While access to the railway remains somewhat restricted by the presence of a construction site, along with reclaimed materials blocking the pathway and filling the station building right up to the rafters, locomotive work that had been scheduled for Winter, has been brought forward!
Being quite happy that the "Speeder" has proven itself to work in principal, there still remain a few essential improvements to further enhance the performance.
Apart from the rather "scary" acceleration capability, I had noticed that adhesion is a major issue: It is still a fairly lightweight machine, so I have been assuming that additional ballast would be an absolute requirement - although I have yet to find anything suitable that takes my fancy! In the meantime, I decided to attend to improving the first "guesswork" gear ratios chosen, and obtain some more chain sprockets. Rather than ending up with a "waste" set, I decided to order two - one with a maximum number of teeth that would fit on the secondary drive shaft, and another, being of the same size as the original, when fitted to the leading axle, would provide a means of coupling all wheels to drive!
Oddly, the cheapest 25H chain that Rich could find was a gold plated one instead of the regular variety?! I assured him that such a peculiarity didn't really matter, as none of the chains will be easily visible when the cab floor and control pedestal are installed!
There was a fair amount of chopping and changing links to fit the new bits - and amazingly, throughout the entire process, I managed to "ping" only
one of the awkward little circlips... and that just happened to be the solitary "gold" one!
No problem this time though: It was fairly easily located... glinting merrily where it had landed, (an unusually short distance away!) and on a heavily patterned carpet!
As a retrospective fitting, the long coupling chain turned out to be a reasonable fit - without having to alter the existing wheelbase - although it is not quite as taught as I would have liked. It does droop slightly below the frames when reversing - i.e., when pushing the driving truck, but I am not sure what kind of tensioner (if any) would be the best option? I do think a chain guard, also doubling as a drip tray would be a jolly good idea - and that might alone be sufficient for safety?
I just couldn't resist the temptation for a thorough test of the new arrangements on the first clear morning afterwards... Just before Mr. O got started working again on the "Goods Shed" - and requiring my assistance - I had a few minutes for some trips!
Now, the very first trial was on a dreary, drizzly afternoon, with notably wet rails - so there was much slippage - and whist the engine showed it had plenty of reserve power, it clearly struggled to haul a single adult! The second time, with the children, the conditions were sufficiently dry, and adhesion was not so much of a problem - but still not particularly adequate either. This time, the state of the road was absolutely abysmal!
Not only were the rails soaking wet again, on a typical Autumnal morn - with a loads of additional fallen leaves scattered thereabouts, but Mr. O., had been regularly tramping up and down in his muddy, clod jammed, building site boots! After the initial few feet of movement, all the wheels became a slimy, slithery mess! Yet did they slip...
Hardly a bit!
I set the controller at the start of each trip... and just let it go! The little engine even comfortably managed the top curve - with barely a murmur of complaint! Lovely! It was only supposed to be a quick test, but errmmm...!
Just as I was (eventually) packing up, Mrs. I., came down to see where I had got to, and asked me;
"Have you taken any pictures?"
"Oh... no!" I replied.
"Well put it back and go round again, while I take some" she insisted!
So trying to be a good boy - I did as I was told!
The three, full circuit film recordings she made on her mobile were great, but as yet, unfortunately I don't know how to put clips from them up on here! I'm afraid that some frustratingly low-resolution "screen grabs" is all that I can offer at the moment:
The pictures don't really convey how much fun the "old git" of a driver, squatting side-saddle on a "hop-up" wagon was actually having!
Nor the discovery that, despite the increased gear ratios, the sprightly performance of the loco is unnoticeably affected!
Pete.