THE riveting of all the bottom plates being finished, it will be found advisable to fit the external chine angle before the float is turned over. The drilling can be left until later, but it will be found more convenient to fit the chine angle while the float is in an inverted position. Some types of small floats, such as the Moth floats, have no separate external chine angles. The edge of the plating which forms the bottom is flanged over, and so forms a chine angle. If this is the case a jig shaped to the plan of the chine will be required.
Aircraft Engineering and Aerospace Technology – Emerald Publishing
Published: Nov 1, 1932