Eric Robb RC Eric Robb EricRobbRC.com · Builds · Tools · Custom Parts
The Library

Free Guides for RC Builders

Everything here is free — no email required.

Getting Started
Part 1 · Learn to Fly

New here? Read in this order — each one builds on the last:

Getting started in RC

The cheap, scratch-built path into the hobby — the same approach from the YouTube channel. Start at the top and work down.

Popular Questions

The questions every builder asks

Straight answers first, then a mini-tool on every page that works it out for your plane.

What Do All These Terms Mean?

ESC, Kv, C-rating, CG, expo — every bit of RC jargon on this site, explained in plain English.

Open the glossary →

Rules, Safety & Where to Fly

TRUST, registration, Remote ID, finding a field, wind limits and prop safety — with official sources.

Know before you fly →

Fold Perfect Foam-Board Tubes

Mark the dimension four times, channel the second and fourth faces, fold once. Animated, with a marking calculator.

Learn the fold →

Which Plug Is On My LiPo?

XT60, Deans, EC3, IC3, JST — identify any RC battery connector by shape and color, and fix the doesn't-fit-my-charger problem.

Identify my plug →

Why Does It Drift When I Let Go?

That's trim. Pick what the plane is doing and get the exact click, which way, and the after-landing fix that makes it stick.

Trim it out →

How Do I Set Up My Transmitter?

Bind, channel order, the stand-behind-the-plane reversing test, starting rates and expo, throttle cut — in the order that prevents crashes.

Set up the radio →

Where Should the CG Be?

25–30% of the mean aerodynamic chord back from the leading edge — enter your chord and get the balance point in inches.

Get the number →

RC Airplane Wiring Diagram

The standard power chain — battery, ESC, motor, receiver, servos — labeled and printable.

See the diagram →

How Do I Match Motor, ESC, Battery & Prop?

Tap your wingspan and get the matched power-system combo I actually fly, part by part.

Match my parts →

Free Foam-Board Plans

Five real builds with their dimensions — from the $1 30-minute plane to the 5-foot cargo hauler.

Browse the plans →

First-Plane Parts List

The ten parts that build and fly a first plane — exact picks, why each one, about $140–170 all-in.

See the list →

Why Won't My RC Airplane Fly?

Six symptoms cover almost every grounded plane — pick yours and get the cause plus the fix.

Find the fix →
Gear & Buying Guides
Part 2 · Look It Up

Reference material — buyer's guides, identification pages, and the lighting system. Come back whenever you need an answer.

What to buy, without guessing

Matched parts and honest buyer's guides — from a beginner's first kit to the high-ticket tools serious builders ask about.

Free Tools

Tools that do the math for you

Guides teach you the ideas — these tools give you the numbers and diagrams for your exact build. All free, no signup.

See everything in one place on the Free Tools page.

RC Lighting

RC lighting, explained

How to light your build the right way — what strips to use, where the lights go, and what to check before you order.

LED Controller

Wi-Fi LED Controller resources

Everything for picking strips, wiring the controller, and getting your lights running.

Ready to stop reading and start building?

The guides give you the ideas — the tools give you the numbers. Design your plane with real starting numbers, or ask me directly if something here didn't answer it.

Open the Airplane Designer Start from zero Ask a Question
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One printable page covering what these guides teach: what to buy, how to set up, and the preflight that saves your maiden. I’ll also send new guides and tools as they land. No spam, unsubscribe anytime.