Bobby
The differences are what I am trying to figure out. I have read somewhere that the Canadians “did their own thing” in relation to section reference numbers.
In much the same way as the RAF, creating and deleting as circumstances changed.
As a result not all codes are the same. Different aircraft and different stores etc.

The RAAF as you know had their own system which incorporated the RAF system when it came into effect, over a period of time, but the basic principle of their original system stayed in place until NSN’s were universal.
In all cases these codes or extra “letters” are about the management of and the assigning of management responsibilities to the correct teams of bureaucrats.

This must be a big day for you, your first post on the forum, congratulations.

In relation to AP1086’s I most likely have them and the 2 preceding vocabulary AP’s as well.

PM me as I think we may have a bit to discuss.

Ex Brat its part 2. PM on the way.

John, there appears to be several revisions of the book, so I had difficulty working out what the publication date may have been. No doubt all that information is in the Part 1 of the book.
You are correct pages 515-529 are Experimental Testing of Radial Air-Cooled engines and the 615-618 are Factory Inspection methods.
The factory inspection methods seems to talk about the types of metals used in different parts of an aircraft.

Maxim08
Thank you for insight in the matter. I also scan my documents etc. into TIFF files and then convert them into PDF once I have OCR’d them. You might as well work in the native file type of the end result, as I transform my documents into bi-tonal form for processing.

I have also been doing this for years. The scanning of the microfiche is just an extension of this process. It is most useful when someone on the forum asks a, “Does someone have any information on XYZ”, type of question. For example the thread on Gemini or Messenger cockpit drawing question, or your recent question on Palmer type 77 wheels. I thought yes, I do have something on that.
Just tapped it into the search of the computer, with in seconds I have results from my indexed drives. In both cases the provided information has proved useful and could have been difficult to source otherwise.

Currently working on some old RCAF EO documents, some really great info is coming out. I appear to have forgotten a few things from when I was working on aircraft in the mob. (maybe a few things I never understood?)

Scanning the UK CRL would make finding part numbers easier. In particular obsolete items that are no longer included in current part number/NSN search engines.

I agree with you that the Irfanview viewer program is great and it forms a major part of my image processing for OCR conversion.

The one conversation I have had with an imaging company was that the PDF was their standard service. At the time I had incorrectly estimated how many images I had, the bill was looking at $5500. That was based on 94 images per sheet, then I looked closer and found it was 270!

I will be taking TonyT suggestion and looking on the net for surplus reader/printers coming up for sale. I am prepared to put a few hundred dollars into the problem.

Looking forward to anyone else’s experiences in this area.