This build took me longer because I got distracted with the 3D printed I just bought, so it took me about 2 months before I finished it. I came across this brand-new frame on RCG and picked it up for a good deal ($20 shipped). It did not matter to me that it was version .1 and not the .2 because all I cared about is the optional 7” arms that was included. The 5” version of this frame only cost $26.99 and to upgrade to the 7” all you need to buy is the longer arms, which cost $24.95.

The first thing I did after receiving the frame was to replace the original 30mm standoff to 20mm. By doing this I hope to lower the CG because the battery is top mounted. The problem with slamming the frame is that I only have enough room for one board on the 30x30 mount. Typically, there is lots of space to work with but the 6mm thick arms and supporting plate is stuffed inside the 20mm space, so now there is not much room left. That is why I went with a Mateksys F405-CTR that has built in PDB that supports individual ESC.

Initially I was planning to use a set of Hypetrain Ummagawd v1.1 2306 2150KV motors but I came across a set of Iflight Xing 2208 2150kv motor on RCG that might be a better fit for a long-range quad. That is why I had to reprint all the TPU Parts from Blue to Green, so it can match the motors.

Another thing I got hung up on was how I should mount the ESC. Typically, you would mount it on the top of the arm because it is the most direct path, however I learned the hard way that props 6” and up are more prone to prop strike. I never had this issue with my 5” quads but I starting to see it more on the 6.” So, for this build I wanted to run the ESC on the bottom of the arms. But I do not like how power wire is so exposed on the bottom of the quad.

My maiden flight was a disaster. I flew 3 packs and crashed all 3 times. The first was nothing serious, I power loop in to a volleyball net. The second was a quad killer crash in to the concrete floor. I totally forgot to tighten the motors screws when I was building it. I only hand tighten them, so I could solder them to the ESC. Right after I did a punch out one of the motors fell off and the quad tumbled out of control towards the homes. I was fortunate enough that it missed the solar panels that were on the roof of the homes.

I think I am sold on these setup, not only does it fly well but it is taking all my crashes like a champ. I thought the first crash with the motors falling off and crashing in to someones house, it would have broke one of the motors. You can see on one of the motor bell that it hit something hard, but it still spins true and runs well. Even though it is bigger and heavier than my 5" and 6" quads, this guy feels a better than some of my smaller freestyle quads.
Here are 2 videos showing you DVR and HD footage so you can get an idea how the XING 2208 2150kv motors handle the 7" props:
Gopro 7 Black

Fatshark DVR