hcgcgygxyxxy
propulsion is when air pushes an airplane
Propulsion is a noun, not a verb. Only verbs have tenses.
The two main types of friction are kinetic and static.
Plasma [propulsion works like a jet with ions for the gas or matter pushed out.
hcgcgygxyxxy
The main source of propulsion.
LIQUID PROPELLENTS OR SOLID PROPELLANTS
Main propulsion is the function of the marine main engine.
oil and gas
Main propulsion is the function of the marine main engine.
Main engine is used for propulsion of ship.
A propeller is completely external and is the main source of propulsion for a airplane with a piston or turbojet engine. A turbofan is more enclosed and provides some propulsion along with also cooling the jet engine that is the main source of propulsion.
Mainly balance and locomotion. Some use them to attract a mate.
Fuel & Gas
Umm...the question is a little vague (is it for a project, are there more details?), so I'll offer as much as I find relevant. You can split it into arm propulsion or leg propulsion. You can split it into the four strokes: butterfly, backstroke, breaststroke, freestyle. You can split it into surface propulsion and underwater propulsion. Be more specific and I can help you more.
The main rotor give it lift and forward propulsion