New Trebuchet in the works

This is Dad's new trebuchet model. We are still working out the kinks with the sling.
This was a joint project by J and Dad. J built the fuselage and tail. Dad did cockpit and yellow/gray wings. J did wing extensions, tips, and nacelles.
J at an indoor play area 'hanging out'. We would love to install these swings in our house!
A lego star wars pod-racer. A quickie project. I think this is Sebulba's.