Why the spark ignition system in aircraft is the most used?

Question

is there another systems of ignition for aircraft?

Answer 1

reciprocating aircraft engines that burn gasoline use a dual magneto type of ignition system. (it is basically a pair of electric generators that produce more electricity the more rpm's you turn them.) aircraft diesel engines run on the same principle as any diesel...under high compression, temperature is increased thereby igniting the diesel fuel. in jet engines they use ignitor plugs or spark shower plugs. (ignitor plugs are basically glow plugs, they have an  electric coil on the tip which glows red hot igniting the fuel. it glows continuously to ensure constant burn and prevent flame out.) spark shower plugs create a continous shower of sparks to ignite the jet fuel. (jet fuel is basically kerosene that has additional additives and is cleaner than regular kerosene.

Answer 2

With the exception of diesels, all piston-type engines, in cars, truck, boats, airplanes, construction machines, or any other vehicle, use a "spark ignition system."  You need to do an internet search on "piston engine cycles" to find out how these systems work.

Older ignition systems used a mechanical firing device with electrical contacts and condenser.  More modern systems tend to be all-electronic, without contacts to wear out.

Answer 3

As far as we know, my captain fiance and I, there is no other ignition source.

Answer 4

In principle you could build a diesel powered aircraft, but a diesel engine is too heavy relative to its power output to be an efficient power unit for flying.

Answer 5

As for piston engines in aircraft they use spark plugs powered by magnetos. There are 2 magnetos..each one can spark all cylinders if one fails. Having 2 magnetos and 2 spark plugs also aids in even fuel burn in cylinder and safety/redundancy.

I belive the few aviation diesels dont need spark plugs.

As for Turbine engines..Turboprops and Jets. They use spark ignition for start, restart, and for certain atmopheric conditions and flight modes such as takeoff and landing.

A turbine engine only needs ingition to start since they are self igniting once started. If one fails (flameout) in flight the igniters (on some) will automatically come on to attemp a relight. We also turn then ON (continuous ignition) for flying in iciing condtions and for takeoff and landing. (Procedure in a Beechjet 400)