The Hummingbird 300L project reaches its final stage after nearly a year of fabrication and assembly. This scratch-built, four-seat experimental helicopter is based on the legendary Sikorsky S-52 desi ...

We’re back on the Homemade 4-seat helicopter build, and it’s starting to look like a real aircraft. Since the last video, we’ve made significant progress: - Built and fitted the fiberglass doors - ...