What is the most frequent type of fire on reciprocating engines during the start sequence?
Perhaps the most common type of aircraft fire is one that erupts during engine start. … Excess fuel makes its way into the carburetor intake, then the engine backfires through the carburetor, igniting the fuel along with the dirty air filter. The book says to keep cranking the engine if this happens.
What are the common fire hazards in the aircraft?
Pilots can face four types of aircraft fires — fires during engine start, electrical fires, in-flight engine fires, and post-crash fires.
What type of fire extinguisher should be used for an induction system fire on a reciprocating engine?
GROUND OPERATION AND SERVICING. What is the proper way to extinguish an induction system fire that occurs when starting a reciprocating engine? Keep the engine running and blow the fire out. If this does not work, use a CO2 fire extinguisher directed into the carburetor air inlet.
What type of fire extinguisher would be best to use on turbine jet engine?
CO2 is not recommended for hand-held extinguishers for internal aircraft use. Older aircraft with reciprocating engines used CO2 as an extinguishing agent, but all newer aircraft designs with turbine engines use Halon or equivalent extinguishing agent, such as halocarbon clean agents.
What is the greatest danger in fighting an electrical fire?
The danger of using a water fire extinguisher on an electrical fire is that you put yourself at risk of receiving an electric shock. Water conducts electricity, and although the fire may be preoccupying your thoughts and appear to be the only danger, there is still an electrical current to deal with.
Can you over Prime an engine?
Over-priming is the leading cause for engine fires on the ground. … When you prime an engine, you’re putting fuel into the cylinders (or the intake manifold) so that the engine can fire. Pilots tend to over-prime the engine by priming too much or too many times (we’re guilty of it too).
Can you fire a gun on an airplane?
There are four things that might happen if a person were to fire a gun on an airplane: The bullet simply goes through the aluminum skin of the plane and punches a small hole as it exits. … The bullet hits wiring hidden in the walls or the floor. The bullet hits a fuel tank.
Can planes catch fire?
Fire in the air is one of the most hazardous situations that a flight crew can be faced with. Without aggressive intervention by the flight crew, a fire on board an aircraft can lead to the catastrophic loss of that aircraft within a very short space of time.
What stops electrical fire?
If an electrical fire starts
If the device that is causing the electrical fire is found, and you can reach the cord and outlet safely, unplug it. 2. Add sodium bicarbonate. If the fire is small, you may put it out by smothering it with baking soda.
What type of fire extinguisher is used for an aircraft brake wheel fire?
Dry chemical has limited cooling capacity but is an effective extinguishing agent. Once the tires are deflated, any extinguishing agent may be safely used as there is no further danger of explosion.
What is the difference between Jet A and Jet B?
The most commonly used fuels for commercial aviation are Jet A and Jet A-1, which are produced to a standardized international specification. The only other jet fuel commonly used in civilian turbine-engine powered aviation is Jet B, which is used for its enhanced cold-weather performance.
What are the two factors that affect the antiknock characteristics of fuel?
Cetane number, oxygen content, and viscosity of fuel are significant factors affecting the ignition delay. The use of fuels with high cetane numbers results in shorter ignition delay. And the engine load results in shorter ignition delay due to the increase in gas temperature inside the chamber .
What are the 4 types of fire extinguishers?
There are four classes of fire extinguishers – A, B, C and D – and each class can put out a different type of fire. Multipurpose extinguishers can be used on different types of fires and will be labeled with more than one class, like A-B, B-C or A-B-C.
How does a typical fire bottle work Engine & APU?
The engines and APUs have their own fire extinguishing systems, which have a liquid halogenated extinguishing agent and pressurized gas stored in fixed (typically steel) fire extinguisher containers, which are discharged on pilot command. … In ground, the APU fire extinguishing system can operate automatically.
What is the importance of a double shot system?
The Spectrex system is an automatic fire detection and extinguishing system, specifically designed for Engine Compartments of combat vehicles, providing increased survivability against fires initiated by IED’s and penetrating munitions.