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Featured researches published by Nobuji Kato.


49th AIAA/ASME/SAE/ASEE Joint Propulsion Conference | 2013

Small Rocket Launch Experiment using Low Melting Point Thermoplastic Fuel/N2O Hybrid Rocket

Yutaka Wada; Ryuichi Kato; Nobuji Kato; Keiichi Hori

Hybrid rocket using Low Melting Temperature Thermoplastics (LT) fuel as a solid fuel has been studied. The LT fuel has higher regression rate than classical inert polymer fuel such as a Hydroxyl-Terminated-PolyButadiene (HTPB), and an excellent mechanical property as same as solid propellants. Efforts has been paid successfully to enhance the adhesion property against metallic casing and linear material, and thus, the fuel looks promising for the application to large scale motors. As the first step, small hybrid rocket was launched by LT/N2O hybrid combination on the basis of the experimental data of regression rate using a lab. scale hybrid rocket motor. In this paper, the detailed discussion of this successful launch is presented.


Transactions of The Japan Society for Aeronautical and Space Sciences, Space Technology Japan | 2014

A Study on Combustion Efficiency Improvement of Low Melting Temperature Thermoplastics as a Hybrid Rocket Fuel

Yutaka Wada; You Kawabata; Kotaro Shinnakazaki; Ryuichi Kato; Nobuji Kato; Keiichi Hori


Transactions of The Japan Society for Aeronautical and Space Sciences, Space Technology Japan | 2018

Experimental Investigation of Fuel Regression Rate of Low-Melting-Point Thermoplastic Fuels in the Altering-Intensity Swirling-Oxidizer-Flow-Type Hybrid Rocket Engine

Yo Kawabata; Ayana Banno; Yutaka Wada; Kohei Ozawa; Toru Shimada; Nobuji Kato; Keiichi Hori; Ryo Nagase


information security | 2017

Study of Melting Fuel Behavior at High Oxidizer Mass Flux for Hybrid Rockets

Ayana Banno; Yo Kawabata; Yutaka Wada; Nobuji Kato; Keiichi Hori


information security | 2017

Evaluation of viscoelasticity by axial tensile test of the low melting point thermoplastic fuel for hybrid rocket

Yo Kawabata; Mitsuru Yamamoto; Ayana Banno; Yutaka Wada; Nobuji Kato; Keiichi Hori; Ryo Nagase


The Proceedings of Mechanical Engineering Congress, Japan | 2017

Evaluation of mechanical properties of low melting point temperature thermoplastic fuels for hybrid rocket with resin powder added

Yo Kawabata; Yutaka Wada; Nobuji Kato; Keiichi Hori; Ryo Nagase


The Proceedings of Mechanical Engineering Congress, Japan | 2017

Temperature Field Measurement of Low Melting Point Fuel in Boundary Layer Combustion Type Hybrid Rockets

Ayana Banno; Yo Kawabata; Yutaka Wada; Nobuji Kato; Keiichi Hori


The Proceedings of Mechanical Engineering Congress, Japan | 2016

Study on mechanical properties and combustion characteristics of low melting temperature point fuels for hybrid rocket

Yo Kawabata; Yutaka Wada; Nobuji Kato; Keiichi Hori; Ryo Nagase


International Journal of Energetic Materials and Chemical Propulsion | 2016

OBSERVATION OF COMBUSTION BEHAVIOR OF LOW MELTING TEMPERATURE FUEL FOR A HYBRID ROCKET USING DOUBLE SLAB MOTOR

Yutaka Wada; Yo Kawabata; Ryuichi Kato; Nobuji Kato; Keiichi Hori


Transactions of The Japan Society for Aeronautical and Space Sciences, Space Technology Japan | 2012

A Study on Low Melting Point Thermoplastic Solid Propellant

Akimasa Tsutsumi; Keiichi Hori; Yasuhiro Morita; Ryojiro Akiba; Hiroshi Hasegawa; Keishi Sasaki; Nobuji Kato

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Keiichi Hori

Japan Aerospace Exploration Agency

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Yo Kawabata

Chiba Institute of Technology

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Ayana Banno

Chiba Institute of Technology

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Ryo Nagase

Chiba Institute of Technology

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Akimasa Tsutsumi

Graduate University for Advanced Studies

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Kohei Ozawa

Kyushu Institute of Technology

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Mitsuru Yamamoto

Chiba Institute of Technology

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