Not very technical and probably of no help, but back in the day I replaced several VR’s on small trainer airplanes. As matter of fact, in the ‘70’s we used to go to the local KMart and get a Ford VR and it fit perfectly. The only difference I was aware of between an auto VR and a aviation VR is that the springs were stronger to keep the points from fluttering at pressure atltitudes but those old trainers never went above 3,000ft. anyway so we figured what the heck. There also was an extra circuit inside the VR connecting the points which is probably what is being referred to. Another difference was the price, KMart Ford VR was about $7 and the Cessna VR was about $80 at the time.
I’ve changed a few VR’s on tractors over the years and it seems like the ones I have changed are on tractors that sat unused for a long time. I don’t know if I have ever changed one on a tractor that was used regularly.
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Today's Featured Article - Chores - by Frank Young. The ceaseless passing of time! It is at once our friend and our enemy. It measures our progress and it makes us old. Like most features of our life, few things are all good or all bad, and most such judgments depend on our own perspective or viewpoint. In our particular hobby, we enjoy the nostalgic return to the days of our youth as we recreate many of the scenes that took place on the family farm that served as the stage for the first few acts of the play that is our live
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