FMS Extra 300 V2 1100mm Review: A Sport Aerobat That Earns Its Wings — With One Glaring Catch

FMS markets its Extra 300 V2 as a 3D-ready aerobat for ambitious pilots. Rigorous flight testing tells a more complicated story — and reveals a hardware issue the box won’t warn you about.

The Extra 300’s name carries genuine weight. In the full-scale world, Walter Extra’s angular, square-tailed monoplane defined international aerobatic competition for decades. Every RC version that borrows that silhouette inherits some of that mystique — and a buyer’s correspondingly high expectations. The FMS Extra 300 V2 1100mm lands squarely in one of the most contested corners of the electric foamie market: the transitional pilot segment, where a modeler who has outgrown a self-stabilizing high-wing trainer is itching to start throwing loops, axial rolls, and knife-edge passes.

FMS markets this airplane aggressively as a capable, 3D-ready aerobat for intermediate to advanced pilots. That claim deserves direct scrutiny. We tested the Extra 300 V2 through the full aerobatic envelope it’s advertised to handle, documented its real-world assembly experience, and measured it against its closest competitors. What we found is a picture considerably more nuanced than the product page suggests — and informed by a documented hardware problem that no amount of enthusiastic marketing copy should be allowed to obscure.

Whether you’re deep in your research on the best RC planes for your next step up or narrowing down a specific shortlist, the Extra 300 V2 earns a serious look — but only if you go in with a clear picture of what it actually is, what it genuinely cannot do, and what you’ll need to fix before the maiden flight.

Brief Overview

What It Is

The FMS Extra 300 V2 1100mm is a PNP (Plug-N-Play) electric aerobatic foamie with a wingspan of 1,100mm (43.3 in.) and an overall length of 1,080mm (42.5 in.). Flying weight comes in at 1,100g (38.8 oz.). The airframe is constructed from EPO (Expanded Polyolefin) foam with internal tube spars bonded into the wing and tail sections at the factory, providing a rigid skeletal structure that resists flex and twist under aerodynamic load. Power is delivered by a pre-installed 3541-1230kV brushless outrunner motor, controlled by a 40A ESC equipped with an XT60 battery connector. Four 13g digital full metal-gear servos operate the control surfaces, and the recommended prop is an 11×5.5 two-blade unit. The recommended CG sits 85–90mm aft of the leading edge.

As a PNP, this aircraft ships without a radio transmitter, a compatible receiver, a Li-Po flight battery, or a charger. These are non-negotiable additional expenses that belong on your pre-purchase checklist.

Who It’s Aimed At

This plane is designed for pilots who have graduated from self-stabilizing high-wing trainers — those who understand basic stick inputs, can manage a landing approach, and are ready to explore traditional sport aerobatics: precise loops, axial rolls, sustained inverted passes, Cuban eights. If you’re still early in the journey and shopping among the best RC planes for beginners, the Extra 300 V2 is not your first airplane. It demands a pilot who already knows how to respond when something goes wrong at low altitude.

Features Worth Noting

Four elements stand out from a practical standpoint. First, the main structure assembles with approximately 10 screws — the process is virtually glueless for the primary joints, making field preparation genuinely fast. Second, the symmetrical airfoil geometry delivers consistent, predictable aerodynamic behavior in both upright and inverted flight. Third, a large magnetic battery hatch on the fuselage enables rapid Li-Po pack swaps between flights with no tools required. Fourth, the pre-wired power system (motor, ESC, servos all factory-installed) eliminates the wiring complexity that intimidates many newcomers stepping into low-wing aircraft.

Key Specifications

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Pros & Cons

Pros

• Fast, glueless assembly. Main structure goes together with ~10 screws. No adhesive required for primary joints — a genuine convenience at the flight line.
• Symmetrical airfoil delivers clean inverted performance. Loops, rolls, and extended inverted passes are consistent and predictable; no fighting inherent lift tendencies on the knife-edge.
• Pre-installed power system. Motor, ESC, and servos arrive factory-wired. Zero soldering or wiring work for the buyer.
• Magnetic battery hatch. Rapid Li-Po swaps with no tools. A practical detail that makes multi-flight sessions less tedious.
• EPO foam absorbs hard landings. Field-repairable with CA adhesive. An inevitable off-field arrival won’t necessarily end your flying day.

