## Would a pulse jet work in space?

Pulse jets are predicted to revolutionize air travel (but not space travel) if they work. They rely on deflagration (when you let something burn at relatively low pressures) and the material escapes slowly (slow like subsonic speeds not slow as in how you get out of bed at 6:00 am).

## Is Electric jet propulsion possible?

A team of researchers has created a prototype jet engine that’s able to propel itself forward using only electricity. Their study was published in AIP Advances in May 2020.

Can you use engines in space?

Turbine engines and propellers use air from the atmosphere as the working fluid, but rockets use the combustion exhaust gases. In outer space there is no atmosphere so turbines and propellers can not work there. This explains why a rocket works in space but a turbine engine or a propeller does not work.

### How do you rocket engines work in space?

In space, rockets zoom around with no air to push against. What’s going on? 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 fast can a pulse jet go?

The speed record for control-line pulsejet-powered model aircraft is greater than 200 miles per hour (323 km/h).

Do satellites use fuel?

Satellites do carry their own fuel supply, but unlike how a car uses gas, it is not needed to maintain speed for orbit. It is reserved for changing orbit or avoiding collision with debris.

## How efficient is a pulse jet engine?

However, the pulsejet is less fuel-efficient. For the same amount of fuel consumed, a turbojet will pump roughly four times as much air and generate correspondingly more thrust. The reason is that the various energy conversions in the pulsejet cycle take place under less than optimal conditions.

## How does a V1 pulse jet work?

This was the model of pulsejet used on V1. A pulse jet engine is basically a combustion chamber with an inlet valve on one end and an opening on the other, and some force of fuel inlet system. In the simplest models, fuel vapour is sucked from a fuel source via a venturi and a spark plug ignites the mixture in chamber.

How are jet engines used to fly from ground to space?

We’re on the verge of having aircraft that can fly from the ground up to the edge of space using air and electricity alone. Traditional jet engines create thrust by mixing compressed air with fuel and igniting it. The burning mixture expands rapidly and is blasted out of the back of the engine, pushing it forwards.

### Why are fighter jets not able to fly into space?

This is less than a fifth of the way to space. Part of the reason fighter jets can’t fly this high is their power source. Jet engines rely on air intake to function properly. Once you get above certain heights the air is too thin for jet engines to work efficiently so they end up shutting…

### Can a Sabre jet engine be used outside the atmosphere?

SABRE brings a step-change in technology – making air travel at over five times the speed of sound possible. Unlike standard jet engines, they can also operate in a rocket mode outside the atmosphere, creating the next generation of truly reusable space launch vehicles.

Are there any jet engines that can fly?

But there are several hurdles to overcome before the technology can propel an actual plane. For a start, the team tested mini thrusters 80 millimetres long, and a commercial airliner would need some 10,000 of them to fly, which makes the current design too complex for aircraft of that size.

We’re on the verge of having aircraft that can fly from the ground up to the edge of space using air and electricity alone. Traditional jet engines create thrust by mixing compressed air with fuel and igniting it. The burning mixture expands rapidly and is blasted out of the back of the engine, pushing it forwards.

## What kind of engines are used for spacecraft propulsion?

1 SABRE – a lightweight hydrogen fuelled turbojet with precooler 2 ATREX – a lightweight hydrogen fuelled turbojet with precooler 3 Liquid air cycle engine – a hydrogen fuelled jet engine that liquifies the air before burning it in a rocket engine 4 Scramjet – jet engines that use supersonic combustion

SABRE brings a step-change in technology – making air travel at over five times the speed of sound possible. Unlike standard jet engines, they can also operate in a rocket mode outside the atmosphere, creating the next generation of truly reusable space launch vehicles.

But there are several hurdles to overcome before the technology can propel an actual plane. For a start, the team tested mini thrusters 80 millimetres long, and a commercial airliner would need some 10,000 of them to fly, which makes the current design too complex for aircraft of that size.