本SAE航空航天标准（AS）规定了固定翼（14 CFR第23、25部分）飞机机载双目平视显示器（HUD）的最低性能标准；虽然本文件也适用于旋翼机（14 CFR第27、29部分），但旋翼机可能需要额外的性能标准。本航空航天标准涵盖基本的显示标准，但不包括具体的应用要求。具体应用包括飞行仪表、导航、发动机和系统状态、警报、监视、通信、地形感知、天气、增强视觉、合成视觉和其他显示。 本文件涵盖了飞行员或副驾驶拟在飞行甲板上使用的适形和非适形HUD系统的标准。为了产品鉴定，标准和其他环境条件规定了显示最低性能特征。本文件不涉及传感器成像系统、飞行员佩戴的显示器（护目镜、头盔显示器）或待显示的特定符号。本文件旨在与当前特定系统、技术标准指令（TSO）、咨询通告（ACs）和其他联邦航空管理局（FAA）中包含的其他指导材料结合使用- 批准的指导材料。本SAE航空航天标准适用于多种飞机类型的HUD。

This SAE Aerospace Standard (AS) specifies minimum performance standards for airborne binocular Head-Up Displays (HUDs) in fixed wing (14 CFR part 23, 25) aircraft; while this document is also applicable to rotorcraft (14 CFR part 27, 29) additional performance standards may be required for rotorcraft. This aerospace standard covers basic display standards, but does not include specific application requirements. Specific applications can include flight instrumentation, navigation, engine and system status, alerting, surveillance, communication, terrain awareness, weather, enhanced vision, synthetic vision and other displays.This document covers criteria for conformal and non-conformal HUD systems that are intended for use in the flight deck by the pilot or copilot. Display minimum performance characteristics are specified for standard and other environmental conditions for the purpose of product qualification.This document does not address sensor imaging systems, displays worn by the pilot (goggles, helmet mounted displays) or specific symbology to be displayed.This document is intended to be used in combination with other guidance material contained in current system specific, Technical Standard Orders (TSOs), Advisory Circulars (ACs), and other Federal Aviation Administration (FAA)-approved guidance material. This SAE Aerospace Standard can be applicable to HUDs used across multiple aircraft types.