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De Lackner HZ-1 Aerocycle

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"One-Man Amphibious 'Copter"01:20

"One-Man Amphibious 'Copter"

De Lackner HZ-1 Aerocycle, also known as the YHO-2 and by the manufacturer's designation DH-4 Heli-Vector.

The IdeaEdit

De Lackner built a flying platform as a possible civil and military transport, but the main idea was as a battlefield transport for Army and Navy personnel. It was seen as a way of flying over trenches, berms,  rivers,  barriers, locations of blown-up bridges, minefields, etc.

The deviceEdit

Above the rotors it was a small metal foot plate with a waist high tubular metal handrail and metal control shaft, with a small control panel and handle bars on it. A small motor was also on the footplate, beneath the handrail and control shaft. Below the metal foot plate as short metal drive shaft and then the 2 sets of 2  ~7ft long counter rotating rotor-blades. A short way below them is a

The "Basic US GI factor"Edit

It was assumed by the US Army that a 19 year old recruit with only basic training must be able to use the kit after a brief chat and couple of demonstrations without killing or seriously injuring himself or others. It was thought to be too complex.

In addition, the low-mounted rotors had proved to be prone to kicking up small rocks and other debris.


De Lackner HZ-1 Aerocycle.
Category. Statistic.
First flight on. 22 November 1954.
Retired on.  1956 or 1957.
Major contractor(s).  De Lackner Helicopters.
Passengers and cargo capacity. 0
Fight ceiling. 5,000 ft (1,524 m).
Top speed. 75 mph (121 km/h; 65 kn).
Dose it use nukes. No.
Range. 15 mi (13 nmi; 24 km).
Crew. 1 (a pilot).
Nationality(s). American.
Class. Direct-lift rotor aircraft.
Disc loading. Probably very low.
Number of rotor main blades. 4.
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Also seeEdit

  1. Bell Pogo
  2. Bell Helli-jeep
  3. Avro Flying Car
  4. Bell Helli-Vector
  5. KGB Chita Jet Belt
  6. Bell Textron Rocket Belt
  7. Bensen B-10
  8. Williams X-Jet
  9. HZ-1 Aerocycle
  10. VZ-1 Pawnee

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