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The article focuses on the Rocketdyne F-1 engines of the Saturn V rocket used in the Apollo 4 unmanned test flight in 1967. Topics covered include the pounds of thrust produced by each engine, a contract awarded by the U.S. Air Force to Rocketdyne for an engine that would become the F-1, and achieving the needed propulsion by placing a bomb in the combustion chamber. The Rocketdyne F-1 engine's importance in the Apollo 8 mission to the moon is also mentioned.

The article provides answers to a reader's inquiry regarding factors which causes engine mount damage in Optima rockets with stuffer tubes and suggests preventive and alternative method to solve the engine damage.

The article offers information on Synergistic Air-Breathing Rocket Engine (SABRE) and the construction of a test facility for demonstration runs of the SABRE engine core and associated technologies by Reaction Engines Ltd. In July 2016, Reaction Engines announced the signing of a development contract for the ground based demonstrator, under a commitment from the British government, while the European Space Agency's Technology Centre (ESTEC) additional amount.

The article discusses the development of reusable rocket engines powerful enough to fly a suborbital space plane from London, England to Sydney, Australia in four hours. Topics include the development and testing of a hydrogen-and-air-burning engine, called Sabre, by Reaction Engines of Culham in Oxfordshire, England, Sabre's key technological features, such as a chiller that processes air to burn with hydrogen, and advances in pulse jet engine technology.

The article reports on the first test launch of an aerospike rocket engine developed by ARCA Space Corp. in early 2018. Topics include U.S. National Aeronautics and Space Administration's (NASA) release of a fact sheet in the past years about its development of an aerospike engine with industry partner Lockheed Martin, the capabilities and features of the ARCA engine, and why the ARCA engine could significantly change and speed up NASA's ventures to other planets.

News briefs on aeronautics and astronautics research are presented. Aerospace industries firm Boeing Co. has conducted research on the use of the plants halophytes to produce biofuels for aviation fuel. The Morpheus planetary landing space vehicle was successfully tests in flight by the U.S. National Aeronautics & Space Administration (NASA). Aerospace industries firm Virgin Galactic will test its NewtonTwo rocket engine.

The article reports on the plan of low-cost launcher Firefly Space Systems to conduct the first development test of its Alpha vehicle's pressure-fed FRE-2 aerospike rocket engine in 2016. Topics covered include the comment of Firefly co-founder and chief executive officer (CEO) Tom Markusic on the aerospike concept, the design of the engine, and refinement of the FRE-2 configuration and extension of the spike with the help of Texas Advanced Computing Center at the University of Texas at Austin.

The article reports that aerospace company Blue Origin has completed flight tests of its cryogenic BE-3 deep-throttle engine which the company would use in its New Shepard reusable human spacecraft later in 2015. Topics discussed include testing of New Shepard to be made at the company's facility in West Texas facility, change required in New Shepherd from BE-3 into a BE-3U for upper stage use and views of Rob Meyerson, president of the secretive company that will sell tickets on New Shepard.

The article reports on the completion of Aerojet Rocketdyne's testing of the J-2X rocket engine for the U.S. National Aeronautics and Space Administration's Space Launch System which will not be able to use the engine in the foreseeable future due to its power and weight.

The article reports on the test-firing of a rocket propulsion system conducted in Israel led by Defense Ministry officials.

The article reports that the aerospace industries firm Virgin Galactic announced it has begun final testing of the RM2 hybrid rocket of its SpaceShipTwo sub-orbital space passenger vehicle.

The article focuses on testing of a gas generator built from parts for the F-1 first-stage rocket engine of the Saturn V rocket. It states that the U.S. National Aeronautics and Space Agency (NASA) is investigating the possibility of modernizing the F-1 engine for advanced kerosene-fueled booster rockets. It mentions NASA is developing digital images of old hardware to convert into computer-aided design files which could be used in additive manufacturing equipment and selective laser sintering.

Several letters to the editor are presented that praise the F1 rocket engine on the 50th anniversary of its test flight, respond to the article "Commercial Cooperation," by Frank Morring Jr., from the May 7, 2012 issue, about the Liberty launch system from aircraft manufacturer ATK, and correct an error in the April 9, 2012 issue about the AL-31 turbofan engine.

