At time Kyosho produced the helicopter bodies in white abs material. The Concept Ep mechanic was already build and so ready to be fitted in the hughes 500 fuse. I will flight the concept with his original canopy and with a life 3s 1300mha battery (9.9v). it is better of old 9.6v nicd battery; a little more power and li-fe is more ligher than old nicd packs. With this little li-fe pack i can fly for about 6 minutes.
The kit comes also with his training base set for learn to fly with the Concept EP. At the bottom of this post you can see the concept ep with stock canopy (new).
Is really incredible like this old ep helicopter flight well despite it is a project of end of 80'.