Atomic Systems

AndyM77 wrote:

jimmyshand wrote:The way I see it is the same as your car

Although a car has far smaller and lighter pistons than a heavy locomotive. This is why things like motorbikes / chainsaws / small engine(s) can rev into the thousands, whereas car engines generally rev into the hundreds.

Whilst I'm not a train driver, I'm an ex bus driver and the older vehicles without turbos fitted quite often had around a quarter to half second delay to start revving up due to the reasonably heavy pistons fitted. (MCW Metrobus, Leyland Titans, which use a 'fluid based flywheel'* ) *I'm no mechanic, but I think thats what my instructor said years ago when I was training.

Kariban wrote: maybe ask JustTrains for an overhaul? iirc they were redoing the Voyager.

Wikkus wrote:

Kariban wrote: maybe ask JustTrains for an overhaul? iirc they were redoing the Voyager.

Is it JT's to fix, i.e. did they develop it? I thought it was an in-house RSC creation?

Rik.

jimmyshand wrote:I think that video above highlights my point. If you watch it you will hear the engine rev up then there is a 5 second delay before the loco starts to move. Can you see the difference? The engine is revving up but nothing is seemingly happening for 5 seconds as the inertia and friction is overcome. I think some people are confusing this with pulling the power handle and then nothing happening at all to the engine for 5 seconds when in fact the engine is revving away but no motion has yet commenced.

Kariban wrote:Right, not JT who just sell it, it's RSDL. Who fixes those?

Wikkus wrote:

Kariban wrote: maybe ask JustTrains for an overhaul? iirc they were redoing the Voyager.

Is it JT's to fix, i.e. did they develop it? I thought it was an in-house RSC creation?

USRailFan wrote:

Wikkus wrote:

Kariban wrote: maybe ask JustTrains for an overhaul? iirc they were redoing the Voyager.

Is it JT's to fix, i.e. did they develop it? I thought it was an in-house RSC creation?

Uh, no? RSC had nothing to do with the Voyager, if so they'd sell it through Steam, not through JT. The Voyager was developed by Railwaves, IIRC.

USRailFan wrote:

Wikkus wrote:

Kariban wrote: maybe ask JustTrains for an overhaul? iirc they were redoing the Voyager.

Is it JT's to fix, i.e. did they develop it? I thought it was an in-house RSC creation?

Uh, no? RSC had nothing to do with the Voyager, if so they'd sell it through Steam, not through JT. The Voyager was developed by Railwaves, IIRC.

MisterWho wrote:Quite apart from the degree to which this has gone off-topic, I find the situation on the Class 57 very confusing. It's available through Steam and it's available from Oovee - both currently at discounted prices. The question is, are these two versions the same ?

I recently bought the RSC megapack from Steam so have the latest version from there. The Oovee website implies that all their products are the same as those available through Steam. Yet there have been posts and topics here which suggest that the version available directly from Oovee is not the same as that from Steam, and the Oovee website suggests the same as their 57 is now labelled "new".

Please can someone confirm whether the two versions are indeed the same or not ...
thanks in advance,
moi

jimmyshand wrote:Of course an engine will take time to spool up to higher revs but from my experience there isn't a period where nothing happens at all. Overcoming inertia and friction will slow an engine from being able to increase in power but it won't stop it from revving up, unless of course it stalls due to too much load. The way I see it is the same as your car, you hit the gas the engine will instantly respond. Doesn't mean you'll get instant power and speed but the engine will instantly go to full power setting to try and get you there. The transmission side of things is where the engine meets resistance, by transmission I mean motors, gearing, wheels etc. Unless it is specifically designed that way there is no way a throttle input will do nothing to the engine for 5 seconds, the delay is in power transmission and overcoming inertia. Can you imagine that in your car if there was a 5 second delay every time you moved your foot? You would be spending a lot of time crashed!!

jimmyshand wrote:The way I see it is the same as your car, you hit the gas the engine will instantly respond. Doesn't mean you'll get instant power and speed but the engine will instantly go to full power setting to try and get you there. The transmission side of things is where the engine meets resistance, by transmission I mean motors, gearing, wheels etc. Unless it is specifically designed that way there is no way a throttle input will do nothing to the engine for 5 seconds, the delay is in power transmission and overcoming inertia. Can you imagine that in your car if there was a 5 second delay every time you moved your foot? You would be spending a lot of time crashed!!

Ooveecouk wrote: ... The purchase button simply links you to the Steam store page for the same product. ... Hope this helps.

pacerpilot wrote: But its not a car..its a locomotive. Can you imagine cars took the same distance to reduce speed as a locomotive? You cannot compare the two. The power controllers are not directly connected to the engine. Be it locomotive or DMU, they dont operate in the same way as a car with a direct throttle cable attached to a throttle body.
Glyn, an experienced loco driver, has confirmed the throttle delay exists on all UK locos. I've spent plenty of time on the footplate as shunter on 37's,47s,50s,60s 66, and 67 and all operate in a similar manner.
Even the class 175s I drive today still have a long pause before power is translated from Combined Power/Brake controller into any sort of reaction from the engine. From Moving the brake handle from High through neutral into notch 2, takes around 3 seconds for the brakes to release and only then will the engines have started spooling.

phill70 wrote: Thanks for confirming that

One thing that amazes me around here sometimes, is that you try to pass on some info from the horses mouth, and some people don't believe its true
Don't know why I bother sometimes.

Glyn