They produced from one bike and four wing one helicopter. It is working with human power. The helicopter be fly 64 second and 3,3 meter. It is first human helicopter in the world. Cool product.
You are viewing a single comment's thread from:
They produced from one bike and four wing one helicopter. It is working with human power. The helicopter be fly 64 second and 3,3 meter. It is first human helicopter in the world. Cool product.