I have decided to stick with the closed loop adaptors for the inter plane strut attachment points; after all I used them to connect the cabane struts and Warren girders on the Elf and they’ve stood the test of time. Some of the steel 14Ba bolts have sheared off and been replaced but the closed loop adaptors are still fine.
The aileron control horns are made from 0.5mm galvanised steel with 2 pegs soldered in place to make them more secure in the aileron leading edge.
The aileron LE has balsa blocks to support the hinges and one is routed out to also accept the horn, the plate soldered to the hinge pins will add further strength.
As there are 4 control horns, all of which will be interconnected, it is important that they are all as near as possible identical; therefore once they had been “roughed out” I joined them together with a pin through the main actuating hole for the final filing to shape and a jig ensured that they were epoxied in the same relative positions on the ailerons.