Building Instructions for 4-Max SpinRay
This design and all information contained in these building instructions are the © Copyright of 4-Max.
4-Max can not responsible for any damage or injury caused by this flying model.
www.4-Max.co.uk
Start With Elevons
Lay a piece of cling film on a flat surface.
Apply a bead of UHU Por along the trailing
edge of wing and the elevons
Run the end of a small paint brush along
the groove to get a “U” shape fillet of glue
Lay the rear part of the main wing down on the cling film and push the elevons up to the
trailing edge of the wing ensuring the equal spacing of the elevons along the wing.
Weight and pin the elevon to the wing and
allow to dry for 20 minutes
Leave a 2-3mm gap at the wing tip
Do not make the elevons flush to the end of the wings as this will interfere with the
movement of the elevons against the side fins. Pin and weight them to hold them in place.
Allow to dry for 20 minutes. Remove from board, remove cling film and spread out any
excess glue (on the side that was next to the cling film) and allow to dry for a further 20
minutes.
One Half of Motor Mounts
While the elevon to wing joint is drying apply a generous covering of glue to the bottom of
the motor mount, gently move parts in a circular motion to ensure glue covers all parts.
Then immediately separate and allow glue to cure for 12 minutes before carefully aligning
and squeezing together (contact glue style). Repeat the same for the second motor mount
making sure everything is square, as per photo below.
