Re: [CBQ] Re: compatibility of engines

[Bill Scott <wscott@optonline.net>]

And this is exactly what my original question was all about.  If the big unit 
is delivering half of its power and the GP7 is delivering only half of its 
power, aren't they going to create problems for each other, since they are 
delivering different amounts of power?  In effect, isn't the GP7 going to slow 
down the traain?

Bill Scott


On Feb 16, 2014, at 2:00 PM, runextra@gmail.com wrote:

> If the locomotive engineer opens the throttle to 'Run 4' the big unit will 
> deliver half its power and the trailing GP7 will deliver half of its power. 
> 
> The basics of what you are saying are correct. However, to nitpick a little, 
> locomotive throttle notches 1-8  are not linear. For instance on a 3000Hp 
> SD40 notch number 4 only produces 1085Hp, about 1/3rd the max 3000 Hp not 1/2.
> Even notch 5 does not get you quite 50%.
> 3000 Hp GP40/SD40 notch vs Hp output.
> 1=200hp=6.6%
> 2=390hp=13%
> 3=710hp=24%
> 4=1085hp=36%
> 5=1420hp=47%
> 6=1830hp=61%
> 7=2375hp=80%
> 8=3000hp=100%
> Other models/makes are similar.