I almost forgot we were talking about the H9 Edge 540. I did a second maiden flight on a buddies H9 Edge 540 this weekend. He crashed on the original maiden flight due to "radio" problems - I think it was one of those reversing Y's that may have helped him make an unplanned landing. He rebuilt the Edge and put in a BME44. I took it up and trimmed it out for him, but considering the planes history I didn't want my hands on the sticks too long. He had removed the reversing Y, but ...... The plane flew well. I landed it for him. This is when I realised that it was heavy. It dropped radiply in landing. This is a great plane but a gas engine just makes it heavy.