I have a Revmaster engine with those ridiculously located bottom spark plug holes that require you to remove the valve covers, rocker arms, and plates on the head where you can insert a socket to get to the spark plugs. I am adding a Great Plains style electronic secondary ignition with automotive plugs and I might be able to get the plugs out without tearing the engine half apart if I can find plugs that have a short insulator on them. Would anyone happen to know of a part number for a short insulator 14mm spark plug that has the correct reach and heat range?
On another subject, I flew last weekend when there were some showers around. There was a beautifull rainbow while I was doing the preflight and I have always wanted to see one from in the air. I now know why I never was able to find the pot of gold at the end when I was a kid. There is no end of the rainbow. When you get up a couple thousand feet it turns into a rain ring. It was an entire circle with the center at about the same altitude as me and it made a complete loop with the bottom near the horizon. Wish I had my camera with me. Brian Kraut Engineering Alternatives, Inc. www.engalt.com
