![American one-man helicopter known as the DH-4 Heli-Vector. Developed by Lackner Helicopters in the mid-1950s - 9GAG American one-man helicopter known as the DH-4 Heli-Vector. Developed by Lackner Helicopters in the mid-1950s - 9GAG](https://img-9gag-fun.9cache.com/photo/aYyO8j7_460s.jpg)
American one-man helicopter known as the DH-4 Heli-Vector. Developed by Lackner Helicopters in the mid-1950s - 9GAG
![Chris Bolton on Twitter: "HZ-1 Aerocycle, DH-4 Heli-Vector, was US one-man "personal helicopter" developed by de Lackner Helicopters in the mid-1950s. Intended to be operated by inexperienced pilots with a min 20 Chris Bolton on Twitter: "HZ-1 Aerocycle, DH-4 Heli-Vector, was US one-man "personal helicopter" developed by de Lackner Helicopters in the mid-1950s. Intended to be operated by inexperienced pilots with a min 20](https://pbs.twimg.com/media/EPOer4qXUAAQ4zR.jpg)
Chris Bolton on Twitter: "HZ-1 Aerocycle, DH-4 Heli-Vector, was US one-man "personal helicopter" developed by de Lackner Helicopters in the mid-1950s. Intended to be operated by inexperienced pilots with a min 20
![US Navy Hiller One-Man Helicopter XROE-1 Aircraft Original Vintage Postcard at Amazon's Entertainment Collectibles Store US Navy Hiller One-Man Helicopter XROE-1 Aircraft Original Vintage Postcard at Amazon's Entertainment Collectibles Store](https://m.media-amazon.com/images/I/41mwCylo7XL.jpg)
US Navy Hiller One-Man Helicopter XROE-1 Aircraft Original Vintage Postcard at Amazon's Entertainment Collectibles Store
Microsoft Flight - The Hz-1 Aerocycle, the one-man helicopter developed by US-based Lackner Helicopters in the mid-1950s. Are you brave enough to take this for a test fly? | Facebook
![Hiller ROE Rotorcycle. A one-man, foldable, self-rescue and observation helicopter from the 1950s : r/WeirdWings Hiller ROE Rotorcycle. A one-man, foldable, self-rescue and observation helicopter from the 1950s : r/WeirdWings](https://preview.redd.it/hiller-roe-rotorcycle-a-one-man-foldable-self-rescue-and-v0-r9prnv0vzyg91.jpg?auto=webp&s=538c6dc21456782f82f197dc726d263646dfd1b3)
Hiller ROE Rotorcycle. A one-man, foldable, self-rescue and observation helicopter from the 1950s : r/WeirdWings
![Mosquito Ultralight Helicopters- DIY One man helicopters. | Ultralight helicopter, Helicopter, Ship tanks Mosquito Ultralight Helicopters- DIY One man helicopters. | Ultralight helicopter, Helicopter, Ship tanks](https://i.pinimg.com/originals/b9/25/3d/b9253de744d48a9bc5c517bc26777955.gif)