Canadian Army "Nav Aid"

[David Dunlop]

Douglas.

If it is what I am thinking of, it comes in a case about the size of an old portable phonograph. It was powered of the vehicle supply and was primarily designed for the MB/GPW and initially used in the US Army. A number of cables connected the machine to the vehicle (how I cannot recall).

It was basically an analog x/y plotter using an indelible ink pen. Think of an etch-a-sketch toy with the plotting pen on top of the glass rather than under it. A few years back, a place called Surplus City in Anaheim California was selling scads of them off. All NOS. It was a neat bit of kit but took up an entire rear wheel well to install. I think someone also did an article about them in Army Motors Magazine quite some time ago.

Hope this fuzzy recollection helps.

David