Jimmy, I have the Pitts version of this airplane with a DA-50. I ordered a Pitts style smoke muffler from DA when I ordered the engine. Using a Simple Smoke system and yes it does require an additional battery and switch. I have three switches and 3 batteries total. Mine weighs between 17 and 18 lbs dry. There are newer smoke systems on the market and B&B, as mentioned, does have a smoke system that requires no pump or battery. I have seen this one work and it works well.