Cons

• Factory servos are a documented liability. The included 13g units exhibit inconsistent neutral centering and insufficient torque under aerodynamic blowback. Servo replacement before the maiden flight is strongly recommended.
• Heavy stock spinner assembly ruins 3D capability. The excess rotating mass introduces gyroscopic precession and pulls the CG forward, actively fighting post-stall maneuvers.
• Vicious high-G tip-stall tendency. Rapid full-up-elevator inputs at speed can trigger an asymmetric, snapping wing drop. Not beginner-safe at low altitude without prior awareness.
• PNP only — budget for the full system. Radio, receiver, battery, and charger are all additional costs. Factor them in before comparing prices with BNF alternatives.

Build Quality, Assembly & Out-of-Box Experience

Construction & Materials

FMS builds the Extra 300 V2’s airframe from EPO foam — the modern industry standard for everyday foamies. Unlike balsa, which shatters on impact, EPO’s elastic properties allow it to compress and rebound, absorbing kinetic energy from hard landings without crumbling into splinters. A crack or compression fracture can be fused back together with cyanoacrylate (CA) adhesive or foam-compatible epoxy at the flight line in minutes, not days. That resilience matters considerably for a pilot still calibrating the reflexes required by a low-wing aerobat.

The internal tube spars bonded into the wing and tail sections during manufacturing are where EPO construction moves beyond brute survivability. These spars create a rigid internal skeleton, preventing the foam panels from flexing or warping under the severe aerodynamic loads of high-G loops and rolling maneuvers. The airframe feels purposeful and taut when you pick it up — not like a slab of packing foam with servos embedded in it.

Assembly Process

FMS deserves real credit for the assembly experience. The main structure goes together with approximately 10 screws; the primary joints require no adhesive whatsoever. The control surface ball links are pre-installed and pre-adjusted at the factory. The one exception: the wingtip vortex generators require adhesive to attach. The process is entirely manageable for a builder tackling their first low-wing, and the absence of a wiring task removes a significant source of anxiety for newcomers.

The instruction documentation covers the basics. Transmitter programming — specifically Dual Rates and Exponential (Expo) curves — requires outside research from the buyer, as the manual does not address this in the depth the aircraft demands. Configuring high and low dual rates before the maiden is not optional; it is a functional requirement for flying this airplane safely.

Electronics & Power System

The pre-installed 3541-1230kV brushless outrunner is well-matched to the airframe for sport-aerobatic work, and the 40A ESC handles the load comfortably. The ESC’s integrated Battery Eliminator Circuit (BEC) steps the flight pack voltage down to a stable level for the receiver and servos, eliminating the weight and complexity of a dedicated receiver battery. The XT60 battery connector is a sensible choice for this power class.

Battery requirement: a 3S (11.1V) to 4S (14.8V) Li-Po with a capacity in the 2,200–2,500mAh range. For routine sport flying, a 30C discharge-rated pack is the minimum. For aggressive aerobatic sessions — and especially for any foray into 3D — a pack rated 50C or higher is strongly recommended. An undersized C-rating will cause voltage sag under heavy load, degrading motor response precisely when you need it most and accelerating pack degradation.

The factory 13g digital metal-gear servos are where this aircraft’s out-of-box experience falls apart. Empirical testing and consistent community field reports document unreliable neutral centering and inadequate torque under aerodynamic blowback — the force the airstream exerts against large control surfaces during high-speed maneuvers. If a servo lacks the torque to hold against that load, the control surface deflects toward neutral without the pilot commanding it, producing a sudden, alarming loss of control authority mid-maneuver. Budget for high-quality aftermarket replacements (Hitec and AGFRC are well-regarded in this class) before the maiden flight. This is not a precaution; it is a necessity.

Field-Ready Time

From transport to flight-ready, a practiced hand can have the Extra 300 V2 in the air in under ten minutes. Wing attachment, battery installation through the magnetic hatch, and a CG check — that’s the field checklist. The modularity is genuine and practical.

