Actually, I was pretty amazed. I warmed the engine with a blow dryer before heading to the park, used Superfuel 5%, and got really good engine runs. Take offs were fine, landings were all flipovers, but this thing doesn't land well anyhow. I have a Flite Streak almost done, it looks like it will get its first flights with a ski. A plane that actually flies should do better. Will let you know in a few weeks.