Hurri, no offense at all. And with my inclination to keep records (see profile....) I have always kept a log book--two sections, one simply listing the date and number of flights that day, my plane or others, and the other section containing data on each airplane, date, number of flights that day, and anything of value that should be noted for later info. When I finish a plane, I make up the page for it, name of plane, engine used, date started and date finished, weight RTF, and any info re: RX used and battery date. Takes about a minute to do. Then just keep a list of the planes you've built. Number 111 is just about whipped, a Goldberg Sukhoi. I also list any info on the plane's end, either crashed or sold.

Sounds like more work than it really is, but not all guys are inclined to do it, and that's ok too--whatever is fun for you!

Clair