Flight Performance

Takeoff & Ground Handling

The Extra 300 V2 taxis predictably on pavement or firm-packed turf. At the recommended CG of 85–90mm from the leading edge, the tail lifts cleanly as speed builds, and the transition to flight requires only modest back-stick input. Takeoff roll is short at full throttle — this is a light, powerful machine, and it gets airborne quickly.

Basic Flight Characteristics

On low rates and in calm air, the Extra 300 V2 is reassuring. It tracks cleanly, holds its heading, and responds to inputs without drama. The symmetrical airfoil gives it a neutral stability profile — it will not fly itself back to level if you let go of the sticks the way a flat-bottomed trainer will, but neither does it actively fight you. Wing loading is light enough that moderate winds require meaningful rudder coordination. In gusty conditions, the airframe’s light weight works against it; the Extra 300 V2 can be pushed around noticeably by crosswinds.

Aerobatic Capability

Here is where the Extra 300 V2 genuinely earns its wings — within a specific and clearly defined envelope. Precision loops are round, consistent, and satisfying. Axial rolls are fast and clean. Cuban eights, high-speed knife-edge passes, and extended inverted flight all land squarely inside this airplane’s capabilities. For a transitioning pilot looking to build a real aerobatic repertoire, these maneuvers will be both accessible and rewarding.

Then there is 3D. FMS’s marketing positions the Extra 300 V2 as 3D-capable, and that claim is where the empirical picture diverges significantly from the promotional narrative. The stock propeller and spinner assembly are inordinately heavy for a model of this size. That rotating mass behaves like a gyroscope: it resists rapid attitude changes in yaw and pitch — the precise inputs required for 3D tumbles, waterfalls, and blenders. The result is an aircraft that feels sluggish and uncooperative in exactly the maneuvers it’s being sold on. Gyroscopic precession is physics; it cannot be dialed out with expo.

The excess weight at the nose also biases the CG forward of where a genuine 3D machine needs it. A forward CG enhances the locked-in tracking that makes sport aerobatics satisfying; it actively prevents the high-AOA, tail-heavy regimes that define 3D hovering, harriers, and knife-edge spinning maneuvers. The Extra 300 V2 does not hover well. Spool-up latency from the heavy prop assembly means that instantaneous throttle bursts — critical for catching a falling wing during a hover attempt — arrive a beat too late.

Control Response & Rate Sensitivity

Dual rates and expo are not suggestions for this aircraft; they are prerequisites. On high rates without expo, the Extra 300 V2 is twitchy and difficult to fly smoothly. Dialing in 60–70% positive exponential on all three axes softens the response around center stick without sacrificing full-deflection authority at the extremes. This setup provides a forgiving envelope for smooth sport aerobatics while preserving the surface travel needed for more aggressive work. Program the rates before the airplane leaves the bench.

Stall Behavior & Landing

During sedate, level flight, the Extra 300 V2 stalls predictably and recovers without drama. The picture changes fast under G-loading. Pull full up-elevator at speed — the kind of pull a beginner might make trying to tighten a loop — and the AOA spikes past the critical angle almost immediately. Because the wing lacks washout or side force generators, one wingtip stalls before the other. The result is a rapid, snapping roll toward the stalled wing. At low altitude, that sequence is not recoverable. This is the Extra 300 V2’s most consequential flight characteristic, and it warrants direct, prominent discussion — not a footnote.

Approach and landing, by contrast, are manageable on a properly set-up airframe. The airplane glides reasonably well with power back, and a stable approach speed gives the pilot enough time to correct minor sink or drift deviations. The wider the landing area, the less penalty for a long float.

How It Compares

The most instructive comparison is the one FMS makes against itself. The FMS MXS V2 1100mm shares the identical 3541-1230kV power system, the same EPO construction, and the same price bracket. But the MXS V2 incorporates a hollow wing structure (meaningfully reducing overall flying weight), oversized control surfaces with extra-long servo arms for massive over-center throws, and — most critically — wingtip Side Force Generators (SFGs). Those SFGs physically fence high-pressure air under the wing, virtually eliminating the tip-stall tendencies that plague the Extra 300, and provide secondary vertical stabilizer authority for locked-in knife-edge flight. For any pilot whose priority is learning 3D, the MXS V2 is the superior choice at a virtually identical base price point. That is a direct, evidence-based fact, not an opinion.

