Dr. Mad Thrust 50mm Alloy EDF Thrust Tube

Just a simple thrust tube for a [Dr. Mad Thrust 50mm EDF](https://hobbyking.com/en_us/dr-mad-thrust-50mm-10-blade-alloy-edf-3300kv.html?___store=en_us/). It has an 8% Diameter Reduction at the exit which should give you a good mix of speed and and torque. The tube is 50mm long and there is an extra 20mm that couples it to the EDF, while the optimal length is about 4x the diameter of the EDF which would be 200mm that simply wouldn't fit on my [HK FlyCat](https://hobbyking.com/en_us/flycat-edf-foa