The class was designed for multi-mission capability. They had the ability to complete a fast loading and unloading of
landing craft, and other equipment, carrying troops and vehicles for a land mission. The vessels could carry, supply and operate
helicopters transporting
commandos or providing close support. They could transport the mission crew and command a landing operation of limited scale. The
Ouragan class had a standard
displacement of and at full load. They were
long overall and
between perpendiculars with a
beam of and a
draught of . When completely docked down they had a displacement of and a draught of . The vessels had a max complement of 213 personnel including 10 officers.
Ouragan was powered by two
SEMT-Pielstick 12 PC 2V
diesel engines turning two shafts and
controllable pitch propellers.
Ouragans powerplant created and
Orages, . This gave the ships a maximum speed of and a range of at . The ships both created 2,650 kW of electrical power.
Amphibious warfare The ship had a
well deck that could be submerged under water. The movement of water within the ship was control by sluices, valves and automatic pumps. The vessels were capable of filling the deck at controlled from a central position. The well deck was accessed by a stern gate. Since the vessels were designed for multi-mission capability, the
Ouragan class had several layouts. The standard layout allowed the vessels to transport 349 troops with 14 officers. For short distances the number could rise to 470 troops. The ships were supplied with two ''
Engin de débarquement d'infanterie et de chars (EDICs) which could transport eleven light tanks or eight loaded Chaland de transport de matériel'' (CTMs) or with eighteen Mk 6
landing craft mechanized (LCMs) operating from the well deck. A further three
landing craft vehicle personnel (LCVPs) could be carried topside. Mission flexibility was accomplished through the non-permanent sections of both the internal and external decks that could be removed. A temporary dock could be created from fifteen temporary sections that allowed for an increase in storage space for equipment, however the docking well was reduced to half its normal size. Logistically they could carry of equipment which was serviced by the two 35-ton cranes mounted above the docking well.
Orages interior layout was altered, equipped with an enclosed flag bridge but with the removable decks and surgical compartments removed Furthermore, there was a large provision of
decontamination areas. They were also designed as repair ships, able to dock ships up to within their well and had repair and maintenance facilities along with electrical and ordnance workshops.
Armament and electronic warfare Ouragan was originally armed with two single-mounted
mortars and four single-mounted
guns. The 120 mm mortars had a range of and fired a shell. The 40 mm guns had a range of .
Orage was unarmed. However, in 1993, the two ships were upgraded with two Matra Simbad twin missile launchers armed with the
Mistral infrared
surface-to-air missile. The anti sea-skimmer missile has a homing range to and carried a warhead.
Orage was also given two single-mounted Breda/Mauser /70 guns.
Ouragan was initially deployed with the SQS-17
sonar system. In 1993, as part of their modernisation, both ships were equipped with
Thomson-CSF DRBV 51A air/surface
radar operating on the
G band and for weapons control they were given two
SAGEM VIGY-105
optronic systems.
Ouragans sonar was removed in the refit.
Aircraft Ships of the
Ouragan class had a
flight deck that initially had the ability to operate three
Aérospatiale SA 321 Super Frelon helicopters or ten
Aérospatiale Alouette IIIs. To accommodate the flight deck, a small
island was situated to the starboard side. They could have one further Super Frelon or three Alouettes fly from a removable six-section flight deck area covering their well deck space. Within its hold, it could carry 18 Super Frelons and 80 Alouettes for transport purposes only. == Ships in class==