Can i use 2 or more pieces of 25mm box section same as used for the chassis for my engine mounts? ive got a lot of this left over so i could double or treble it up even? i also have 25 od tube and 19od tube, could this be better? thanks al

anyone got any ideas on this?
thanks al

Unless you are going for a triangulated design, you need decent sized thick wall tubing. 16 gauge 25mm RHS won't last long at all.

The kind of engine mount design commonly used on the Locost is under quite a lot of stress.