The jig is mainly made from ¼ square balsa using plenty of braces to ensure stiffness; it’s got to hold the centre section rigidly in place whilst the cabane struts and bracing wires are fitted.
The jig in position on the fuselage. It will be held more securely for the final fitting.
The initial fitting of the cabane struts is the check that they will actually line up with the fixing points.
