Red/Black Medallion/TD's?

Bob, I purchased a TD .049 from Tower Hobbies in the late 80's and it came with a red carb body. Typically the .049 came with black and the .051 with red. I have a letter from Cox in regards to carb bodies I purchased in the early 90's which said they were completely liquidated of the black carb bodies and that they only had red ones from the .051. I would assume that at this point that all of the TD's were being assembled with what they had. I have broken so many of them I lost count. I used to just throw them out by the dozens. One hit to the ground with a old one and it shatters the metal venturi out of the side of it. I have since stopped throwing them away and I sleeve the outside with a piece of brass tubing which fits very tightly. I clean the threads and fill the cracks with epoxy. Once dried I chase the threads with a 1/4-32 tap and it's better than new.

It wasn't that Cox decided to change color, it was due to the fact that they were out of the black bodies. The letter just stated that they didn't know when they would be back in stock.

The Medallions had a significant decrease in performance. The cylinders typically were single bypass although some came with dual due to muffler useage, The crank timing was less aggressive not to mention the cut on the crank was smaller. Choke area on a Medallion is smaller than that of a TD therefore you have increased fuel draw, better economy, less power. However, the Medallion did better with 6" props vs the TD. The Medallion also had a standard glow plug vs the TD with the trumpet high comp head.