Why are pulse jets not used?
Performance: pulse jet engines have poor performance, as they have low thrust and speed compared to other types of jet engines. Pulse-jet engines cannot operate at high altitudes or supersonic speeds, as they need a lot of oxygen and air pressure to ignite the fuel. Pulsejets of the same thrust levels of similar rocket engines redefine loud. They are painfully loud. Even very small pulsejets. Certainly, if you have noisy neighbours who won’t shut up, get yourself a pulsejet and fire it up.
What is the pulse jet engine used for?
They have been used to power model aircraft, experimental go-karts, and unmanned military aircraft such as cruise missiles and target drones. Working mechanism of a valveless pulsejet engine. The basic idea is that the column of air in the long exhaust pipe functions like the piston of a reciprocating engine. Pulsejets are used today in target drone aircraft, flying control line model aircraft (as well as radio-controlled aircraft), fog generators, and industrial drying and home heating equipment.