H155 / EC155 Dauphin 2

🇫🇷France
Airbus Helicopters
1999 – Present
Overview
H155 / EC155 Dauphin 2
The EC155, developed from the AS365 N3 Dauphin 2, features a significantly larger cabin and advanced technology, including a five-blade rotor system and digital flight controls. Initially certified in 1998 and priced between $7 million and $8 million, it has been adapted for various roles, including a potential Light Armed Helicopter variant with armament options.
Specifications

General

Crew2
Engines2
Cabin Capacity13
Research Notes

Development background and role

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H155 / EC155 Dauphin 2 is best understood through its original airframe lineage and the government or military support roles that made it relevant beyond civil aviation.

H155 / EC155 Dauphin 2 is not a combat aircraft in the narrow sense. It is a medium twin-engine helicopter developed from the Dauphin family for civil, parapublic, and government transport roles. Its military relevance comes from how armed forces and government agencies adapt proven aviation platforms for transport, command movement, research, training, liaison, or specialist support tasks.

This distinction matters for database quality. Several of these rows carry legacy category labels that can be too broad or wrong. A business jet should not be treated as a helicopter, and a light utility helicopter should not be described like a heavy transport. The useful content is the platform's actual mission fit.

For readers, H155 / EC155 Dauphin 2 should be evaluated as an enabling aircraft. It helps move people, sensors, crews, or mission equipment in ways that support military operations even when it is not firing weapons.

Airframe characteristics and mission fit

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H155 / EC155 Dauphin 2's value comes from matching speed, range, cabin or payload capacity, avionics, and maintainability to a defined support mission.

Airbus material describes the H155/EC155 as part of the Dauphin family and highlights cabin and lift capacity for transport missions. The Dauphin family documentation also links the AS365, EC155, and H155 line as a continuing medium-helicopter support ecosystem.

The important technical question is not whether the platform looks impressive, but whether the airframe fits the mission. Range and altitude matter for command transport and airborne research. Low operating cost, visibility, and handling matter for training helicopters. Cabin volume and electrical capacity matter for special-mission conversions.

A reliable equipment page should therefore connect specifications to use cases rather than list numbers without context.

Operational relevance and limitations

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H155 / EC155 Dauphin 2 is operationally relevant as a support platform, but its value depends on operator configuration, mission equipment, and the environment in which it is used.

The H155 is not primarily a battlefield attack aircraft. Its value is in medium helicopter transport: moving personnel, supporting police or government missions, and providing range and cabin space beyond light single-engine helicopters while remaining smaller than heavy military rotorcraft.

The limitation is role specificity. A support aircraft cannot replace a tactical aircraft, and a training helicopter cannot replace a dedicated attack or heavy-lift platform. Its value is in availability, reliability, cost, and suitability for the mission assigned.

For AdSense-quality content, this section helps prevent thin pages by explaining why the platform matters, where its category label may mislead, and what analytical caution a reader should keep in mind.

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