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The best gas-powered RC boat for most buyers is the Bonzi 50-inch Ready-to-Run, because it is the most complete package in this round-up, shipping with the transmitter, servos and receiver battery you need to launch it. That distinction carries more weight than it sounds: a gas-powered RC boat is a different purchase from an electric one, and the specialist market is small enough that most builders sell you a hull with an engine already installed and leave the rest to you.
Gas means gasoline mixed with two-stroke oil and lit by a spark plug. It is not nitro, not methanol, not glow ignition, and not a brushless electric boat with a "gas equivalent" label attached. Sanctioning bodies classify those three power systems separately, and so should you, because the fuel you mix, the noise you produce and the maintenance you perform are all different.
This round-up separates the three things people actually buy: factory-built boats from Bonzi Sports and Enforcer that you fuel and run, a composite custom-order tunnel from Arrow Shark, and three Zippkits wooden hull kits for builders. Every pick lists what comes in the box and what does not, because the gap between a bare hull and a running gas boat is where most buyers get surprised.
Quick Picks
| Pick | Best for | Hull | Engine | Complete package? |
|---|---|---|---|---|
| Bonzi 50-Inch RTR | Most complete package | 50 in mono | Zenoah G260PUM 25.4 cc | Yes, radio and servos included |
| Enforcer Team Enforcer 46 | Classic water-cooled mono | 46 in mono | Zenoah G260PUM 25.4 cc | Radio package extra |
| Bonzi 47 Skater Cat | Factory-built gas cat | 47 in catamaran | Zenoah G260PUM 25.4 cc | Radio and servos included |
| Enforcer Super G | Cheapest way into a running gas boat | Not published | Zenoah G230RC 22.5 cc air-cooled | Radio package extra |
| Bonzi 54 Fountain | Large offshore deep-V | 54 in deep-V | Zenoah G260PUM 25.4 cc | Radio and servos included |
| Arrow Shark SX49 X-30 | Premium composite outboard tunnel | 49 in tunnel | Arrow Shark X-30, 30 cc class | Transmitter and receiver excluded |
| Zippkits Super Sport | Cheapest gas hull kit | 46 in shallow-V mono | Your choice, 23 to 30 cc | Hull kit only |
| Zippkits ProVee | Race-oriented gas mono kit | 48 in racing V | Your choice, 23 to 30 cc | Hull kit only |
| Zippkits SLR Missile | Sport-hydro kit | 48 in hydroplane | Zenoah 260 for class rules | Hull kit only |
What Makes a Great Gas-Powered RC Boat?
Four things decide whether a gasoline boat is worth owning, and none of them is top speed.
It has to be genuinely gasoline. Spark ignition, gasoline premixed with two-stroke oil, a carburettor and a tuned exhaust. If a product page shows a lithium battery pack and a Kv rating, it is an electric boat and does not belong in a gasoline comparison, no matter what the listing title says.
You need to know what is in the box. A "ready to run" gas boat from Enforcer still requires you to select and pay for the Futaba 3PV radio package to complete it. Bonzi's complete boats advertise the transmitter, receiver, throttle servo, quarter-scale steering servo, receiver battery pack, charge jack and charger as part of the package. Same category, different amount of shopping.
Parts support beats claimed power. The Zenoah marine family is the reference because it appears in current production boats and its spares are findable. A tuned aftermarket engine can post a higher historical horsepower figure and still leave you stranded next season when a reed, a bearing or a carburettor diaphragm is unobtainable.
Safe shutdown is a system, not a checkbox. Three separate protections do three separate jobs. A throttle return spring biases the carburettor toward idle if the linkage fails. A receiver failsafe commands a preset throttle position when radio contact is lost. Only an ignition kill switch actually stops the engine, and the Killer RC Super Bee is the dedicated module for that job, with signal-loss shutdown, low receiver-voltage shutdown and manual kill control. A failsafe alone can leave a petrol engine idling in open water. An ignition kill stops the prop but does not bring the hull back, so a rescue plan belongs in the same conversation.
One more criterion that catches buyers out: a gasoline boat is usually louder and always more restricted than an electric one. Check the venue before you check the spec sheet.
#1 Bonzi 50-Inch Ready-to-Run: The Most Complete Gas Boat You Can Order
| Spec | Detail |
|---|---|
| Hull | 50-inch fiberglass mono |
| Engine | Zenoah G260PUM, 25.4 cc, water-cooled, spark ignition |
| Drive | Bonzi CNC engine mounts, clutch, CZ outdrive |
| Exhaust | Bonzi tuned pipe with stainless header |
| Cooling | Bonzi two-in, two-out water pump system |
| Included | Fuel tank, radio box, fittings, water stand, Futaba 3PV transmitter and receiver, throttle servo, quarter-scale steering servo, receiver battery pack, charge jack, charger, failsafe |
| Still needed | Gasoline and two-stroke oil |
The 50-lb package weight and 62 × 18 × 14-inch carton dimensions you see on the listing describe shipping freight. They are not the boat's running weight, and readers should not treat them as such.
