I. What is Orbital Decay? Orbital decay is a phenomenon that occurs when a satellite or spacecraft in orbit around a celestial body, such as the Earth, gradually loses altitude and eventually re-enters the atmosphere. This can be caused by a variety of factors, including atmospheric drag, gravitational forces, and other external influences. Orbital decay … Read more
I. What is a Star Tracker? A star tracker is a device used in spacecraft, rockets, and other propulsion systems to accurately determine the orientation of the vehicle in space. By tracking the positions of stars in the sky, a star tracker can provide precise information about the spacecraft’s attitude and position relative to the … Read more
I. What is a Multistage Rocket? A multistage rocket is a type of rocket that is composed of multiple stages, each containing its own engines and propellant. As the rocket ascends into space, these stages are sequentially jettisoned to reduce the weight of the rocket and increase its efficiency. This design allows the rocket to … Read more
I. What is Propellant Flow Rate? Propellant flow rate is a crucial parameter in rocketry that refers to the rate at which propellant is consumed by a rocket engine during operation. It is typically measured in units such as pounds per second or kilograms per second, depending on the system of measurement used. The propellant … Read more
I. What is a Vacuum Engine? A vacuum engine is a type of propulsion system used in rocketry to generate thrust in the vacuum of space. Unlike traditional rocket engines that rely on combustion of fuel and oxidizer to produce thrust, vacuum engines operate by expelling a high-velocity stream of gas or plasma to propel … Read more
I. What is a Space Propellant Depot? A Space Propellant Depot is a storage facility located in space that is used to store and distribute propellants for spacecraft. These depots are essential for long-duration space missions, as they allow spacecraft to refuel and continue their journey without having to return to Earth for more fuel. … Read more
I. What is a De Laval Nozzle? A De Laval Nozzle is a type of nozzle used in rocket propulsion systems to accelerate the flow of a fluid or gas to supersonic speeds. It is named after its inventor, Gustaf de Laval, a Swedish engineer who developed the nozzle in the late 19th century. The … Read more
I. What is Ballistic Coefficient? The ballistic coefficient of a projectile is a measure of its ability to overcome air resistance in flight. In simpler terms, it is a numerical representation of how streamlined an object is as it moves through the air. The higher the ballistic coefficient, the more aerodynamic the object is, and … Read more
I. What is Spacecraft Propulsion? Spacecraft propulsion is the technology that enables spacecraft to move through space. Without propulsion systems, spacecraft would be unable to travel to other planets, moons, or even orbit the Earth. Propulsion systems are essential for launching spacecraft into space, maneuvering them once they are in orbit, and even changing their … Read more
I. What is a Centrifugal Fuel Pump? A centrifugal fuel pump is a type of pump that uses centrifugal force to move fuel from a storage tank to the combustion chamber of an engine. This type of pump is commonly used in rocketry to deliver fuel to the rocket’s engines at high speeds and pressures. … Read more