A submarine can submerge by filling ballast and trimmer tanks with sea water. The additional weight will take the submarine down. To resurface, the submarine will blow the sea water out of the tanks using compressed air. The air in the tanks make the submarine buoyant, so it rises and floats on the surface. Though a stationary submarine can submerge in this way, it usually submerges going forward and using diving plane (fins) to steepen the dive, so getting under the surface faster.
In war a submarine can hide under the water and attack without being seen.
Yes, it can. - Jet engines have no propeller.
B
Where the gun fires through the propeller, the two are mechanically connected and timed so that the rounds will pass between the blades of the propeller.
Yes, you can make a balloon fly using propellers or an electric motor to provide thrust. By attaching a propeller or motor to the balloon, you can create lift and propulsion to make it fly without the need for hot air or helium.
as far as i can remember your not supposed to go to the submarine.
propulsion makes something move forward,for example;airplanes have propulsion because without propulsion it would not move forward.
There was no submarine that could do that as early as 1945
You get the jetpack if u have it and dance
Nuclear-powered submarines operate using a nuclear reactor that generates heat through nuclear fission, typically using uranium fuel. This heat is used to produce steam, which drives turbines connected to the submarine's propeller, allowing for underwater propulsion. The reactor provides a long-lasting power source, enabling submarines to operate for extended periods without surfacing for fuel. Additionally, the use of nuclear power allows these submarines to remain submerged for long durations, enhancing their stealth and operational capabilities.
If a ship's propeller breaks down or is lost at sea, the vessel will lose its ability to maneuver and maintain speed, rendering it effectively adrift. The crew would need to deploy emergency protocols, such as using anchors to stabilize the ship or calling for assistance. Without propulsion, the ship may drift with currents and winds, potentially leading to collisions or grounding. In such situations, timely communication with maritime authorities is crucial for rescue operations.
Do you mean a glider? An aircraft that flies without propulsion? Soaring.