I visited Jimmy Yawn with the idea of using glow plugs to ignite a solid propellant for use in igniters.
I tested a standard glow plug from an RC engine and one from an automobile. The automotive plug was a from a 2000 Ford F350.
The RC glow plug ignited almost instantly once it was powered but it had problems with reliability. The coil for the plug is protected by the plug. In order to get it to work you would apply some propellant to the tip of the plug. Too much would fail and sometimes too little would fail. The coil would also get covered in residue or ash and would need to be cleaned. I messed up two of the plugs by pressing the propellant against the glow plug too hard and it would compress the little coil inside the plug.
