Here is a review of the Omnibus F4 PDB Flight Controller. Its a cheapie FC with a built in PDB. I flew it with BF 4.05 on it. I used a Foxeer Mix and 2307S 2200kv motors. It is pretty stable and I took it out to a fairly long distance. It seems to do pretty good.
this is the simplest guide on making a flying airplane/a flying toy at home ,it is made from completely waste products,i made it string guided so no need for RC remote controller u can ask any...
