Hal finally put the Tweaker 180 in the air at the park around the corner from our house.
This is the largest multi-rotor aircraft we’ve ever built from scratch and Hal did all of the assembly and programming himself. This is no minor feat considering that we’re using an F3 flight controller with an Adafruit GPS that we raided from my Arduino component stash, and there is precious little documentation available online which discusses how to make this all work.
Without even going to full throttle, we clocked 58MPH in two speed runs here.
Build Specs are:
Tweaker 180 carbon fiber frame.
Scorpion Precision brushless motors w/30A speed controllers.
Seriously Pro (SP3) F3 flight controller.
MXK NAZE32 power distribution board w/OSD
Foxeer 200MW video transmitter.
Lemon DSMX satellite receiver.
Duraspec Antenna.
Adafruit Ultimate GPS Breakout V3.
3S Lipo 2250mAh battery.
Spektrum DX7 (DSMX) radio with Fat Shark Dominator V3 FPV goggles.
I think the video drops are due to the voltage falling below 12 and the
video transmitter is cutting off briefly. I guess it needs 4s power.
So – as it turns out. The PDB/OSD board I used to build this craft only
supplies about 11.5 volts with a 12.6v fully charged li-po connected, and
it only gets worse from there. The 12v rail was running very low on this
craft and I did not know until I did some testing today. The PDB requires
4S to fully run the 12v and 5v regulators, at least on the board that I
have.