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Hiller "Six Pack" Pulse Reactor Engine

National Air and Space Museum

Object Details

Manufacturer
Hiller Aircraft Company
Physical Description
Prototype pulse reactor; 6 horseshoe-shaped combustors; designed for V/STOL applications; called "Six Pack"; side shields missing.
Summary
In the early 1960s, under U.S. Navy contracts, Hiller Aircraft Company developed a pulse reactor lift engine for vertical/short take-off and landing (V/STOL) applications that would be competitive with turbojets, but with reduced complexity and cost. Simplicity of the concept was that it had no moving parts, and could operate near the ground without sustaining foreign object damage.
Consisting of package of six pulse reactor tubes, the Hiller engine was a pulsating combustion type with a pulse rate of approximately 100 cycles per second. Following operation on a Navy variable attitude stand under various conditions, it was concluded that the engine was not suitable for use as a V/STOL engine because it would neither start nor operate in a nose-up position (exhausting into the wind) at elevated air velocities; and maximum thrust was approximately 5 percent below that obtained by Hiller. The 0.71 thrust/weight ratio was also considered unsatisfactory for V/STOL aircraft.
Credit Line
Transferred from U.S. Navy, Naval Air Propulsion Center, Trenton, New Jersey.
Circa 1960s
Inventory Number
A19820088000
Restrictions & Rights
Usage conditions apply
Type
PROPULSION-Turbines (Jet)
Materials
SteelAluminum, Magnesium AlloyCopper AlloySynthetic FabricAdhesive
Natural Fabric
Paint
Rubber
Ceramic
Nickel Plating
Phenolic Resin
Cadmium Plating
Anodized Aluminum
Dimensions
Width 121.9 cm (48 in.), Height 152.4 cm (60 in.), Length 183 cm (72 in.) (Approximate)
Country of Origin
United States of America
See more items in
National Air and Space Museum Collection
National Air and Space Museum
Record ID
nasm_A19820088000
Metadata Usage (text)
Not determined
GUID (Link to Original Record)
http://n2t.net/ark:/65665/nv9258b189c-661c-4906-8139-e4d16bbcf83c

Related Content

  • Propulsion

    Air and Space Museum

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