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GB/T 42856-2023Flight test requirements for civil large and medium unmanned helicopter systems flight performance (English PDF)

民用大中型无人直升机系统飞行性能飞行试验要求

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

August 6, 2023

Implementation date

March 1, 2024

Scope

GB/T 42856-2023 is the English-translated version of 民用大中型无人直升机系统飞行性能飞行试验要求.

This document specifies the flight testing of the flight performance of large and medium civil unmanned helicopter systems: what the test covers, its purpose, the conditions it requires, how it is carried out, how the data are processed and how the result is evaluated.

The document applies to the performance flight testing of civil unmanned helicopter systems with a maximum take-off mass of not less than 150 kg powered by fuel or by batteries; the flight testing of unmanned helicopters of other types may follow it as a reference.

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Document preview — GB/T 42856-2023

National Standard of the People's Republic of China

ICS
49.060
Classification
V 37

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Contents

  • PrefaceI
  • 1 Scope
  • 2 Normative reference documents
  • 3 Terms and Definitions
  • 4 General requirements
  • 4.1 Test flight conditions
  • 4.2 Test flight object
  • 4.3 Test flight testing and test modification
  • 4.4 Test flight data processing
  • 5 Detailed requirements
  • 5.1 Static pressure and airspeed measurement system calibration
  • 5.2 Engine installed power loss
  • 5.3 Take off
  • 5.4 Inclined climb
  • 5.5 Rotation
  • 5.6 Hovering and Vertical Climb
  • 5.7 Landing
  • 5.8 Level flight
  • 5.9 Limit height-speed envelope
  • 5.10 Do not exceed speed
  • 5.11 Battery life
  • 6 Test flight report

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents" Drafting.

1 Scope

This document specifies the content, purpose, conditions, implementation, data processing and Result evaluation and other requirements.

This document is applicable to civil unmanned helicopter systems with a maximum take-off weight of not less than 150kg and using fuel or batteries as power source.

Performance test flight, other types of unmanned helicopter test flights can be used as a reference.

2 Normative reference documents

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to this document.

GB/T 38152 Unmanned aircraft system terminology

3 Terms and definitions

The terms and definitions defined in GB/T 38152 apply to this document.

4 General requirements

4.1 Test flight conditions

The test flight site conditions (altitude, size and surface material of the runway or landing area, etc.) and atmospheric conditions (atmospheric temperature, atmospheric pressure, etc.)

Atmospheric humidity and icing, etc.) should comply with the relevant provisions in the model technical requirements.

4.2 Test flight objects

4.2.1 General

The technical status of the test flight object (the unmanned helicopter system being tested) should comply with the model technical requirements. Unless there are special provisions, the test flight objects are still Shall comply with the requirements of 4.2.2 and 4.2.3.

4.2.2 Power plant
4.2.2.1 Engine power guarantee

The performance of the installed engine should not be lower than the minimum guaranteed performance of the engine. During the test flight, the engine maintenance requirements should be followed. Perform a guaranteed power check.

4.2.2.2 Power failure

If shutting down the power unit, setting idle or using partial power is used to simulate power failure, it should be proven that the simulation method is consistent with the real power.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

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