Never seen any RC Tripehound kits around here other than the D.A.R.E. Hobbies version which was a smallish sportscale design but I have a 1/6 scale plan by Tim Royle (England), 1/5 drawings by Replicraft (highly recommended- you can build a fullscale one using these drawings!) and 1/4 scale plan by Mike Boothe (England). What a lovely airplane. I've built the wings for the 1/4 sized version. After I finish my DH-5 I will put it back on the bench.

Added 1-5-10 Aerodrmerc.com has a Tripe in 1/8 scale 40"