I apologise in advance if there are no renderings to accompany this post- which will be kind of wordy.
I must confess I have gravely under estimated the prowess of one Curly Lawrence, to a degree which also adds to the awe-inspiring heights of his work.
The number I had once been given was around 166 designs, which seemed plausible. These days, I would place that number north of 300. To establish a few things, here is how I plan on counting variants:
1. Different valve gears for the same locomotive. (Pamela as a Baker or Walschaerts, or an increased or decrease cylinder count)
2. Different wheel configurations for the same locomotive (eg: Austere Ada as a 2-8-0 vs. 2-10-0)
3. Different boilers (flues vs. water tubes, etc.)
4. Different prototypes- same design as an American locomotive or British.
5. Different scales (this is the one that will be the death of me)
So, for example, Curly did have provisions for three different boilers on three different valve gears of Tich. Ergo, that would mean that there are nine possible configurations of the Tich since theoretically the locomotive could be built to any of those possible combinations.
Granted, that doesn't mean the Dot, which is a scaled down variant of the Doris will count as having all the valve gears the Doris could have, since it was expressly described as being slip eccentric.
Now, there are some instances where there is a few parts that Curly has described, such as a 5" gauge Doris's cylinders. I'm not sure if I would count that as being enough information to say that he did design a five inch gauge version of the Doris.
With all of this in mind- plus the fact he would explain how something could be modified (damn the Caterpillar being totally workable as a 4-8-2 and 4-10-2 as well) and even making drawings for this, the number of locomotives Curly designed is certainly going to be on the rise.
What this all means for me is that I have to be much much more thorough than I thought I was going to have to be. The idea of just being able to skim through magazines and find the designs that are missing or lost is off the table.
I think that it's safe to say that I am going to need to get my small hands on every last article that Curly has ever written as well- he had a way of sneaking in a boiler drawing (Ivy Hall and it's equally ugly gauge 1 twin) with an information bureau or lobby chat article that is enough to make someone with any degree of meticulousness in their nature explode.
At this point I can't even honestly say which locomotives I would be drawing. Literally there are going to be a lot more than I thought.
When it comes to drawings the parts- there is something I have discovered about Netta that has been a huge help:
When it doubt, copy Netta.
For example, the drawings for the Bass that I have are not that good, especially when it comes to the rods. The critical dimensions are present, but the rest is left to the imagination. When I am left with something that open ended, I found that Netta with a lot of small parts does generally work well as a filler when things are murky and not mechanically critical- since Netta is described in all five gauges.
In the beginning I have put out a lot of drawings, but now I realise I was more or less eating the icing on the cake. I am going to need to slow down A LOT and accept that this could end up actually taking years to complete- more years than I expected. Thankfully I have been able to source a fair number of Model Engineer magazines- I will need a lot more for some of the earlier stuff, and I have a great group of people I can turn to for support through this monster of a project.
I just hope that my work when its all over is of good quality and helps model engineers in some way or form.
One a final note, has anyone here EVER been able to find English Mechanics on eBay?! I never seem to find anything about it- ever!