The article focuses on the development of of the launch abort engine (LAE) rocket engine by the aerospace industry firm Pratt & Whitney Rocketdyne. Testing of the engine which began on March 8, 2012 is discussed as part of the planned use of the engine in the CST-100 space vehicle for manned flight being created by Boeing Co for the U.S. National Aeronautics & Space Administration (NASA). It is noted that the LAE had originally been created for space vehicle programs which were canceled.

The article focuses on the aerospace industries firm Space Exploration Technologies Corp. (SpaceX). Lengthy delays in the company's development of a rocket engine for its Falcon 9 launch vehicle are examined in terms of their impact on Space X's ability to fulfill contracts for launching of artificial satellites by 2014.

The article reports on the test fire conducted by the Indian Space Research Organisation on August 28, 2016 of its scramjacket rocket engine, which will utilize oxygen from the atmosphere to reduce launch cost.

The article reports on launch of satellites with Polar Satellite Launch Vehicle's core alone (PSLV-CA) variant by the Indian Space Research Organisation (Isro) at Sriharikota in Andhra Pradesh, India in December 2015. Topics include testing of multiple rocket engine for the first time by India, launching of several Singaporean satellites with one rocket being a challenge for ISRO, testing ability of the engine to restart after being cut off and the TeLEOS-1 earth observation satellite.

The article reports on the growing interest in the propulsion process called pressure gain combustion within the global aerospace community. Topics discussed include the shift of emphasis from pulsed-detonation engines to continuous or rotating-detonation engines, a collaborative team conducting an experiment to demonstrate a single turbine stage integrated into a continuous detonation engine (CDE) and GHKN Engineering testing continuous detonation rocket engines (CDRE) for space applications.

The article offers astronomy news briefs as of December 2015 including testing on the R-25 rocket engines completed by the U.S. National Aeronautics and Space Administration (NASA), impact of shock waves from a supernova and meeting of scientists who will lead NASA's Europa exploration mission.

The article focuses on the success of India in developing and testing a high-thrust cryogenic rocket engine. Topics discussed include the use of the engine for the GSLV Mk-III launch vehicle, the gas generator cycle of the C25 automobile's cryogenic engine, and the fields used during the design of the engine including fluid dynamics, metallurgy, and rotor dynamics.

The article discusses developments in testing rocket motors using hybrid rocket systems. Topics covered include the testing of six free-flight sounding rockets by the educational non-profit organization SystemsGo in July 2014, the efforts of Utah State Propulsion Research Laboratory in testing a unique low input power arc-ignition system used in hybrid rockets, and the static firing tests of a swirling-oxidizer-flow-type hybrid rocket engine by the Hybrid Rocket Research Working Group in Japan.

The article reports on the argument of director K. Sivan of the Liquid Propulsion Center of Indian Space Research Organisation (ISRO) regarding the success of India in testing an indigenous cryogenic rocket engine.

The article discusses the plan of rocket engine developer Blue Origin under president Rob Meyerson to commence flight tests for its BE-3 hydrogen rocket while the BE-4 is still under development as a replacement for the Russian RD-180 thruster.

The article reports that Virgin Galactic has been re-ignited to start new powered test flights of its space aircraft SpaceShipTwo after a series of qualification testings using solid fuel in hybrid rocket motor.

The article reports that engineering students at Purdue University in Indiana have test fired a thrust chamber (TC) for a spacecraft that can take off and land vertically which is being developed by the U.S. National Aeronautics and Space Administration. Topics covered include the use of thin walls in the TC, and the thrust generation capacity of the chamber.

The article presents aerospace-related news briefs as of March 16, 2013. It states aerospace company Boeing will make the final demonstration test of orbital maneuvering and control engines developed by rocket engine design company Rocketdyn in July and mentions it is slated for Boeing's CST-100 capsule. It comments that Tunisia's air force accepted delivery of its first C-130J-30 tactical transport. It reports aerospace firm Orbital Sciences will test flight its Antares rocket early in 2013.

The article reports on the hybrid rocket engine testing that will be performed by project engineers of Bloodhound Inc. in South Africa.