17. Install the duct on the left side of the fuselage as shown.
Take one 170mm conduit and one duct base.
Paste the duct base inside the left side of the fuselage, 30mm away from the duct hole.
18. Glue the conduit to the conduit base on the left side of the fuselage, both of the ends of the
conduit pass through the conduit hole.