John Greenfield latest scratch built radio controlled model aircraft was flown at its first public event at North London Model Flying Clubs Scale Day. This model weighs ~42KG and is powered by two Zenoah 62cc engines. The wingspan is an impressive 4.8 metres. John took 1 year to build the model and a further year to design and engineer the undercarriage. He hopes to fly it off water in the near future!
http://www.youtube.com/watch?v=-q2KIcvx82Y