improved? cox 0.49

their reply was... As we already emailed you a few days previous, we have no plans to manufacture engines. All the engines we have in stock were made at least 10 years ago by Cox. We merely purchased their inventory. Were we to manufacture engines, retail pricing would be at least $50 for the most basic engine as it costs about $25 to make an engine at today’s labour costs.
That aside, Cox did make beam mounted .049 engines and they can generally be found on eBay. The are called Tee Dee and run in the $80 to $100 range.
Cheers
Bernie

but were all td engines beam mount? As i have an engine that has td on the origanal prop and it is not beam mount.

I have a few pictures of the Tee Dee engines on my site. http://sites.google.com/site/coxenginecollection/
The TD on the prop stands for Thimble Drome. That was their trademark mostly used back in the 50s and 60s.
All Tee Dee engines beam mount except for the .020 and .010. There are also Medallions, they have the same crankcase as the TDs but have a one piece carb body and were made to be the "cheaper version". They did not have the same power as the TD engines. I also have a picture of a TD .049 on my site.