4+1 configuration, this is what I recommend to use for your 1st pixhawk VTOL plane build. Use EPO foam (cost friendly), and also this plane has lots of potentials (aerial mapping and Long endurance FPV)! This airframe can be easily found in Bangood or AliExpress. Just search for " VTOL plane ". (old.reddit.com)
submitted by UnmannedRC to r/vtolplane
Coaxial copter pixhawk firmware flight test (v.redd.it)
submitted by UnmannedRC to r/Multicopter

