Hiller Model 1031-A-1 Flying Platform

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    Hiller Model 1031-A-1 Flying Platform

    One-man, twin-engine, flying platform with two counter-rotating rotors turning on vertical axis inside ducted fan.

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    Hiller Model 1031-A-1 Flying Platform

    One-man, twin-engine, flying platform with two counter-rotating rotors turning on vertical axis inside ducted fan.

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    This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's Terms of Use page.

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    Hiller Model 1031-A-1 Flying Platform

    One-man, twin-engine, flying platform with two counter-rotating rotors turning on vertical axis inside ducted fan.

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    This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's Terms of Use page.

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    Hiller Model 1031-A-1 Flying Platform

    One-man, twin-engine, flying platform with two counter-rotating rotors turning on vertical axis inside ducted fan.

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    CCO - Creative Commons (CC0 1.0)

    This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's Terms of Use page.

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    Hiller Model 1031-A-1 Flying Platform

    One-man, twin-engine, flying platform with two counter-rotating rotors turning on vertical axis inside ducted fan.

    5 of 7

    CCO - Creative Commons (CC0 1.0)

    This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's Terms of Use page.

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    Hiller Model 1031-A-1 Flying Platform

    One-man, twin-engine, flying platform with two counter-rotating rotors turning on vertical axis inside ducted fan.

    6 of 7

    CCO - Creative Commons (CC0 1.0)

    This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's Terms of Use page.

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    Hiller Model 1031-A-1 Flying Platform

    One-man, twin-engine, flying platform with two counter-rotating rotors turning on vertical axis inside ducted fan.

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Display Status:

This object is on display in the Vertical Flight at the Steven F. Udvar-Hazy Center in Chantilly, VA.

Vertical Flight

In the mid-1950s, Hiller constructed a series of innovative Flying Platforms for an Army-Navy program as a one-man flying vehicle that the pilot could control with minimal training. The pilot simply leaned in the desired direction and the platform would follow. The platforms, which utilized the aerodynamic advantages of the ducted fan, were incapable of tumbling, because if the pilot leaned over too far, the platform would pitch up and slow down.

The 1031-A-1 is the second of the Flying Platform prototypes and was the first to operate out of ground effect (aerodynamic cushion caused by thrust hitting the ground). The Army contracted for a larger, improved model - the VZ-1 - but the extra engines required for redundancy if the primary failed made the platform so heavy that it was impossible for the pilot to control the craft kinesthetically (by leaning), defeating the purpose of the design.

Fan Diameter (x2):2.13 m (7 ft) each

Platform Diameter:2.54 m (8 ft 4 in)

Height: 2.13 m (7 ft)

Weight:Empty, 168 kg (370 lb)

Gross, 252 kg (555 lb)

Engine:2 x Nelson H-59 two-cycle engines, 40 hp each

Top Speed:26 km/h (16 mph)

Manufacturer:Hiller Aircraft, Palo Alto, Ca.,1957