AC311A直升机是一款2吨级单发、6座单旋翼、带尾桨式高原轻型直升机，该机采用单/双驾驶配置及高橇式起落架，装有一台强劲的法国透博梅卡公司ARRIEL 2B1A发动机，配置国产高度集成化综合航空电子系统，加装数字化增稳系统及语音告警系统，并预留了多种选装任务设备接口，具备很强的任务拓展能力。同时，整机大量使用复合材料，并提供多种选择的精致内饰和座椅。应用广泛，可满足我国大部分地区的使用要求，尤其是高原区域，作业范围可覆盖85%的国土面积。

◆加装一台进口大功率发动机，提高整机高原性能和环境适应性；
An imported powerful engine is equipped to improve the plateau performance and environment adaptability of the whole aircraft;
◆安装的一台大功率发动机，功率贮备大，高温高原性能佳，机动性能好，具有很好的任务效能和高原环境适应性；
A powerful engine with large power storage is equipped so that the helicopter has excellent high-temperature performance for plateau, good maneuverability and creditable mission efficiency and adaptability to plateau environment.
◆采用高度集成化的先进国产化综合航电系统，降低飞行负担；
Advanced, highly integrated domestic avionics system is adopted to reduce pilots' burden.
◆采用结构预留设计，可加装电动绞车、医疗救护单元（ICU）、扬声器、搜索灯、图像传输系统、应急漂浮系统、氧气系统、农林喷洒系统等多种任务设备，具有良好的任务和功能扩展性；
Structure reservation design is adopted so multiple mission equipment such as electric hoist, ICU, loudspeaker, search light, image transmission system, emergency float system, oxygen system, agriculture and forestry sprinkling system etc. can be optionally installed, which makes the aircraft have good mission & function extensibility.
◆国产化程度高，降低对国外技术依赖性，提高加改装自主性和开放性；
The localization degree of parts and components is high, which reduces the dependence on foreign technology and improves the independence and openness of helicopter modification.
◆整体技术成熟、先进，可靠性高，维护和保障简单，故障率低；
The technology is rather mature, advanced, so the reliability of the aircraft is high and the maintenance is easy and the rate of failures is low.

技术特点
Technical features
◆ 构型：单旋翼带尾桨式常规布局轻型直升机；

Configuration: light helicopter with conventional layout of single-main-rotor plus tail rotor;
◆ 发动机：一台透博梅卡ARRIEL 2B1A高性能发动机；

Engine: a Turbomeca engine ARRIEL 2B1A with excellent performance

1. 发动机采用双通道电调（EECU）加电动应急备份控制系统; The Engine adopts dual channel EEC (EECU) plus electric emergency back-up control system;

2. 旋翼：3片复合材料主桨叶，长寿命星型柔性桨榖；

Rotor: three main rotor blades of composite, long-life star-flex rotor hub;
◆ 尾桨：2片复合材料尾桨叶，采用跷跷板结构形式；

Tail rotor: two composite tail rotor blades of see-saw type;
◆ 起落架：采用加拿大DART公司带阻尼器的滑橇和板弹簧尾撑型式的高姿起落装置；

Undercarriage: high landing gear, the skid with damper and spring plate style of tail support, supplied by Canadian DART;

1. 电气系统：装有1台6kw的起动发电机和1块24V/15Ah的蓄电池应急电源; Electric system: a 6 kw starter generator and one 24 V/15Ah emergency supply for accumulator are additionally installed;

2. 航电系统： 2台多功能显示控制单元和1台发动机参数显示单元，综合集成显示飞行任务过程中所需的航向、姿态、速度、高度、数字地图、发动机参数等基本飞行信息，并提供通信、导航、告警等各项功能；

Avionics System: 2 Multifunction Display control units and 1 engine parameter display unit which will integrate and display the basic flight information during the flight mission, such as the flight direction, attitude, speed, altitude, digital map, engine parameter etc. and provide communication, navigation, warning and other functions;

1. 导航系统采用捷联惯导,可实现在无GPS信号条件下的全自主导航。The navigation system adopts the strapdown inertial navigation, which can realize the totally self-contained navigation without the GPS signal.

2. 采用双驾驶操纵系统、双仪表配置；It adopts the dual-pilot control system and the dual instrument arrangement;

3. 左侧舱门采用滑轨式设计；

4. Left door adopts sliding rail-type design;

产品优势：
Product Advantages:
◆ 直升机基础平台成熟、先进、可靠，保证了整机良好的出勤率和完好率；

Basic platform of helicopter is mature, advanced and reliable, which ensures goods availability rate and readiness rate.
◆ 任务改装灵活多样，可根据不同需要改装成警用型/通航作业型/教练型/医疗救援型/VIP型及运输型等，并可且于军用,加装多种武器及侦察设备。

Flexible to modify for different missions. The aircraft can be modified for combat, reconnaissance, transportation etc. and various weapons on cabin door can be optionally installed.
◆ 安装一台大功率发动机，功率贮备大，高温高原性能好，机动性能好，具有很好的整机任务效能和高原环境适应性；

A powerful engine with large power storage is equipped so that the helicopter has excellent high-temperature performance for plateau, good maneuverability and creditable operational efficiency and adaptability to plateau environment.
◆ 采用高度集成化的先进综合航电系统，降低飞行负担；

Advanced, highly integrated avionics system is adopted to reduce pilots' burden.
◆ 增加预留接口，可选装或增加多种任务设备，提高不同任务环境适应性；

Interfaces are additionally reserved, and much mission equipment can be optionally installed to improve its adaptability to environment of different missions.
◆ 采用开阔大玻璃设计的机头，视野开阔；

Nose of large-open-glass design can provide wide vision;

1. 先进的复合材料机身和全复合材料旋翼系统，重量轻，使用寿命长； Advanced composite fuselage and all-composite rotor system, light in weight and long in service life.

2. 优秀的飞行性能和飞行品质，优良的可控制性和机动性；

Excellent helicopter performance, perfect flight quality, good controllability and maneuverability;
◆ 具有很高的开放性，可根据用户的要求进行加改装；

As it has high degree of openness, modification can be done according to customers' requirements.
◆ 整体技术成熟、先进，可靠性高，维护和保障简单，故障率低；

The technology is rather mature, advanced, so the reliability of the aircraft is high and the maintenance is easy and the rate of failures is low.
◆ 具有完善的用户管理服务体系，可提供快速响应、飞行和机务培训、工程技术支持等服务，支持快速的维修、备件支援等。

Indigenous advantage and complete service system for customer management are available. The services such as quick-response, flight and maintenance training as well as engineering and technical support may be provided and quick repair, spare support, general aviation commissioning may also be supported.