If I may bring this awesome thread back into the light...
Many of you probably knew about Ron Urinsco. I met him at Black Rock back in the mid 90's when his EX motors were becoming fairly well known, and before he started the short-lived APS. His motors were always spectacular and reliable. The only cato I ever saw was his O in Jim Hart's rocket at Balls 005, which apparently was a hardware failure and nothing to do with the propellant. Anyway, here are a few that I would like to share.
His Redeye formula was one of the first red flame propellants out there, and it attracted a lot of attention in the 90's. Here's a 54mm load for a 1706 type case.
He also had his low metals formula that he called "Standard." I have a long six grain 54mm L1400 here with AT closures and custom graphite nozzle by Ron.
Ron also had a butt-kicking blue flame. I was lucky enough to fly one of these at LDRS 14. I no longer have it, but Ron lent me his custom reloadable hardware for these loads. I gave it back after the flight. I may make these two into single use motors...
Here's a video taken from Kurt G's VHS from LDRS 14 of the flight. It's well worth noting that the rocket in the video ejected on Ron's motor ejection alone. No electronics! That's a younger me: )
But his Spitfire...oh man. It wasn't the first sparky to hit HPR, but it certainly remains one of the best to date. Here is a 54mm L load for the same case shown above:
