The EFW N-20 Aiguillon (Stinger) was Switzerland’s first jet fighter aeroplane. Despite early promise, the lack of suitable good engines meant the project did not proceed beyond one prototype.

The N-20 was designed by the Swiss Federal Aircraft Factory.

It was planned to be powered by four small Swiss designed turbofan engines but when their development was abandoned a turbofan version of the Armstrong Siddeley Mamba turboprop was selected instead.

While these engines were being developed two 3/5 scale wooden test aircraft were constructed, the N-20.01 glider to test the novel wing design and the N-20.02, powered by four small jet engines, to test performance.

The full scale prototype was completed in 1952, but powered by smaller engines as the proposed engines were not yet available.

The prototype flew briefly during taxi tests on 8 April 1952 but the entire project was abandoned shortly afterwards.

This model represents the sole EFW N-20 prototype in April 1952

S&M 1:72 kit completed by Leigh Edmonds in September 2011.