Fixed wing aircraft Britten Norman Aircraft Manufacturers - Manufacturers of the Islander and Defender 4000 Aircraft. Site includes full specifications and history of the aircraft as well as the other services offered by BN. The original Islander design, which has an impressive world class pedigree and impeccable safety record spanning 5 decades, remains highly respected for its rugged dependability. Capitalizing on the Islanders exceptional low speed handling characteristics, the Defender 4000's extended endurance, increased payload, low noise signature and economical operating costs are proving to be ideally suited to Urban Surveillance and Counter-Terrorism operations.