The D'Estienne d'Orves-class, also known as the A69 type aviso, is a French-built light corvette class ordered for coastal anti-submarine defence and later used for escort and overseas presence missions. The class used diesel propulsion, reached 23.5 knots, and originally carried Exocet missiles, a 100 mm gun, torpedoes, and a 375 mm rocket launcher.
The class entered service with a compact anti-submarine and escort fit that combined sonar, torpedoes, a gun, surface missiles, and a rocket launcher.
| System | Fit | Role |
|---|---|---|
| Main gun | 100 mm CADAM turret | Surface combat and warning fire |
| Missiles | Exocet MM38 | Anti-ship strike |
| ASW weapons | Fixed torpedo catapults and sextuple 375 mm rocket launcher | Coastal anti-submarine warfare |
| Sensors | DUBA 25 hull sonar | Subsurface detection |
D’Estienne d’Orves-class avisos are publicly documented in Operation Atalanta counter-piracy actions, including Premier-Maître L’Her's January 2009 response to pirate attacks, and in earlier French operations off Lebanon.
Timeline
A French Navy Atalanta bulletin describes Premier-Maître L'Her capturing a distress call from the cargo ship S. Venus while it was being chased by pirate skiffs.
Sources: French Navy: BM 83 - Atalante et les opérations au large de la Somalie
The French Navy said Premier-Maître L'Her completed its final sea trip after 43 years of service and was the twelfth ship in the class.
Sources: French Navy: L'aviso PM L'Her tire sa révérence après 43 années de navigation
