Pilot side wing rear spar
Prepping and installing pilot side rear spar

PVC conduit for electrical cables (lights etc)

Prepping ribs to fit the rear spar in place

rear spar in place

Prepping rear spar for reinforcing biax fibre layups

Not easy getting these layups sitting nice and straight in the channel

Getting the last few air pockets out (I hope)
This post is from Darren and Lee's Whisper X350 Gen II