Greetings,
After dusting off my old .049 Cox stuff after about 20 yrs or so of being out of the hobby I started looking for glow heads. I found these forums and also found that Cox is dead so I started looking for alternatives.
The most promising alternative I found was from MECOA, the web page is at:
http://www.mecoa.com/acc/adaptors/index.htm
Below is the 911-048 with K&B 1S short plug. I put it on a well used Cox product engine from about 1976 which resides in a PT-19 trainer. This is what I'm flying these days. The cylinder is a 2 bypass port type and I rebuilt it with a Davis Diesel teflon reed and teflon tank gasket.
I was using it with a standard Cox head and 6x3 prop. Performance is what one would expect from a Cox PT-19, it flies and takes about 15 seconds for a lap with 25 foot lines.
With the MECOA head the performance was about the same. After getting the needle setting right I was able to do one spin starts with the snap starter. Fuel consumption seemed about the same as with the standard Cox head. Fuel was Norvel NVX with 25% nitro.
One problem I encountered was that the head would start to loosen after 2 runs. I used clear silicon cement on the threads and that seems to keep the head in place but allows for head removal.
I would say this is a good option for sport flying with Baby Bee type engines. I don't have a Killer, Black Widow or TD to try it on so YMMV.
Later,
Greg in PA
After dusting off my old .049 Cox stuff after about 20 yrs or so of being out of the hobby I started looking for glow heads. I found these forums and also found that Cox is dead so I started looking for alternatives.
The most promising alternative I found was from MECOA, the web page is at:
http://www.mecoa.com/acc/adaptors/index.htm
Below is the 911-048 with K&B 1S short plug. I put it on a well used Cox product engine from about 1976 which resides in a PT-19 trainer. This is what I'm flying these days. The cylinder is a 2 bypass port type and I rebuilt it with a Davis Diesel teflon reed and teflon tank gasket.
I was using it with a standard Cox head and 6x3 prop. Performance is what one would expect from a Cox PT-19, it flies and takes about 15 seconds for a lap with 25 foot lines.
With the MECOA head the performance was about the same. After getting the needle setting right I was able to do one spin starts with the snap starter. Fuel consumption seemed about the same as with the standard Cox head. Fuel was Norvel NVX with 25% nitro.
One problem I encountered was that the head would start to loosen after 2 runs. I used clear silicon cement on the threads and that seems to keep the head in place but allows for head removal.
I would say this is a good option for sport flying with Baby Bee type engines. I don't have a Killer, Black Widow or TD to try it on so YMMV.
Later,
Greg in PA