Being that this is probably the SSR loco thread, I thought id ask the question here instead of starting a new post.
Have been seeing L277 being used on SSR SG grain trains. Not sure who owns it, it was part of Australian Locolease, so am assuming whoever owns that now.
On the L Class though, I've noted that they are the same model as the C Class - how correct is this? When first built, were they all but the same or are there differences? I note there have been some changes to the L's since they were built.
(Source re similarity: http://users.cdi.com.au/~johnc/lp2_clyde.html).
It doesn't help that L277 isn't really an L class.
L277 was built as 1.001 for Comalco in Weipa in Queensland, along with 1.002. These two had heavier frames than standard and weighed 140 tonnes rather than 135 tonnes more or less. They didn't have dynamic brakes either. L277 can't run with full fuel tanks unless it is limited to 80km/h.
But otherwise they were similar to L251 to L273 except that they didn't have pressurised engine and electrical compartments. The pressurisation meant that the air intake was further forward and sloped on the lower edge because the pressurising fan was at an angle.
Later L274 and L275 were built which had the same air system as the two Comalco units (which was based on USA units like the SD40.) These were the standard weight and had dynamic brakes, but were painted a slightly different shade (light blue rather than "Light Admiralty Grey".
When Comalco got GML10 (as 1.004) they sold 1.002 to WAGR who numbered it 276. I guess it was really L 276 but the "L" didn't appear anywhere on it. It was only used as a trailing unit and had its engine removed and put in a standard L class.
276 was sold and stored for a long time at Dynon. It was then rebuilt and numbered LZ 3119 but quickly renumbered to LZ3120. It had holes cut in the frame to make it lighter and was fitted with dynamic brakes at the same time.
Anyway VR decided around 1975 or so that they needed ten locos of that power so they bought the C class. These were like 274 and 275 except that they had a different design of cab and different arrangements for the sandboxes.
C class didn't have handrails like the L class as built, but had handrails on the side of the hood. Later proper handrails were fitted (but those on the hood stayed) and a tiny platform was added to the nose.
But all of these locomotives were model GT26C.
After moving to private ownership, the C class had toilets fitted at the back end, removing the platform there, except C501 which was preserved (although it still ran freight trains from time to time).
But the basic components of all these locomotives were the same.