This is the cleanest entry into gasoline boating because the two tasks that stop most first builds, sourcing a radio system and setting up a quarter-scale steering servo, are already done. What remains is fuel and a pre-launch inspection: radio-box sealing, water flow from the pickup through the jacket and out the overboard outlet, and confirmation that an ignition kill is fitted or will be. If a seller will not confirm the kill switch, budget for the Super Bee module at the same time.
Pros:
- Radio, both servos, receiver pack and charger are part of the advertised package
- Standard Zenoah G260PUM with the best spare-parts trail in the category
- CNC engine mounts, clutch and CZ outdrive as factory hardware
Cons:
- A 50-inch hull needs serious open water and a venue that permits internal combustion
- Large-hull freight is a real logistical step, not a courier drop
- Ignition kill switch and spare propeller are not safely assumed
Verdict: the lowest-friction route to a running gasoline boat, and the yardstick every other complete package on this list should be measured against.
Perfect for: a first-time gas buyer who wants to fuel, launch and tune rather than source electronics.
Not sold on Amazon: available direct from the maker.
#2 Enforcer Team Enforcer 46: The Classic Water-Cooled Gas Mono
| Spec | Detail |
|---|---|
| Hull | 46-inch gel-coated fiberglass mono |
| Engine | Zenoah G260PUM, 25.4 cc, water-cooled |
| Drive | Clutch-equipped drivetrain, Enforcer SPD III drive |
| Steering | Dual rudders, adjustable trim tabs |
| Propeller | 75 mm two-blade |
| Exhaust | Enforcer Pro Wet Tuned system |
| Cooling | Water pump and cooling plumbing included |
| Fuel tank | Approximately 28 US fluid ounces |
Enforcer's 30-lb listed package weight is a shipping figure too, not a running weight.
The Team Enforcer is the textbook Zenoah 260 gas-mono layout: wet tuned exhaust, twin rudders and adjustable tabs, which together give you somewhere to go when the boat porpoises or hooks in a corner. Your tuning levers are strut height and angle, turn-fin position, tab angle and propeller load, and the tabs are the first thing to touch rather than the last. The one catch is the radio: the retailer's configurator expects you to add the Futaba 3PV package with its Hitec HS-422 throttle servo and Hitec HS-755HB quarter-scale steering servo. The included four-cell holder is not a rechargeable receiver pack.
Pros:
- Full water-cooled mono layout with factory plumbing already installed
- Dual rudders and adjustable trim tabs give real setup range
- Enforcer lists 13 ready-to-run models in its catalog, so the platform is not a one-off
Cons:
- Radio, servos and receiver power are a separate selection
- Confirm the build and color options for each model with the retailer before ordering
- Wet exhaust and cooling plumbing need a leak check before every session
Verdict: the traditional gas mono done by the book, provided you plan for the radio line item from the start.
Perfect for: a buyer who already owns a compatible surface radio and wants a conventional water-cooled mono.
Not sold on Amazon: available direct from the maker.
#3 Bonzi 47-Inch Skater Cat: Factory-Built Gas Catamaran
| Spec | Detail |
|---|---|
| Hull | 47-inch fiberglass Skater-style catamaran |
| Engine | Zenoah G260PUM, 25.4 cc, water-cooled in the standard setup |
| Drive | CNC engine mounts, clutch, CZ drive |
| Exhaust | Tuned exhaust, water pump system |
| Included | Factory radio equipment advertised on the ready-to-run configuration |
| Still needed | Gasoline, two-stroke oil, a propeller matched to hull and engine |
A catamaran is not a mono with an extra sponson. Drive height, centre of gravity and rudder position do the work, and the vendor's own claim that this cat outruns a similarly powered mono is exactly that, a vendor claim, not a measured comparison. Enforcer also sells a factory-built Split-N-Image Cat: a 50-inch fiberglass cat with an XP-2C drive, offset rudder, 75 mm two-blade aluminium propeller, competition dry tuned exhaust and an optional modified G260PUM, again with the radio sold separately.
