I. What is Orbital Velocity? Orbital velocity is the velocity at which an object must travel in order to stay in orbit around another object, such as a planet or a star. In simple terms, it is the speed at which an object must move horizontally to counteract the force of gravity pulling it towards … Read more
I. What is an Air-breathing Engine? An air-breathing engine is a type of propulsion system that relies on atmospheric oxygen to generate thrust. Unlike rocket engines, which carry their own oxidizer, air-breathing engines take in air from the surrounding environment and use it to burn fuel, creating the necessary combustion to produce thrust. These engines … Read more
I. What is the Raptor Engine? The Raptor Engine is a type of rocket engine developed by SpaceX, the private aerospace company founded by Elon Musk. It is a full-flow staged combustion engine that uses liquid methane and liquid oxygen as propellants. The Raptor Engine is designed to power SpaceX’s next-generation spacecraft, the Starship, which … Read more
I. What is Perigee? Perigee is a term used in astronomy and aerospace engineering to describe the point in an object’s orbit around a celestial body where it is closest to that body. In the case of Earth’s orbit, perigee refers to the point in a satellite or spacecraft’s orbit where it is closest to … Read more
I. What is Mass Fraction? Mass fraction is a term used in engineering and physics to describe the ratio of the mass of one component of a mixture to the total mass of the mixture. It is often expressed as a percentage or a decimal. In simpler terms, mass fraction tells us how much of … Read more
I. What is a Hall Effect Thruster? A Hall Effect Thruster, also known as a Hall thruster or an ion thruster, is a type of electric propulsion system used in spacecraft to provide thrust for maneuvering and propulsion. It operates by accelerating ions to generate thrust, making it a highly efficient and effective method of … Read more
I. What is a VASIMR Engine? The Variable Specific Impulse Magnetoplasma Rocket (VASIMR) engine is a type of electric propulsion system that uses radio waves and magnetic fields to heat and accelerate a propellant. It was developed by NASA physicist Franklin Chang-Diaz and his team in the 1970s and has since been considered a promising … Read more
I. What is Max Q (Maximum Dynamic Pressure)? Max Q, short for maximum dynamic pressure, is a critical point during a rocket launch when the vehicle experiences the highest aerodynamic stress. This occurs when the rocket is traveling at high speeds through the Earth’s atmosphere, causing the air pressure to be at its maximum. Max … Read more
I. What is Rocket Exhaust? Rocket exhaust refers to the gases and particles expelled from a rocket engine during its operation. This exhaust is a byproduct of the combustion process that occurs within the engine to generate thrust and propel the rocket through space. Rocket exhaust plays a crucial role in the propulsion of rockets … Read more
I. What are Hypergolic Propellants? Hypergolic propellants are a type of rocket fuel that ignite spontaneously upon contact with each other, eliminating the need for an external ignition source. This unique characteristic sets hypergolic propellants apart from other types of rocket fuels, such as cryogenic or solid propellants, which require an ignition system to initiate … Read more