This quad is my pride and joy, it's based on a build I saw on here years ago. It packs some serious punch clocking out at 140 km/h with flight times of 4-5 minutes. It handles more or less like a 5" and is tons of fun to fly.

This little beast has cost me a lot of headaches ever since I started building it two years ago. On the first maiden it blew a cap on the VTX which leaked onto the FC which made it fly into the ground at max throttle while I couldn't disarm as the short fried the RX. This year I finally perfected the build.

After replacing the HGLRC stack with a cheaper MAMBA stack it behaved correctly. But the 3700kv, 4S combo was too strong for the propellers, at mid throttle they would start bending causing oscillations. After trying a bunch of different props and tuning I settled on the original Gemfan 3052 props. On the new stock betaflight it handles like a dream without any bounceback or propwash, the only problem being gentle landings as it bounces around with all that power on such a lightweight. The mini pagoda turns out to work great and is very durable.

Stats:

• Recorded top-speed: ~140km/h / 86 miles/h
• Flight time: 4-5 minutes on 4S 650/850mAh
• 150 grams dry / 220 grams with battery