Britten-Norman Islander variant
Britten-Norman Islander BN-2A Islander
The first fully developed production Islander, flown in 1969 with lower-drag cowlings and an enlarged rear baggage bay. It became the base for the long matrix of numbered sub-variants that defined the twin.
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History
When the prototype became a product
The Islander reached the market as very nearly the same aeroplane that had flown at Bembridge, and that was its early weakness: a design solved with intelligence but without the finish a commercial operator expects. The revision Britten-Norman introduced in 1969 left the high-wing twin's silhouette untouched but reworked almost everything an operator handles. Lower-drag engine cowlings, cleaner undercarriage, a redesigned interior and an enlarged rear baggage compartment with external access turned the BN-2A into the model third-level carriers began buying by the hundred.
A catalogue, not a model
From that point the designation stopped naming an aircraft and started naming a matrix. The numeric suffixes did not describe different machines but combinations of options on the same airframe: modified flaps and fuel-injected engines in some cases, greater span and wingtip tanks in others, leading-edge modifications, droop flaps, successively raised take-off weights and lengthened noses for extra baggage volume. An operator could order almost exactly the aeroplane he needed without leaving the type certificate, and the factory could build it without retooling.
The inheritance
That flexibility explains why the Islander outlived the commercial disappearance of nearly all its contemporaries. The military versions, the turboprop and the three-engined derivative all rested on improvements introduced with the BN-2A, and the later series did not replace that base so much as relabel it. When the BN-2B appeared in 1978 what changed was comfort and the flight deck; the aircraft underneath was still the one of 1969.