KDB Darulehsan alongside 3 of her sisters in Muara Naval Base on 26 March 2020.
History
Brunei
Name	KDB "Darulehsan"
Builder	Lürssen Werft
Commissioned	7 May 2011
Homeport	Muara, Brunei
Identification	OPV-07
Status	Active
General characteristics
Class and type	Template:Sclass-
Displacement	1,625 tons
Length	80 m (262 ft 6 in)
Beam	13 m (42 ft 8 in)
Propulsion	2 × MTU 12V diesel engines, 11,400 hp (8,500 kW)
Speed	22 knots (41 km/h; 25 mph) maximum
Range	7,500 nmi (13,900 km; 8,600 mi)
Endurance	21 days
Complement	55+
Sensors and processing systems	Search radar: Terma Scanter 4100 Fire control radars: Thales Sting EO MK2 Navigation radar: 2 × Furuno navigation radar
Electronic warfare & decoys	ESM: EDO ITT 3601 Decoy: Terma DL-6T Decoy Launching system
Armament	Guns : 1 × Bofors 57 mm Mk3 2 × Oerlikon 20mm/85 KAA Missiles : 4 × Exocet MM40 Block 3
Aircraft carried	1 × helicopter
Aviation facilities	Helicopter landing platform

KDB Darulehsan (OPV-07) is the second ship of the Darussalam-class offshore patrol vessels. The vessel is in active service in the Royal Brunei Navy (RBN).

Brunei ordered the Darussalam class from Lürssen, the same company that Brunei contracted to sell the Nakhoda Ragam-class corvettes, and the first two vessels were delivered in January 2011. The second batch of two ships were delivered by 2014.

KDB Darulehsan was built by Lürssen Werft company in Germany around the late 2000s. She is part of the first batch delivered from Germany to Brunei. Darulehsan and KDB Darussalam commissioned together on 4 May 2011 at Muara Naval Base. All four of her sister ships work in the offshore patrol vessel role.