(Nikkei: June 16, 2015 – p. 38)
A Japan Aerospace Exploration Agency institute announced on June 15 that it has succeeded in an engine combustion experiment for recycling rockets.
Rockets that are currently used are disposable, but if they are built to be reused more than 100 times, operating costs can be reduced by an estimated 90 percent.
In tests the temperature inside the combustion chamber of an experimental engine built by the Institute of Space and Astronautical Science (ISAS) remained lower than in the case of conventional engines. It successfully underwent the processes of combustion and termination without a hitch.
The ISAS envisages using this engine in an observation rocket, which will fly up to 100 km high with experimental devices and will land vertically on a launch area after conducting a zero-gravity experiment. It plans to undertake this as a national project from fiscal 2016. If funding is allocated, ISAS estimates the launch of a maiden flight within four years.