The Terzi T-9 Stiletto is an Italian two-seat light aircraft designed by Milanese aeronautical engineer Pietro Terzi who built a demonstrative prototype at his firm Terzi Aerodyne based in Milan, Italy.
The Stiletto is a two-seat low-wing monoplane designed under FAR 23 regulations, that meets the FAA (LSA) Light Sport Aircraft rules. It is mainly metal construction but has a glassfibre cabin enclosure. It has a fixed nosewheel landing gear and is powered by a nose-mounted Rotax 912A piston engine. The cantilever wings and the demountable tailboom of aluminium alloy structure carrying the empennages can be detached for transport and storage.