Easy solution: use mouthpad [1] to control the plane and free the hands to communicate with the ground. :D [1]: https://news.ycombinator.com/item?id=38997930 h

Easy solution: use mouthpad [1] to control the plane and free the hands to communicate with the ground. :D [1]: https://news.ycombinator.com/item?id=38997930 https://news.ycombinator.com/item?id=38997930