how a pilot of a fighter plane breath inside his cockpit ??

 Have you ever wondered how a pilot of a fighter plane breath inside his cockpit ??

A fighter plane's cockpit is a closed, pressurized, and air-locked structure that requires external oxygen delivery systems to maintain ventilation and ensure a continuous oxygen supply for the pilot. These systems are integrated to provide effective ventilation and oxygenation. Here are some of the key oxygen delivery systems used in fighter planes:

Onboard Oxygen Generation System (OBOGS):

The Onboard Oxygen Generation System (OBOGS) extracts oxygen from the engine bleed air using molecular sieves. These sieves separate nitrogen and other gases from the air, providing a continuous supply of oxygen to the pilot. As long as the engine is running, OBOGS offers an unlimited oxygen supply.

Liquid Oxygen (LOX) Systems

       Liquid oxygen being fed into the oxygen cylinders in the cockpit of an 

US airforce A10 thunderbolt

        

In Liquid Oxygen (LOX) systems, oxygen is filled into a cylinder from an external source. It is stored in a liquid state and converted into gas as needed. This gas is then supplied to the pilot through a regulator system, which ensures the oxygen is delivered at the correct pressure and flow rate. LOX systems are known for their reliability and ability to supply high-purity oxygen to the pilot's mask.

Gaseous Oxygen Systems

Gaseous Oxygen Systems use high-pressure cylinders filled with gaseous oxygen. The gas is regulated and delivered to the pilot's mask as needed. While the mechanism is simple, the capacity is limited, requiring periodic refilling or replacement of the cylinders.

Pilot Oxygen Masks

Oxygen masks are crucial components of any oxygen supply system, providing a secure and efficient way to deliver oxygen to the pilot. These masks fit securely over the nose and mouth, ensuring a continuous and comfortable oxygen supply. Modern oxygen masks also integrate microphones for communication and mechanisms to ensure a proper fit and pressure.

Pressure Breathing Systems

At very high altitudes, the atmospheric pressure is inadequate for normal breathing. Pressure breathing systems force oxygen into the lungs under pressure, helping to overcome the reduced atmospheric pressure and ensuring adequate oxygenation. These systems are essential for maintaining consciousness and performance at extremely high altitudes.

Cockpit Pressurization

The environmental control system (ECS) in the cockpit maintains a pressurized environment, reducing the need for the pilot to breathe 100% oxygen at all times. This system simulates lower altitudes within the cockpit, enhancing pilot comfort and safety, and allowing for more efficient oxygen use.

In summary, the integration of these various oxygen delivery systems ensures that fighter pilots can breathe effectively and maintain optimal performance under the demanding conditions of flight