| Of the ones shown Doug McHards` is at least British, slightly dated but very good by a master modeller. The American ones should be a bit more up-to-date but hard going with references to items not always available this side of the pond plus peculiar terms and spelling. Worth a browse before making a choice. The "hinge" things are trim-tabs same as full size practise to induce or correct a turn. Hinges proper are on the control surfaces for R/C and can be as simple as a thin flexible plastic material or sewn thread. |