On this Day 25 October 1921
Final flight of the last North Sea class blimp.
North Sea (NS) class blimps were the largest and last in a succession of non-rigid airship designs that served with the Royal Naval Air Service during World War I. They were developed to operate off the East coast of Britain on long-range patrols. Examples of the class broke all flying records for non-rigid airships.
In total 14 NS class blimps were constructed. Following the deletion of NS.8 in October 1919, only one remained in service – NS.7. Its last flight was on 25 October 1921.