Here is my Rocket Quad, a FPV quad I designed to attempt to set the World Record for the fastest FPV Quadcopter. I have changed my project to work on another record so I thought I would release my design so someone else can unlock the speed that is hidden within.
The quad is designed to work with standard, off the shelf, 5 inch FPV drone parts running Betaflight firmware. To build the quad you will need
1 x Betaflight Flight Controller 30mmx30mm or 20mmx20mm 6s capable with an adapter I used Hobbywing F4
1 x 4 in 1 ESC 30mmx30mm 6s capable and at least 50 amps I used Hobbywing 60 a
4 x 2207 2500kv motors
1x Foxeer Razer Nano FPV Cam
1x RunCam Nano 3 or Tiny Whoop Pinch FPV Cam
1x ViFly Cam Switcher
1x Foxeer Reaper Nano VTX and FPV Analogue Goggles I use FatShark HDO2 with Rapidfire Module
1x FPV VTX Antenna (Lumineer AXII or Foxeer Lollipop Micro)
1x ELRS Receiver with ELRS Radio Transmitter - I use FrSky X-Lite Pro with HappyModel ELRS Module
1x GPS Sensor I use Foxeer MQ10 250 or MQ10 180
4x Propellers - for testing normal 5 inch props are fine but for speed runs you will need high pitch APC props like the 5.2x6.0 at a minimum
You will also need lipo batteries, I recommend using a 4s 1800mah for testing and a 6s 1500mah for speed runs.
The Flight Controller stack is mounted upside down at the rear of the quad, this is to help with cooling and try to save the electronics in a crash so you will need to rotate the orientation in Betaflight as well adjust the motor rotation since the props will be in a pusher configuration.
There are 2 options for Main Body and Tail Cone attachment, one uses 3x3mm round magnets, the ones I ordered where more like 3.3mm x 3.3mm. Or you can use M2 6mm screws with M2 threaded inserts.
Assembly is pretty straight forward, but you'll need to use extra long wires for the FPV Cam switcher to the FC. The switcher is there for easy takeoff and landing as well as keeping the nose cone aerodynamic. The nose cone is designed to fit the listed FPV cams perfectly, you might be able to use others but I don't know how they will fit.
If you have any questions I will do my best to answer.
Happy Flying and Godspeed