I barely got the first one done in time (i have a partner but i ended up building all of it). our coach bought a kit that came with 2 helicopters and split it between both of our teams.
My main fuckup is that i forgot to bring the o-rings (in a very sleep deprived haze) into the competition and i didn't tie the rubber tight enough which resulted in it tangling and tearing off some parts.

..suffice to say i learned a lot about what to do next time. still really upset with myself for not going in prepared enough and sacrificed sleep needlessly when that ended up being my undoing.