Purpose

This study aims to estimate the greenest helicopters and the emission amount based on the helicopter movement within the London Heathrow and London city control zone.

Design/methodology/approach

The helicopter flight data recorded by the UK’s specialist aviation regulator Civil Aviation Authority and the helicopter type with engine emission data from the Federal Office of Civil Aviation (FOCA) were used for calculation. Based on the approach adopted, the greenest and the most environmentally friendly helicopters were identified for a light-duty helicopter with single-engine, a light-duty helicopter with twin-engine and a heavy-duty helicopter with twin-engine.

Findings

Comparing a flight consisting of landing and take-off cycle, and 1-h phase based on helicopters emissions in the FOCA database, B06 with DDA250-C20R single-engine in the light utility, A109 with PT6B-37 twin-engine in the light utility, and the A139 helicopter with the PT6C-67C twin-engine in the high utility has been identified as the most environmentally friendly helicopter.

Practical implications

This study provides the opportunity to compare between the best and the worst helicopter with engine type according to the emission values released to the environment.

Originality/value

This study raises awareness of the emission levels caused by helicopter in urban air transport in developed countries in terms of environmental and human health. It also provides justification for the authorities to encourage the development and use of green engines and technologies.

中文翻译：

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伦敦直升机排放量和最环保直升机的估算

目的

本研究旨在根据伦敦希思罗机场和伦敦城市控制区内的直升机运动估算最环保的直升机和排放量。

设计/方法/方法

英国专业航空监管机构民航局记录的直升机飞行数据和带有来自民航联邦办公室 (FOCA) 的发动机排放数据的直升机类型用于计算。根据采用的方法，确定了最环保和最环保的直升机，分别为单发轻型直升机、双发轻型直升机和双发重型直升机。

发现

比较由着陆和起飞周期和基于 FOCA 数据库中的直升机排放的 1 小时阶段组成的飞行，B06 与 DDA250-C20R 单引擎在轻型实用程序中，A109 与 PT6B-37 双引擎在轻型实用程序中实用性高，搭载PT6C-67C双发的A139直升机被认定为最环保的直升机。

实际影响

这项研究提供了根据释放到环境中的排放值比较具有发动机类型的最佳和最差直升机的机会。

原创性/价值

这项研究提高了对直升机在发达国家城市航空运输中造成的排放水平的环境和人类健康的认识。它还为当局鼓励开发和使用绿色发动机和技术提供了理由。