These are my first Biplane Pennyplanes. It's another attempt, after trying wide wings (see my last Pennyplane video), to increase the wing area. This video notes what I've learned so far. The last flight was on the last day of flying in the armory (until the Fall), which was yesterday, July 5. It was incredibly hot and humid, but the PP still got up about 30 feet, which is a good sign for flying in the more usual non-steamroom conditions!