Going a little Dick McCoy happy.....

I can find quite a lot about the man on the net but very little about his engines.  I wish I had kept all of my vintage MAN copies.  

I picked up two red Heads and a pre-red Head last week and have six more coming.  Most interesting is this pre-red head .29.  It has a restricted venturi and a tapped (6/32) boss on the back not removable plate.  What is this for - mounting a fuel tank, some sort of radial mount?  



The two red heads are different in the head design, one has an off-set hole for the glow plug, the other is centralized.  Does anyone know the reason for the difference (different porting?)  and which predates which?  



All will be disassembled and restored except maybe the .29 including the six coming which are really rag-tag. More business for Chellie.



Also came the same day is this Cox .049 Space Bug? same as the one that I bought about 67 years ago.  I wanted one to mount in a vintage plane and fly and I didn’t want to risk my original one.  It was nasty, hence the rather cheap price that I got it for, but it cleaned up well with all new gaskets.  Ought to be fun to build a model for it and go round and dizzy round. Note the glow plug, someone chopped off the sides. Does Cox Int. still supply the early plugs?