it can be converted to use the external Kero start plug (in case you burn out the internal and wanna get a few more flights before sending her in) but I'm not sure if you can also gas start it the same way, not sure where the gas is injected at relevant to the glow plug hole that's blanked out on the turbine, via the 3mm input it goes directly to the internal Kero igniter and likely won't work but I've never tried it............wanna be the first to give it a try Bob???