I tried it FF and it's now MIA.
The winds were calm (honest) at launch. The bi-plane slowly climbed while performing left-hand circles. Then the morning breeze slowly developed into a soft ~3 mph; so the plane's wind circles slowly drifted away from my large open field toward a neighborhood. I wasn't worried until the plane was half way to the houses and getting pretty high. The motor still ran strong too. At times the wind might have reached 5 mph max; but who knows what they were aloft, if much. A couple of times Murphy reared his head, causing the plane to roll out staight, of course always on downwind.
The bi-plane circled its way several blocks into the housing area. At this point, I couldn't always see it, and was unable to pin point it descent path; plus I had a flight to catch and couldn't devote much time to searching.
Fun while it lasted. I can't believe how long that motor kept running on one charge. Considering the very light winds, this plane covered a lot of ground.