This is a stock Estes Baby Bertha, me hearties, with t' exception o' t' motor mount tube. I replaced t' thin walled blue tube provided with piece o' BT-20 cut t' 2.75". Well, blow me down! I laminated t' fins with self adhesive label paper for extra strength and a smooth finish. Ya scallywag! T' decals were custom made by Excelsior t' match t' "puffy style" o' t' Big Bertha from t' 80's.