WikiNow lets you discover the news you care about, follow the topics that matter to you and share your favourite stories with your friends.

© WikiNow

It Takes a Village to Raze a Test Stand - ArmsControlWonk.com

In post-summit comments, the President indicated that the DPRK had agreed to destroy a “missile engine testing site,” which the U.S. identified “because of the heat.” This has brought up the question of which site does he mean? Dave Schmerler did an ...

Turlock native among group vying to send rocket to space - The Turlock Journal

Along with 70 other student members from two colleges and several departments, Betady has spent the last 15 months designing and building a rocket. Such a task typically takes several years in the aerospace industry, as building a liquid fuel rocket ...

A rocket that devours itself - The Economist

Like firework rockets (themselves solid-fuelled), once the metaphorical blue touchpaper has been lit, the fuel burns as it will. Liquid-fuelled rockets are preferred as satellite launchers because their thrust can be tuned by changing the flow of ...

International Space Development Conference truly is international - SpaceFlight Insider

A two-thirds scale model of Berkley's liquid propellant rocket is displayed next to a banner for ISDC 2018. Photo Credit: Joe Latrell / SpaceFlight Insider. LOS ANGELES — Attendees from over a dozen countries including Japan, Romania, Turkey, India ...

Book Review: 'Ignition!' Explores the 'Golden Age' of Rocketry - Ricochet.com

Today, rocket science commonly refers to anything dealing with space. Originally, it meant rocket design, especially fuel development. “Ignition!: An Informal History of Liquid Propellants,” by John D. Clark, harks back to those day. While informal, it ...

Isro team celebrates in unison the Pearl Jubilee at LPSC - Times of India

... had worked shoulder to shoulder with Nambi Narayanan who was behind the development liquid propulsion and Vikas engine. It was those dreams of Nambi Narayanan that offered the wings to develop and introduce liquid fuel rocket technology in India in ...

Robert Goddard Was the Father of American Rocketry. But Did He Have Much Impact? - Air & Space Magazine

Americans are justifiably proud of Robert H. Goddard, the Massachusetts professor who built and flew the world's first liquid-fuel rocket in 1926. Goddard spent his entire life perfecting the invention he knew could one day be made to fly into space ...

Rocket booster crashes near Chinese town after Apstar-6C satellite launch - GBTIMES

However, footage from the morning following the launch shows the mangled wreckage of a liquid propellant rocket booster in a field near houses in Heba Town in Shiqian County. The boosters separate from the rocket core after use, falling to Earth while ...

ISRO to source fuel component from NFL - Business Line

National Fertilizer Ltd (NFL) has won an order from the Indian Space Research Organisation (ISRO) to supply di-Nitrogen tetroxide (N2O4), which forms an integral part of the liquid propellant used in launching space rockets. “We won this contract ...

Ready For Liftoff: Ursa Major Anchors Park 4040 Industrial Park - Bisnow

“Our suites at Park 4040 will be Ursa Major's new headquarters, where we will design and assemble state-of-the-art liquid propellant rocket engines for a number of commercial and defense applications,” Ursa Major founder and CEO Joe Laurienti said.

Engineering Mars commercial rocket propellant production for the Big Falcon Rocket (part 2) - The Space Review

The resulting hydrogen will feed the makeup hydrogen needed to produce methane gas needed in the Sabatier reactor (covered in the previous article) to complete the production of liquid methane fuel. The oxygen is needed to produce the oxidizer to burn ...

Private Chinese space launch company Landspace targets 2020 debut of methane-liquid oxygen rocket - GBTIMES

In a presentation (Chinese) at the first China International Commercial Space Symposium on Monday in Harbin, northeast China, senior vice president of Landspace Zhang Long presented a larger planned liquid-propellant launch vehicle, that could debut in ...

UCLA Rocket Project Aims for the Stratosphere - UCLA Samueli School of Engineering Newsroom (press release)

These rockets are the simplest, and can be the easiest to build and launch, said Spearrin, who notes these propellants are used in fireworks and for model rocketry. One step up are hybrid rockets, which typically use a solid fuel but a liquid or gas ...

The Rocket Fuel Rivalry Shaping the Future of Spaceflight - Popular Mechanics

Liquid rocket engines feature tanks of fuel inside the boosters, one for fuel and another for oxidizer. The two substances, chilled to super-low temperatures so they don't convert to gas, are mixed inside the engine at the time of launch, ignited, and ...

Indian GSLV lofts GSAT-6A - NASASpaceflight.com

GSLV's second stage, which is closely related to PSLV's second stage, burns hypergolic liquid propellants, while the rocket's third stage uses cryogenic fuel. The GSLV made its maiden flight in April 2001, carrying the experimental GSAT-1 ...

Beijing Needs Boost in Rocket Research and Development - Sputnik International

Liquid propellant engines can produce great thrust that can reach 800 tons, and can be used in the launch of heavy rockets, Song said. According to Song, a liquid fuel engine is also more controllable than a solid propellant engine, as it can release ...

The rocket thruster that uses air as fuel - Eureka

The rocket thruster was tested with xenon, then a nitrogen-oxygen mixture, then solely with atmospheric air molecules. The team has more work to do before the system can be fitted to a satellite, but this is solid evidence that such a system is possible.

NASA's Nuclear Thermal Engine Is a Blast From the Cold War Past - Popular Mechanics

A nuclear thermal propulsion rocket engine would use a small nuclear reactor to generate heat from uranium fuel. That thermal energy would then be transferred to a liquid propellant, probably liquid hydrogen, which expands into a gas and is shot out ...

Orbital ATK, EELV, and the Chinese word for crisis - The Space Review

General Bernard Schriever was the father of the US Air Force's ballistic missile force and he was responsible for the development of America's three original liquid-propellant space rockets: Atlas, Titan, and Thor (later called Delta). With dozens of ...

N Korea likely making solid-fuel rocket engines at Hamhung factory: 38 North - Asia Times

Large solid-fuel rocket engines for North Korea's ballistic missile program are most likely being made at a factory complex near Hamhung, according to an analysis posted on Tuesday by 38 North. Hamhung is North Korea's second largest city and is ...

A liquid-propellant rocket or liquid rocket is a rocket engine that uses liquid propellants. Liquids are desirable because their reasonably high density allows the volume of the propellant tanks to be relatively low, and it is possible to use lightweight centrifugal turbopumps to pump the propellant from the tanks into the combustion chamber, which means that the propellants can be kept under low pressure. This permits the use of low-mass propellant tanks, resulting in a high mass ratio for the rocket.

Schematic of a pump-fed liquid rocket

A liquid-propellant rocket or liquid rocket is a rocket engine that uses liquid propellants. Liquids are desirable because their reasonably high density allows the volume of the propellant tanks to be relatively low, and it is possible to use lightweight centrifugal turbopumps to pump the propellant from the tanks into the combustion chamber, which means that the propellants can be kept under low pressure. This permits the use of low-mass propellant tanks, resulting in a high mass ratio for the rocket.

An inert gas stored in a tank at a high pressure is sometimes used instead of pumps in simpler small engines to force the propellants into the combustion chamber. These engines may have a lower mass ratio, but are usually more reliable. and are therefore used widely in satellites for orbit maintenance.

Liquid rockets can be monopropellant rockets using a single type of propellant, bipropellant rockets using two types of propellant, or more exotic tripropellant rockets using three types of propellant.

Some designs are throttleable for variable thrust operation and some may be restarted after a previous in-space shutdown. Liquid propellants are also used in hybrid rockets, in which a liquid oxidizer is generally combined with a solid fuel.