2" then you'd multiply all the dimensions by 3.846

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ALCOSTEAM
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Re: GE 44 tonner

Post by ALCOSTEAM » Sun Feb 10, 2019 6:45 pm

In HO one foot equals 87 feet or 1044 inches. In 2 1/2" scale one foot equals 2.5 inches.

If we take a 120" in HO scale that comes out to 1.379", the same 120" in 2.5" scale comes out to 25". That looks like from HO to 2.5" scale needs a multiplier of 18.129.

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Rich_Carlstedt
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Re: GE 44 tonner

Post by Rich_Carlstedt » Sun Feb 10, 2019 11:19 pm

well, If HO is 1/8" to the foot and you want 2-1/2" to the foot , the 2-1/2" has 20 , one eights in it so the ratio is 20 to 1

Rich

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ALCOSTEAM
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Re: GE 44 tonner

Post by ALCOSTEAM » Mon Feb 11, 2019 12:15 am

If HO was 1/96 scale then 1/8" to the foot would work, but HO is 1/87 scale or 1 ft equals .13793 of an inch. 2.5 inches divided by .13793 equals a multiplier of 18.125136

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4gsr
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Re: GE 44 tonner

Post by 4gsr » Mon Feb 11, 2019 6:20 pm

Would that be like laying 96 GE44 HO engines put end to end and be the length of a real one? :shock:
Ken

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ALCOSTEAM
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Re: GE 44 tonner

Post by ALCOSTEAM » Mon Feb 11, 2019 10:08 pm

4gsr wrote:
Mon Feb 11, 2019 6:20 pm
Would that be like laying 96 GE44 HO engines put end to end and be the length of a real one? :shock:
nope

but if you put 87 end to end you would get real close to the prototype length

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Rich_Carlstedt
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Re: GE 44 tonner

Post by Rich_Carlstedt » Wed Feb 13, 2019 7:28 pm

ALCOSTEAM wrote:
Mon Feb 11, 2019 12:15 am
If HO was 1/96 scale then 1/8" to the foot would work, but HO is 1/87 scale or 1 ft equals .13793 of an inch. 2.5 inches divided by .13793 equals a multiplier of 18.125136
Thank You Alco !
I was always under the impression that it was called "HO" because it was HALF of "O" gauge-therefore HO.
Several train guys told me that years ago.
What is O-27 then ? and is O gauge 1/4" to the foot ?
Rich

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rudd
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Re: GE 44 tonner

Post by rudd » Wed Feb 13, 2019 7:32 pm

Easier if you start with 1/4" - just move the decimal over one place. :)

duckman903
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Re: GE 44 tonner

Post by duckman903 » Sat Feb 23, 2019 11:48 am

A friend had the April 1973 Model Railroader which has as the center fold a GE 44 tonner which is a measured drawing , so if I decide to go 2" scale do I just multiply the feet times 2 example 29' X 2 = 58" . my brain is just not being friendly lately.

toddalin
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Re: GE 44 tonner

Post by toddalin » Sat Feb 23, 2019 2:31 pm

I think that some people are confusing "scale" with "gauge." This is partially because the way in which the question was worded. Perhaps the OP can clarify which he has in mind.

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rudd
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Re: GE 44 tonner

Post by rudd » Sun Feb 24, 2019 8:30 pm

the 2" scale example you give works.
If you want to go 2 1/2", just multiply feet x 12 x 2.5/12
29 feet is 348". 348 x 2.5/12 = 72.5".
With this method, if you had say 29'-6", you'd just add the 6" to the 348" to get 354" and you'd get 73-3/4"

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