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✈️ 真空速估算器（示意）True Airspeed Estimator (Demo)
TAS ≈ IAS × √(ρ₀/ρ) 密度比示意（简化）。本地处理。可设置「指示空速」、「密度比 ρ/ρ₀」。TAS ≈ IAS × √(ρ₀/ρ) density-ratio demo (simplified). Processed locally. Settings: Indicated airspeed, Density ratio ρ/ρ₀.
使用说明与常见问题How-to & FAQ
「真空速估算器（示意）」是什么？What is the True Airspeed Estimator (Demo) tool?
TAS ≈ IAS × √(ρ₀/ρ) 密度比示意（简化）。本地处理。可设置「指示空速」、「密度比 ρ/ρ₀」。TAS ≈ IAS × √(ρ₀/ρ) density-ratio demo (simplified). Processed locally. Settings: Indicated airspeed, Density ratio ρ/ρ₀.
如何使用「真空速估算器（示意）」？How do I use the True Airspeed Estimator (Demo) tool?
在「真空速估算器（示意）」中，填写「指示空速」、「密度比 ρ/ρ₀」等参数，结果会随输入实时计算并显示在下方。In the True Airspeed Estimator (Demo): Fill in "Indicated airspeed", "Density ratio ρ/ρ₀"; results are recalculated instantly as you type.
高度？Altitude?
请自行换算密度比后再填。Convert altitude to a density ratio first.
哪些输入会被检查？Which inputs are validated?
「真空速估算器（示意）」会检查这些输入——「指示空速」、「密度比 ρ/ρ₀」：必须填写，须大于 0；绝对值超过 10¹⁵ 的数也会被拒绝。不符合时结果区显示具体提示，不会给出数字。The True Airspeed Estimator (Demo) checks its inputs — "Indicated airspeed", "Density ratio ρ/ρ₀": required, must be greater than 0; numbers above 10¹⁵ in absolute value are rejected too. When a value fails, the result area names the problem instead of showing a number.
有哪些选项可以调整？What options can I adjust?
「真空速估算器（示意）」的设置：「指示空速」默认 120；「密度比 ρ/ρ₀」默认 0.8。每次生成结果都按当前设置处理。Settings in the True Airspeed Estimator (Demo) — "Indicated airspeed" default 120; "Density ratio ρ/ρ₀" default 0.8. The result always uses the current settings.
计算结果可以用于作业或工程吗？Can I use the results for homework or engineering?
「真空速估算器（示意）」使用教科书标准公式（公式写在说明和常见问题中），适合学习和估算核对；涉及安全的工程设计请以规范和实测为准。The True Airspeed Estimator (Demo) uses standard textbook formulas (given in the description and FAQ), which is good for learning and checking estimates; for safety-critical engineering follow codes and measured values.
「真空速估算器（示意）」免费吗？需要注册吗？Is the True Airspeed Estimator (Demo) free? Do I need an account?
「真空速估算器（示意）」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The True Airspeed Estimator (Demo) is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.