RE: Can anyone help me identify this biplane?
Yes, that is the old Airomaster. I had 7 of them with all three wing set ups, both straight, bottom straight and top swept, and both swept. All flew extremely well. I had a Fox 60 in all of them, very adequate power and performance. When the Giant Airomaster became available as a kit from Great Plains, I got it and it is in my current hanger powered with Quadra 75CC and it also is an excellent flyer. I also lucked out and just picked up one of the old (20 years plus or so) original kits and have started on it. As you can tell, I love that design.