RE: Extreme Flight 87" Yak 54 - Build & Fly
I use the sullivan Skywriter smoke pump! Standard DA smoke Exhaust! Smokes great. Mounted the pump and the battery (Duralite 960?) on the engine box and moved the Duralite 4800 behind the wing tube(thats where it ended up) No signigficant difference in performance. The sullivan smoke pump mixes great with my 9C. Started by copying someones posted settings and made adjustments from there!
Its awsome!
GOOD Luck!