For high current applications in conjunction with Scorpion, CopperDoc or PowerDekker helicopter motors of the 45XX and 50XX family in 3-D aerobatic aircraft, large scale aircraft (120" - 150"+) such as warbirds, tugs or SCALE replicas, the YGE Opto 255 is now available. 255A continuous current around 400A short time are no problem at all for this controller. It has an integrated anti-flash and full telemetry support, like all current YGE controllers. The ideal partner for Single-Gear-XL and XL-Competition!!!