the GB DR-109 is a great flying plane. was designed for all out IMAC.
I have flown two Godfrey one designs when I started flying IMAC. in fact it was my first giant scale gas. they both have Zenoah 445 (74cc) twins. I have since moved on to a H9 and radiocraft extras.
I would sell the newer of the two godfreys if anyone is interested(?) - just havent got a picure yet to post on the for sale forum
Hubb