Selecting, designing, building, and restoring aircraft. Readers: 15000 (0.2%) {62%} Mesgs per month/day: 1468/49 {76%} Crossposting: 3% {18%} Megs per month/day: 2.5/0.083 {78%} Sites reciving this Group: 64% Cost ratio ($US/month/rdr): 0.10