D21 may refer to: == Vehicles == === Aircraft === Dewoitine D.21, a French fighter Fokker D.XXI, a Dutch fighter Lockheed D-21, an American reconnaissance drone Salmson D21 Phrygane, a French utility aircraft
D21 may refer to: == Vehicles == === Aircraft === Dewoitine D.21, a French fighter Fokker D.XXI, a Dutch fighter Lockheed D-21, an American reconnaissance drone Salmson D21 Phrygane, a French utility aircraft
=== Ships === , a Nueva Esparta-class destroyer of the Venezuelan Navy , a County-class destroyer of the Royal Navy , a Q-class destroyer of the Royal Navy , a Ruler-class escort aircraft carrier of the Royal Navy , a W-class destroyer of the Royal Navy , a Fletcher-class destroyer of the Spanish Navy
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).