ORIGINAL: Gray Beard
I just have to question this. I fly on average three days a week, I was involved in pylon racing also for a long time and to this day I have never seen anyone, myself included ever seize a model aircraft engine. I have seen cranks break but never seen a model plane engine seize. I have yet to see any aircraft pilot use a temp gauge. Just how many engines do you see seizing up in any given year??
To answer your question last year I saw five seize, including ironically one on a small pylon racer.
I had one of mine sieze the year before too.