burnmouth Posted May 31, 2012 Share Posted May 31, 2012 I have a couple of T9 locomotives (30726 and 30310) fitted with R8249 decoders.Each runs much more slowly than all other locomotives in my fleet. I am using a Hornby elite controller. Has anybody any advice on how to increase the maximum speed of these locos.TIA Link to comment Share on other sites More sharing options...
96RAF Posted May 31, 2012 Share Posted May 31, 2012 Use the Elite menus and attempt to read V-max (CV5), it should be set to 254/255, although the R8249 decoder does not support changes to this CV. See https://www.hornby.com/filelibrary/download/?FileID=137 Rob Link to comment Share on other sites More sharing options...
poliss Posted May 31, 2012 Share Posted May 31, 2012 Hard to tell if it's running too slowly without seeung it in action. One review says "T9 model contains a powerful and responsive 5-pole motor, realistically geared." The "realistically geared" usually means locos run more slowly than you would expect.You won't be able to read CV5, because the R8249 doesn't have it. Link to comment Share on other sites More sharing options...
Gregd99 Posted May 31, 2012 Share Posted May 31, 2012 Have you tried measuring the speed of the T9 and then converting it to a scale speed in mph or km/h?Typically locos are able to run much faster than their maximum scale speeds. For example my class 08 will do 50-60 km/h .... but the max was about 22!!I generally run my decoders at around 50% throttle to achieve maximum scale speed. If anything I prefer to run my trains below max scale speed as my layout 2.7x1.2m just works better with slower moving trains. Link to comment Share on other sites More sharing options...
2e0dtoeric Posted June 1, 2012 Share Posted June 1, 2012 Not really relevant, but I've got an ancient DMU I put a decoder into, and it runs (and ran) at a scaleish speed of about 240MPH if I let it go! (It doesn't corner very well, though!) I can't recall how old it is, somewhere around 50 years, but it had knurled drive wheels to make a growling noise in lieu of engine noise. The knurling is pretty well worn off, now! Link to comment Share on other sites More sharing options...
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