Thanks Mecam/Thanks Prophecypilot, thanks for the servo recommendations. The info on the 15-6 prop is also very valuable. Sorry to hear your loss Prophecypilot, hope you get another one soon. With the pressurized system on the YS, I always try to put the tank right over the CG. Some planes this can work, others it's not doable. Glad to hear it might work in the UCD. What size battery pack are you guys using?

Thanks agian........Mark