Hammer Industries releases the Str8 Up and posts an altitude challenge to all pilots. The Challenge is to pilot the craft to your highest possible altitude and land on land without breaking the plane. The difficulty is you will be taking off going straight up and landing straight down. For best results: Use group 1 and set the prop halfway up. Turn off group 1 return vtol to the middle and turn on 2. Take off to your altitude of choice. Right before desending push vtol up to engage the braking fins. Be careful with use of throttle as you have limited fuel. Throttle about 20% or so will result in a safe landing. The highest altitude fromour test pilots is 70,000 ft. Good luck and happy flying. Please post your altitude in the comments, thanks- HMI