Where the FMS Extra 300 V2 1100mm Really Shines

Fly the Extra 300 V2 within its actual envelope — not the one in the marketing materials, but the one defined by its aerodynamics — and you have an airplane that delivers genuine, repeatable satisfaction. Picture a clear Saturday morning, a long runway, a fresh 4S pack, and a sequence of eight full consecutive loops, each one round and locked in at the same altitude. Or a series of four-point rolls, each hesitation crisp, the nose tracking a fixed point on the horizon. Or a fast, low inverted pass that draws a noise from the flight line. That is the Extra 300 V2 doing exactly what it does best.

For the pilot graduating from a HobbyZone AeroScout or an FMS Ranger V2, the transition onto this airplane represents a real, meaningful step in skill development. It is agile without being uncontrollable. The EPO construction means that the inevitable off-field arrivals and overcooked approaches will not necessarily destroy the airframe. The glueless assembly gets you in the air faster than balsa ever would. And the classic Extra 300 silhouette — those unmistakable angular lines, the broad chord wing, the round cowl — still draws attention at the flight line in a way that generic foam geometry simply does not.

For a pilot who enjoys smooth, scale-like aerobatics, appreciates the visual heritage of the Extra 300 design, and is willing to invest in aftermarket servo upgrades, this airframe offers solid, durable performance at a competitive price point for the PNP 1100mm electric aerobat category. It does not punch above its weight class in 3D. But for traditional precision aerobatics, it holds its own.

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Who Should Buy It

This Airplane Is Right For You If…

• You just graduated from a trainer and want to fly precision aerobatics. If you can hold a stable climb, execute a basic turn without losing altitude, and manage a landing approach, the Extra 300 V2 is a logical next step. It will teach you what a low-wing, symmetrical-airfoil airplane actually feels like — and the maneuvers it rewards are worth learning.
• You want a sport aerobat with classic aesthetics that fits in a standard vehicle. The 43.3-inch wingspan and EPO construction pack down into a manageable transport footprint. If you want an electric aerobat that looks the part and assembles quickly at the field, this airplane delivers.
• You’re willing to swap the servos before flying. If you’re comfortable sourcing and installing quality aftermarket metal-gear servos before the maiden, the airframe itself is a competent foundation. The electronics upgrade converts a liability into an asset.

Look Elsewhere If…

• If your primary goal is to learn 3D flight — hovering, harriers, rolling circles, waterfalls — the FMS MXS V2 1100mm is the correct purchase. It shares the same footprint and price point, but its hollow-wing weight reduction, oversized control surfaces, and wingtip Side Force Generators make it a fundamentally better 3D machine. Spending the same money on the Extra 300 V2 while hoping to develop serious 3D skills will produce frustration, not progress.
• If you want integrated stabilization and wind-mitigation technology from day one, the E-flite Extra 330 SC 3D 1.3m is in a different tier entirely. Its BNF Basic configuration — built around an AR631 receiver, an 85A Avian Smart Lite ESC, AS3X wind-mitigation gyros, and SAFE Select angle-limiting technology — provides a significantly more sophisticated flight envelope at a correspondingly higher investment.
• And if you are a true first-flight beginner, this is not your airplane. The tip-stall characteristics at low altitude, the rate sensitivity, and the absence of any self-stabilization technology make the Extra 300 V2 a machine that punishes inattention. Pilots eyeing the larger 1300mm class on a tighter budget should also take a look at the Arrows Edge 540 1300mm — a competitively priced, fully 3D-capable alternative built around oversized control surfaces and an included Vector gyro stabilizer, and without the premium price tag of the E-flite tier.

Final Verdict

For the intermediate pilot who genuinely enjoys smooth, traditional sport aerobatics, appreciates the iconic Extra 300 lineage, and budgets for servo upgrades from the start, the FMS Extra 300 V2 1100mm earns a solid 7 out of 10 — but anyone chasing serious 3D capability needs to look at the MXS V2 instead.