I built this Hellcat using pink insulation foam:


We used a simple, home-made hot-wire cutter to cut the fuselage in sections using aluminum flashing templates:


The fuselage was left solid (NOT hollowed) and constructed using JK Aerotech techniques (2mm coroplast wrapped around the forward half of the fuse and strapping tape reinforcement).

There is a lot of construction info in the RCCA forum threads. Just type "Hellcat" into the search engine here:
http://www.rccombat.com/forum_2000/search.asp

And, check out the on-line instructions at http://www.jkaerotech.com

HTH,
D