reddit · SideProject · 10-01 22:50 54 分 ← 返回列表

I built a free build calculator, blackbox analyzer and browser sim for tiny FPV drones, with flight times anchored to builds I actually weighed and timed

I fly 65–85mm FPV "whoops" (the tiny indoor drones). Most FPV calculators are built around 5-inch quads, and the math falls apart at whoop scale: tiny high-KV motors lose a lot of RPM under load, so naive pitch × RPM formulas overestimate speed badly. So I built https://quadmath.com . What's on it: - **Build calculator** – motor KV, prop, pack and dry weight in; flight time, thrust-to-weight and all-up weight out. If your inputs match one of my measured builds, it swaps the estimate for

五维评分

付费意愿

需求真实度

个人可落地

竞争空间

新鲜度

AI 分析

痛点：现有 FPV 计算器大多面向 5 英寸机，whoop 小机的高 KV 电机负载掉转速严重，导致速度、续航和推力估算明显不准，缺少面向小机的实测校准工具。

目标用户：65–85mm 室内 FPV whoop 玩家、Betaflight 调参爱好者、小机 DIY 玩家。

证据：Most FPV calculators are built around 5-inch quads, and the math falls apart at whoop scale... Free, no signup, no ads.

变现：免费基础工具 + Pro 订阅（高级黑匣子分析、调参建议、云同步、历史数据），叠加配件联盟链接、Patreon/赞助、付费调参数据库或预设包。

MVP：2 周内做 whoop 专用构建计算器：输入电机 KV、桨、电池、干重，输出续航、推重比和全重；支持分享链接，并内置少量实测校准数据。黑匣子分析可先接现有 Betaflight 日志解析库，浏览器模拟暂缓。

竞品：FPV Calculator / eCalc、Betaflight Blackbox Explorer、RotorBuilds、Liftoff、Velocidrone

摘要：作者发布免费工具 quadmath.com，面向 65–85mm whoop，提供构建计算、黑匣子分析和浏览器飞行模拟，并指出 5 英寸计算器在小机尺度上数学失效。目前完全免费、无注册、无广告，没有直接付费或收入证据，但小众痛点明确。