This is my own design, built with my very own Theory 250 frame. I had wanted to get into FPV racing for a while but when it came time to build a racer, most of the frames on the market didn't meet my requirements. These were:

• 250mm size
• 6" props
• Lightweight
• Aerodynamic
• Clean design, with few wires showing

Since I already had the tools to design and machine my own, I decided it should be my next product and I set to work. The result is a unique tubular design with a base weight of just 78 grams, a compact yet usable layout, and excellent aerodynamics and balance. Most people underestimate the importance of locating the battery above the motors to place the center of mass directly in the plane of the props. It is the single most important consideration for maximizing the agility of a given size quadcopter.

The second most important thing is ESC location, which is partly why I chose to go with a 4-in-1 installed as part of my board stack. I don't understand why these haven't caught on more, since locating the ESCs on the arms underneath the props reduces angular acceleration, blocks airflow, and just looks messy.