Weak joke, you blokes should "workshop" them before you go public.
An 8 x 6 prop on an 1.5cc diesel?
Perhaps why it is difficult to start?
Montgomery Models was the name of a very successful Victorian kit manufacturer in the late 1950's.
It disappeared without trace when the c/l boom fizzled out.
Would any of your mothers or grandmothers be in the picture below?