Build Your First RC Airplane

Why this is the right first plane

Ever spent 30 hours on a beautiful balsa plane and crashed it on the first flight? Foam board costs a couple of dollars a sheet, so a crash costs you an evening, not a month — and on your first plane, you will crash. That single fact is why I put every beginner on this build. It also flies genuinely well: it's slow, stable, and forgiving, the three things a trainer needs to be.

It's better engineering than it looks, too. Foam board is a sheet of foam with paper laminated to both sides. The foam gives it thickness and light weight; the paper skin is where the strength lives, exactly like an I-beam — the two paper faces carry the loads and the foam just holds them apart. That's why a floppy sheet turns rigid the moment you fold it into a box or an airfoil, and why you leave the paper on wherever you can.

And it's a 3-channel plane — rudder, elevator, throttle, no ailerons. Fewer moving parts to build, fewer ways to crash, and the dihedral in the wing does the leveling for you. It's the easiest configuration there is to learn on.

Dimensions & materials

Everything you need to cut the plane — all straight lines and folds. These are the dimensions I build to: copy them onto your foam, or open the printable cut guide (a one-page cut list you can print or save). The one number to fine-tune on your own build is the CG — set it with the wing and battery position.

Shopping list — the exact electronics

This is the same class of parts I fly on all my 30–40″ foam board planes, and it's sized to work together — the motor, ESC, battery and prop are a matched set, not a random pile. Every link goes straight to the part. As an Amazon Associate, I earn from qualifying purchases at no cost to you.

Plus hot glue, rubber bands, and a little velcro for the battery. Building a different size? The free Checklist Builder re-sizes this whole list for any wingspan, and the gear guide explains every pick.

The build sequence

Everything below comes straight from the video, in order. The airframe is about 15 minutes of big forgiving glue joints; the electronics are the fiddly part.

1. Cut the wing spar

Score a strip of foam down the middle, crack the score open, and glue it back on itself so it forms an angle. That doubled-up strip is the spar — it runs inside the wing and carries the bending load so the wing doesn't fold in flight. Weigh it down flat while it dries.

2. Fold the airfoil wing

The wing is one 30″-wide piece. Mark the leading-edge fold line, cut the two 45° bevels off the leading edge so it folds cleanly, and score the lines that let the top skin curve. Glue the spar down, then run glue along the fold spots and fold the top surface over the spar. Hold it down evenly for a couple of minutes — a lifted trailing edge here means a warped wing later. That fold turns a flat sheet into a real airfoil: curved on top, flat on the bottom. It doesn't need to be perfect.

3. Add dihedral

Cut relief marks near each tip section (you'll cut through to the spar — don't sweat perfection), fold the tips up a few degrees, and glue them propped up evenly on both sides.

Why this matters more than any other step: dihedral is what makes a rudder-and-elevator plane self-leveling. When it banks, the low wing meets the air at a higher effective angle, makes more lift, and rolls the plane back toward level. It's free stability — and it's the whole reason a 3-channel plane flies without ailerons. The rudder yaws the nose, the dihedral turns that yaw into a gentle bank, and you're turning.

4. Build the tail

Cut the elevator (~5″×12″) and the rudder (~8″×5″) from scrap, cut in the control surfaces (leave the paper on one side as a living hinge, or tape them), then glue the rudder vertically on top of the elevator. Check it from the front — a leaning rudder builds in a permanent turn.

5. Fold the box fuselage

The fuselage is a 30″ box: score even lines down a sheet, fold each score to 90°, and hot glue it square. Cutting 45° bevels at each corner is cleaner, but plain scoring is faster. Cut a 45° angle off the rear so the tail sheds weight and sits nicely, then glue the tail on.

6. Mount the wing with skewers and rubber bands

Push two bamboo skewers through the fuselage — one ahead of the wing, one behind — and stretch rubber bands over the wing between them. This is old-school trainer wisdom and still the best beginner wing mount there is: in a hard landing the wing pops off instead of snapping, and you can slide the wing forward or back to fine-tune your CG without rebuilding anything.

7. Install the electronics

This is the honest part: the electronics take as long as the whole airframe. None of it is hard, all of it is fiddly — mounting servos, making Z-bends in pushrod wire, fitting control horns on the hinge line, setting linkage lengths so the surfaces sit neutral, mounting the motor, and connecting the ESC and receiver. Budget for it and it won't frustrate you. Two shortcuts worth stealing: 3D-printed or popsicle-stick control horns, and mounting the tail servos right at the tail (mounting them forward is better for CG, but rear is faster and this plane carries it fine with the battery pushed forward).

Wiring it up

A basic plane is five electrical parts and four connections — that's the whole system. Follow the power and it makes sense:

Want it drawn for your exact parts? The free Wiring Designer generates a color-coded diagram in the right hookup order and flags the mistakes that fry electronics, and RC Plane Connections, Simplified walks through every plug. If a word like "ESC" or "BEC" is new, RC Electronics Explained covers it.

Balance point (CG) & control throws

CG is the one number you must not skip. A tail-heavy plane is unflyable and un-fixable in the air — it's the #1 killer of maiden flights. Balance this plane about 25–33% of the wing chord back from the leading edge — roughly 2–2½″ back on a 7–8″ chord. Lift it on two fingers there: it should sit level or just slightly nose-down. Slide the wing or the battery to adjust. When in doubt, nose-heavy is safe and boring; tail-heavy is exciting right up until it crashes.

