GE 44 tonner
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 Posts: 311
 Joined: Fri May 28, 2010 3:40 pm
 Location: Winchendon Mass. USA
GE 44 tonner
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
Re: GE 44 tonner
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
Re: GE 44 tonner
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.
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.
 Rich_Carlstedt
 Posts: 1451
 Joined: Sat Dec 21, 2002 12:16 am
 Location: Green Bay Wisconsin USA
Re: GE 44 tonner
well, If HO is 1/8" to the foot and you want 21/2" to the foot , the 21/2" has 20 , one eights in it so the ratio is 20 to 1
Rich
Rich
Re: GE 44 tonner
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
Re: GE 44 tonner
Would that be like laying 96 GE44 HO engines put end to end and be the length of a real one?
Ken
 Rich_Carlstedt
 Posts: 1451
 Joined: Sat Dec 21, 2002 12:16 am
 Location: Green Bay Wisconsin USA
Re: GE 44 tonner
Thank You Alco !
I was always under the impression that it was called "HO" because it was HALF of "O" gaugetherefore HO.
Several train guys told me that years ago.
What is O27 then ? and is O gauge 1/4" to the foot ?
Rich
Re: GE 44 tonner
Easier if you start with 1/4"  just move the decimal over one place.