It's funny this post just re-surfaced. My wife was cleaning out some stuff for a yard sale and came upon a set of plans for the Tiger Tail 4. My dad built one maybe 10 years or more ago. I always liked it and wish I still had it. I've thought about building another one. Don, what would you take for a set of cores? Also, I don't know if this is what you are looking for but one of our club members is a Monocoupe nut. He has designed a number of planes in the series and I'm certain a 90A is in the mix. You'd have to scratch it but his plans are quite good. My dad (again) proofed a set for a 1/3 scale and that plane still is in my fleet. He has plans in both 1/4 and 1/3 scale for most of his designs and they are apparently well thought of among Monocoupe modelers. I'll hook you guys up of you want. Contact me at [email protected] if you'd like. Also I think Ikon N'West used to make a 90A in 1/4 scale.

Rick H.