Are you an inside guy or an outside guy............

Maybe it is the rudimentary way I as a loner fly my planes in the middle of nowhere, that drove me to abandon the COX clips..Having no table on which I would stand the plane for engine starting, and no helper whatsoever, I often find
engine starting cumbersome with a clip that slips off the head easily and fails in this or that way.

First off, I find the insulation sleeve on the stock COX glow clips rather brittle. Especially after an elongated use and exposure to fuel residues it tends to snap. Then it is only a matter if time when the copper wire is next to fail.




Plus, the opening of the top fork does not match all the central poles on various COX glow heads, some are too thick. So the forcibly attached clip will slip off too easy.

Otherwise I find their use a very authentic tribute to the past and heyday of COX times and I tried to use them as frequently as possible, but they let me down in the field so often that I was coerced into using a more robust clip and more durable cabling, that, on top, also works with head adaptors and conversions, and will not slip off the glow head while I vigorously flip the prop, which is again often the case with COX clips.




(But I still like the elegant and precise appearance of COX clips that match the overall fashion of the sleek COX engine design.)

For 010-s where the stock COX clip is too big, I use 2 smaller alligator  clips of which I attach one to the tip of glow head, and the other to a naked wire I loop around one of the tank screws, and pull out through one of the filling nipples then pull back through the other nipple into the tank and anchor on another tank screw and washer. The circuit reliably closes through the screw-crankcase-cylinder-glow head body- glow filament path. I always use external tanks on my engines so the wire led through the nipple does not interfere with tank filling.



Sorry for this time being overly scrupulous with a COX product...maybe the only one ever..