Introducing the Viper 250mm racer. This unit was developed with the hardcore racer in mind. Built using only the highest grade 3K Carbon Fiber on the market to not only make this unit very light but also durable. The Viper is a great unit for you guys that may already have FPV experience but maybe just looking for something different. The VIPER was made to carry the two most popular HD cameras on the market being used for FPV right now one being Gopro 2-4 as well as the Mobius Action Camera. Each and ever unit is Custom built and tuned before shipment, since we program the CC3D boards with very mild settings even guys that have never flown a racer won't have any trouble flying the Viper at all. As you gain more experience you can download the GUI and really turn up the aggressiveness on the unit. Each and ever Viper is built, tuned and test flown here in the USA by our highly trained technicians. Ever Viper that leaves our facility leaves with a Droneproz promise on craftsmanship. We build ever unit as if it were our own and you can see it as soon as you open the box for the first time. Stop searching around for any old racer and get your hands on the ULTIMATE racer. All you need to get this unit up and flying is a radio and receiver of your choosing. The VIPER can be flown with FPV equipment added such as FPV camera as well as video transmitter but is not needed especially for sport flying.