28 July 2021
Japan successfully tests rocket engine propelled by shock waves
... during this process. As such, combustion takes place under almost constant volume, which in turn leads to greater fuel efficiency. In addition to adding heat at a constant volume, a detonation wave also rapidly compresses the mixture meaning that...
June 2014
The hypersonic grail: advances at DARPA, AFRL and beyond
... hypersonic cruise missile using conventional liquid hydrocarbon fuel Another example is the development of an advanced...-breathing rocket engine that cools incoming air with hydrogen fuel run through a heat exchanger. The engine, called Sabre...
June 2014
View from Inmarsat: the search for MH370 and using satellites for safety
... encouraged. It has significant operational safety benefits, airspace capacity benefits, and allows airlines to choose the most fuel-efficient routes, using FANS CPDLC communications. Assuming the systematic use of FANS by all capable aircraft would...
March 2015
On-orbit satellite servicing, insurance and lessons of Palapa B2 and Westar 6
...the life of satellites approaching retirement due to lack of fuel. On-orbit servicing may one day change the economics of ... the market for refuelling older satellites, which with additional fuel could continue to operate and generate revenue. Even for...
October 2015
Down to Earth: how to deorbit satellites and save money
...-of-mission. Due to this uncertainty, the operator faces the challenge of decommissioning a satellite that may have remaining fuel, which could have been used to extend its operational life and subsequent revenues. D-Orbit’s Decommissioning Device...
March 2016
Space Mining – the Reality of Tomorrow?
.... The Planetary Resources website states, ‘In orbit, spacecraft propellant is a multi-billion dollar industry with each pound of fuel worth more than an equivalent pound of gold on Earth. Certain asteroids are loaded with hydrogen and oxygen...
