Dan,

I have built many LT-40's for new club members. The LT-40 is the best trainer out there in my opinion. It flies great with a 46AX but you could put the 50 in it as they are the same size. The 60 might not fit so well up front. The front gear is an issue but I change it to a Fults 350 double fork gear and none of them have had problems. Reinforce the wing joint with some thin fiberglass, add some extra triangle stock to the firewall and add some triangle stock to the vertical stabilizer and you will have a strong trainer. There are a lot of RTF trainers but none have the smooth characteristics of the LT40. If this is your first plane, don't make it a tail dragger. Are you going to have an instructor with a buddy box or are you doing this on your own? I do not recommend doing this by yourself, but there is a whole thread on that subject alone. There is also a good thread on the LT-40.

Good Luck,

R/C Foolish

p.s. - R/C Buyer's Warehouse has a few in stock, they are located in Nashua N.H.