Pros:
- A factory-built gas cat rather than a kit, with the same G260PUM as the monos
- Radio and servos included on the RTR configuration
- Shares the Zenoah spares and pipe ecosystem with the rest of this list
Cons:
- Cats want calm, open water and reward careful drive-height setup
- Cornering behaviour differs enough from a V-hull that setup notes do not transfer
- The claimed handling and speed edge over a mono is Bonzi's own, with no published comparison
Verdict: the catamaran option for buyers who already know they have the water for one.
Perfect for: large-lake running where a cat's running surface suits the conditions.
Not sold on Amazon: available direct from the maker.
#4 Enforcer Super G: The Cheapest Way Into a Running Gas Boat
| Spec | Detail |
|---|---|
| Hull | Assembled fiberglass monohull |
| Engine | Zenoah G230RC, 22.5 cc, air-cooled, spark ignition |
| Starting | Recoil starter |
| Drive | Enforcer clutch-equipped drivetrain |
| Cooling | Air-cooled cylinder; verify whether the chosen exhaust uses water injection |
| Still needed | Futaba 3PV radio, receiver and servo package, gasoline, two-stroke oil |
Hull length and running weight are not published for the Super G. Do not read them out of the shipping carton dimensions.
The case for the Super G is mechanical simplicity. There is no water jacket to plumb, no pump circuit to prime and no overboard outlet to watch, so your pre-run checklist is shorter than on a 260 mono. The trade is output: Zenoah's published rating for the air-cooled G230RC is 1.79 kW against 2.16 kW at 12,000 rpm for the water-cooled G260PUM, which lines up with the price and the plumbing. Air cooling also means the engine needs air moving over the cylinder head, so a fully sealed cowling is the wrong idea. Enforcer uses the same air-cooled approach on its larger Mega G, which runs the 31.8 cc G320RC.
Pros:
- No water-cooling circuit to install, prime or maintain
- Lowest-cost way to own a complete gasoline boat with an engine already fitted
- Recoil starting and a simple clutch drivetrain suit a first gas boat
Cons:
- Air-cooled 22.5 cc makes less power than the 25.4 cc marine engines on this list
- Needs airflow over the cylinder, which limits how tightly you can seal it
- Radio, servos and receiver power remain a separate purchase
Verdict: the cheapest genuine gasoline boat on this list, and honest about it in the spec sheet.
Perfect for: a buyer who wants spark ignition without becoming a cooling-system technician.
Not sold on Amazon: available direct from the maker.
#5 Bonzi 54-Inch Fountain: Big Offshore Deep-V
| Spec | Detail |
|---|---|
| Hull | 54-inch Fountain-style fiberglass deep-V, optional carbon-fibre hull |
| Engine | Zenoah G260PUM, 25.4 cc, water-cooled |
| Drive | Bonzi clutch, CNC mounts, CZ drive |
| Exhaust | Stainless header, tuned pipe |
| Cooling | Water pump system |
| Included | Factory radio and servos advertised, receiver battery, charger, stand, fuel system |
| Option | Ignition-coil kill switch is selectable, not standard |
This is the pick for offshore styling rather than budget positioning, and it is the entry ticket to Bonzi's larger classes, where the catalog also lists a 51-inch Baja RTR and a 64-inch Fountain RTR on the same water-cooled Zenoah platform. A 54-inch deep-V does not just need a bigger lake, it needs a bigger legal lake: wind, wake and the space to turn matter more at this length, and a deep-V hull tracks differently from the cats above.
Pros:
- Largest deep-V in the recommended shortlist, on the reference Zenoah engine
- Complete Bonzi electronics package advertised
- Optional carbon-fibre hull for buyers chasing weight
Cons:
- 54 inches demands venue, transport and retrieval planning
- The ignition kill switch is an option you have to select
- Handling claims are Bonzi's own, with no published comparison behind them
Verdict: the large-water option, best bought once you know where you are legally allowed to run it.
Perfect for: offshore-style running on a large, permitted body of water.
Not sold on Amazon: available direct from the maker.
#6 Arrow Shark SX49 Deluxe X-30: Premium Composite Outboard Tunnel
| Spec | Detail |
|---|---|
| Hull | 49-inch carbon-fibre or Kevlar Formula One tunnel |
| Engine | Arrow Shark X-30 marine gasoline engine, nominal 30 cc |
| Propulsion | Formula-X outboard with integrated clutch |
| Propeller | AS7818/5 five-blade in the Deluxe package |
| Included | Formula-S outboard exhaust, mirror-style fuel tank, billet steering hardware, waterproof servo box, three metal-gear servos |
| Excluded | Transmitter and receiver |
| Product weight | Approximately 14 kg per the manufacturer |
No ABS here, and the outboard layout is the point: the whole drive pivots to vector thrust rather than relying on a rudder behind a fixed strut. Arrow Shark states plainly that its boat packages exclude the transmitter and receiver, offers an assembly service as a selectable extra, and may ship transom components detached for transit, which means final assembly is on you. The wider range includes the Predator XX60, Defender GT60, Marauder SV60, Black Diamond GX58, Specter DX58 and Vanquish LX55, plus the Pilot RX55, a 55-inch carbon and Kevlar waterjet boat with the same X-30 engine, a billet Ultra-Jet and a 50 mm impeller at roughly 14.5 kg. Note that these model names also exist in electric configurations, so specify the petrol SKU every time.
