Quote:
Originally Posted by Mike Cecil
Grant,
I think you will find that the long arms (without notch) were originally introduced on Australian GMH production CMPs to allow the w/screen to open to 90 degrees, or be closed shut. I believe the intention was either fully open or fully shut, so leaving the w/screen locked at an angle just by the friction/tightness of the locking wheels was not intended. There were footman loops on the leading edge of the roof to secure the canvas w/screen covers for when the w/screen was in the fully open position, to prevent reflection.
There were also activating arms on the centre pylon to aid in getting the w/screen to 90 degrees but these are not visible in your images, so perhaps these did not make it into CDN production? The levers were also an Australian invention.
Hopefully, some Aussie CMP owner will have an image of this to post?
Mike
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I'm not saying you are wrong, but it seems unlikely that an Australian produced arm would have made its way to central Canada. I haven't seen any examples of footman loops on the leading edge of the roof for securing canvas covers on Candaian CMPs (or residual mounting holes that I recognized). Just curious when Australian production began, is the start of Australian production compatible with the 1942 date implied by the serial number given in Canadian parts listing for introduction of long arms, which I think is not long after start of production of Cab 13 in Canada?
Are the arms on the central pillar in posts 2 and 3 the ones you are talking about or is there yet another variation I should be looking for?