Welcome to the AES Website. We are a marine design mechanical engineering company, based in New Zealand. Our reputation is built around out-of-the-box innovation, problem solving, reliability and confidentiality. We specialise in design of sailing yacht masts, spars, rigging, associated rigging load estimation, computer modelling, hydraulic cylinders and loadings on deck hardware. We typically provide engineering services to yacht designers, mast builders, boat builders and troubleshooting services to insurers and owners on all manner of jobs big and small. We maintain professional body memberships with the Royal Institution of Naval Architects and Engineering New Zealand (formerly the Institution of Professional Engineers NZ).