Hi, We are building a turbojet engine / gas turbine engine for our graduation project. We were looking out for ignition system for the combustion chamber. The fuel is LPG (20% propane 80% butane) What can be the best way to ignite a spark to light the flame in the combustion chamber to start the engine? We think that a lighter will not work because it has very little ignition energy. And we also think that holding a flame from a source such as matchstick or any other source cannot work, since airflow will extinguish the flame before combustion gets self sustaining in the combustion chamber. Suggestions? Is there a simple way to use spark plug?