Table of Contents
Can you create thrust without fuel?
That is, unless you have an engine that can generate thrust without fuel. Called an EmDrive, the physics-defying contraption ostensibly produces thrust simply by bouncing microwaves around inside a closed, cone-shaped cavity, no fuel required.
Can rockets fly without fuel?
Rockets and engines in space behave according to Isaac Newton’s third law of motion: Every action produces an equal and opposite reaction. When a rocket shoots fuel out one end, this propels the rocket forward — no air is required.
How do you get rid of model rocket engines?
Simply soak the rocket engine in water for about 24 hours. This will disintegrate the product and render the engine harmless. Then you can put it into your trash.
What is the Mach effect?
Mach effects are transient variations in the rest masses of objects that simultaneously experience accelerations and internal energy changes.
Is a EmDrive possible?
The “impossible” EmDrive has failed international testing in three new papers. The idea was always far out, but that’s part of how science moves forward. EmDrive works (or not) by pumping microwaves into an asymmetrical closed chamber.
Which fuel is best for rockets?
In combination with an oxidizer such as liquid oxygen, liquid hydrogen yields the highest specific impulse, or efficiency in relation to the amount of propellant consumed, of any known rocket propellant.
What is the shelf life of model rocket engines?
Estes engines do not have a shelf life, so if they have always been stored in a cool dry place, and were not exposed to excessive humidity, and/or temperature cycling—extreme heat and extreme cold (140 degrees to 32 degrees Fahrenheit)—your engines should perform properly.
What do you need to make a rocket engine?
It depends on the type of rocket. Model rocket engines need 2 main ingredients: a fuel and an oxidizer. Your average model rocket uses some form of sugar (such as sucrose) as the fuel, and potassium nitrate as the oxidizer (or propellant).
How to make a sugar based rocket fuel?
Sugar-based model rocket fuels are sometimes known as “R-Candy.” They work by feeding a steady supply of oxygen to the burning sugar via an oxidizer (in this case, potassium nitrate) to create a powerful, sustained form of combustion. 4 Add the Karo syrup and water to the saucepan.
How do you get rid of excess mass in a rocket?
Getting rid of excess mass. Multistage rockets use the idea of keeping mass as low as possible. As soon as the fuel from one tank is used up, the fuel tanks and the rocket engine(s) for that tank are released. The remaining stage of the rocket now has less mass so less thrust is needed to accelerate it.
What makes a model rocket engine stay in place?
The clip is what prevents the motor from being ejected. The red tube at the front of the motor mount also helps hold the model rocket engine in place during the thrust and coast phases. It is hollow to allow the ejection charge gasses to burst forward into the rocket body tube and eject the parachute.