Set control throws generous but not wild. Good beginner starting points:

• Elevator: about ½″ up and down at the widest point of the surface.
• Rudder: about ¾″ each way.
• Expo: dial in 20–30% to soften the center of the stick so small corrections stay small.

Too much throw makes the plane twitchy and easy to over-control; too little makes it sluggish in wind. The RC Calculators put an exact CG number on your specific wing, and the Airplane Designer does it if you change the size.

Transmitter setup

Do all of this on the bench, before you ever go to the field:

• Bind the receiver to your transmitter (a one-time pairing — button on the RX, follow your radio's steps).
• Create a model in the radio and set it to airplane / acro. Zero the trims and sub-trims.
• Check control directions standing behind the plane: pull the stick back → elevator goes up; push right rudder → rudder goes right. Reverse any channel that's backwards in the menu — never by rewiring.
• Set throttle low and arm-check: the motor should only spin with the throttle stick up. Set a throttle cut so you can kill the motor instantly.
• Set failsafe so the motor goes to idle if you lose signal.
• Center the surfaces with sub-trim so rudder and elevator sit dead neutral at center stick.

Preflight checklist

Run this every single flight. It takes 60 seconds and prevents most crashes:

• Battery fully charged and strapped in tight (a battery that shifts in flight moves your CG)
• CG checked — balances at ~25–33% chord, slightly nose-down
• Control surfaces move the correct direction and sit neutral at center
• Prop on tight and undamaged, nut secure
• Motor pod taped, not just glued (read the crash lesson below)
• Range-check the radio using your transmitter's own range-test mode (see below)
• Throttle at zero before you plug in the battery
• Prop blast goes backward; wind is in your face on launch

Before you fly: the rules & where to fly

Sort two things before the maiden — the rules and the spot — and get a second set of eyes if you can.

• The rules (U.S., recreational). This plane is over 250 grams, so plan to pass the free FAA TRUST test and carry proof, register with the FAA and mark the aircraft with your registration number, and comply with Remote ID unless you're flying within a FRIA or another exception applies. Stay within visual line of sight and yield to full-scale aircraft. Rules can change — check the FAA before you fly.
• Where. A big open field away from people, roads, and power lines. Check the airspace first with B4UFLY — being on private property doesn't make the airspace above it open.
• Get a hand. You can fly your first plane solo, but an experienced pilot at a model-aircraft club will spot reversed controls, a bad CG, or a weak radio install before they bite — and can run your first range check or take the sticks for the maiden. Range-check with your transmitter's own range-test mode; don't trust one universal distance.

The full rundown — license, registration, Remote ID, where to fly, finding a club, and range checks — is in Start Here.

Rules above apply to recreational flying in the United States. Pilots elsewhere should check their national aviation authority and local rules.

The first flight

Pick a calm morning — wind is a beginner's worst enemy — and a big open field with tall grass if you can (soft landings). Then:

1. Hand launch with authority: throttle up to about ¾, hold the plane level, and throw it straight ahead into the wind — level and firm, not up at an angle. A weak lob stalls; a confident level throw flies.
2. Climb gently to a comfortable altitude — "three mistakes high." Height is free time to fix things.
3. Trim it so it flies straight and level hands-off. Small trim taps, one at a time.
4. Turn with rudder — a little rudder, let the dihedral bank it, a little up-elevator to hold altitude through the turn. Make big lazy circles.
5. Land into the wind: throttle back, let it descend in a shallow glide, and ease off the last bit of altitude with gentle up-elevator. Power off before it touches.

Common beginner mistakes

• Tail-heavy CG. The number-one maiden killer. If in doubt, add nose weight. Nose-heavy flies fine; tail-heavy doesn't fly at all.
• Reversed controls. Always check surface directions behind the plane before every maiden. A reversed elevator ends the flight in two seconds.
• Only gluing the motor pod. Tape it. (See above.)
• Too much power, too much throw. This plane needs a 3S and modest throws. A 4S and 10″ prop is more than the airframe can take.
• Flying in wind. Wait for a calm day. A light plane in gusty wind teaches you nothing but frustration.
• Over-controlling. Relax. Small inputs, then wait for the plane to respond. Beginners stir the sticks; let the dihedral do the work.

When it breaks — field repairs

It will break, and that's fine — this is the most repairable airplane material there is. Keep hot glue, a knife, and packing tape in your field box:

• Cracked foam / broken joint: re-glue with hot glue and reinforce the seam with a strip of packing tape on both sides. Tape is a legitimate structural repair on foam board.
• Snapped or torn hinge: re-hinge with a strip of clear tape across both surfaces — flexible and nearly weightless.
• Bent prop: replace it, never fly a chipped or bent prop (it vibrates and can throw a blade).
• After any real crash: check the wing for a hidden spar crack and re-check CG before the next flight — a repair can shift the balance.

If it flew and then something went wrong you can't explain — it rolls off on its own, won't climb, stalls in turns — walk it through the Flight Doctor. Describe the symptom and it points you at the cause.