Hi Dennis,Thanks for your very prompt reply!I'll give your suggestion a try, but it would be preferable if coding for the small injector was included in Open Rails.  I'll keep my fingers crossed :)
Regards,Ged

> Date: Thu, 13 Nov 2014 10:16:58 +0000
> From: <email address hidden>
> To: <email address hidden>
> Subject: [Bug 1391449] Re: Use of Small Injector to release GWR loco brakes
> 
> There is actually a temporary patch to get round this, hence the fact that the brakes do eventually release.
> What happens is that the code provides for the brakes to release when the controller is set to "Running".  The problem is that the "Running" sector, like the "Apply" sector works from 0% to 100% in the same direction.  Therefore, if you go to full "Running" (0%), if that's not a confusing statement, which is the natural "stop" when you move the brakes to release, the patch releases the brakes at a near zero rate.  The "Running" sector of the brake controller is so small on these locos that you move from 100% to 0% in a blink of an eye.  When releasing the brakes, if you try to stop the controller AS SOON AS IT ENTERS the "Running" sector  (you'll see the percent "Running" when you lift your finger off the key), the brakes will release at a more realistic rate.  You often have to juggle back and forth to get near the 100% "Running", the best release rate.
> 
> I have a personal patch which gets round this problem, I haven't
> volunteered it because I've assumed that the Injector controls will
> eventually be implemented.
> 
> -- 
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1391449
> 
> Title:
>   Use of Small Injector to release GWR loco brakes
> 
> Status in Open Rails Tracker:
>   New
> 
> Bug description:
>   Hi,
>   In accordance with real-life practice, many MSTS models of steam locos with a Great Western Railway origin require the Small Injector to be open in order to release the brakes.  This is not, currently, included within Open Rails with the result that it not possible to satisfactorily drive these locos.  I say "satisfactorily" because after a comparatively long time (2 minutes), the brakes do release.  This is shown at the top left of the OR screen against the Train brake entry where, when the value of inHg reaches 19, the loco starts to move (the maximum for this value is 25, which was the standard pressure for GWR locos).  Typically, MSTS takes just over 1 second to release the brakes once the Small Injector is opened.  When running in MSTS, the Small Injector is closed to conserve steam; the brakes can be applied normally when it is closed.
> 
>   For testing this, a suitable freeware loco is available from the UKTS
>   file library, as file ID 28517 (RF_BR_78xx_7812); it also requires the
>   GWR Sound Set (file ID 6481) which is automatically installed in the
>   common.sound folder.  This loco was selected because it starts with
>   the Small Injector closed and the brakes on.
> 
>   Although the non-functioning of keys H J and K is covered in bug
>   372867, no detail was provided
> 
>   Regards,
>   Ged
> 
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