Pros:
- Composite hull and a genuine transom-mount outboard drive
- Three metal-gear servos and a waterproof servo box included
- Serious hardware: billet steering, mirror tank, integrated clutch
Cons:
- Transmitter and receiver are excluded, and the order is custom-build
- The proprietary X-30 carburettor and ignition are not Zenoah-interchangeable
- International shipping, customs and possible post-delivery reassembly
Verdict: a specialist purchase for builders who value the tunnel layout over a familiar parts bin.
Perfect for: an experienced gas boater who wants a composite tunnel and accepts a custom-order process.
Not sold on Amazon: available direct from the maker.
#7 Zippkits Super Sport Gas Mono: The Cheapest Hull Kit
| Spec | Detail |
|---|---|
| Hull | 46 × 12-inch shallow-V mono |
| Construction | Laser-cut birch plywood, builder assembled and sealed |
| Intended running weight | 11 to 13 lb per the vendor |
| Engine compatibility | Zenoah, Sikk, Venom and RCMK, typically 23 to 30 cc |
| Included | Laser-cut radio box components, predrilled engine rails, building documentation |
| Still needed | Engine, tuned pipe, mounts, flex shaft, strut, rudder, propeller, fuel system, servos, radio, receiver, battery, finishing supplies |
This is a wooden hull kit, not a ready-to-run boat, and the hull price is only the first slice of the total. The reward is a hull you can repair with a saw and epoxy instead of replacing, and a drivetrain you assembled yourself and therefore understand. Zippkits builds several of these, and the broader kit range shares hardware and documentation conventions, which shortens the second build considerably. What it is not is a shortcut to cheap gasoline boating. Add engine, hardware, pipe, radio and finishing and you have a full project.
Pros:
- Lowest-cost entry into a gasoline hull of any recommendation here
- Repairable wood construction and serviceable drivetrain access
- Takes the common 23 to 30 cc petrol engine families
Cons:
- Every part between the plywood and the water is a separate purchase
- The vendor's design dates to 2018, so treat it as an established kit, not a new release
- Vendor speed and rough-water figures remain manufacturer claims
Verdict: the right first gas build if you want to learn the drivetrain, the wrong one if you want to run next weekend.
Perfect for: a builder with bench space and patience.
Not sold on Amazon: available direct from the maker.
#8 Zippkits ProVee Race Hull: Serious Gas Mono Kit
| Spec | Detail |
|---|---|
| Hull | 48 × 13-inch gas racing V-hull |
| Construction | Laser-cut birch plywood |
| Claimed completed running weight | 12 to 14 lb |
| Engine compatibility | Zenoah 23 to 30 cc style marine installations |
| Included | Building jig, radio box with clear lid, servo mounts, documentation |
| Caution | A 31.8 cc Zenoah G320 installation needs modifications to rails, shaft tube and scoop |
The ProVee is the version for someone aiming at a class rather than a pond. It is prefitted and predrilled around Zippkits hardware, which is exactly why the displacement warning matters: a bigger engine is not a drop-in upgrade, and the manufacturer says so in writing. Treat the engine decision as part of the hull decision, not a later swap. Stock is limited.
Pros:
- Race-oriented V-hull geometry with a proper building jig and clear-lid radio box
- Hardware designed around a known component set
- Takes the widely available Zenoah 23 to 30 cc family
Cons:
- Explicit modification required for 31.8 cc engines
- Limited stock
- The design dates to 2015 and 2016, not a recent revision
Verdict: a kit for a racer or an experienced builder, and the honest answer to "can I just fit the biggest engine?"
Perfect for: a builder targeting a sanctioned gas mono class.
Not sold on Amazon: available direct from the maker.
#9 Zippkits SLR Missile Thunderboat: Sport-Hydro Kit
| Spec | Detail |
|---|---|
| Hull | 48 × 24-inch sport-hydro / thunderboat |
| Construction | Laser-cut wood with a supplied gel-coated fiberglass cowling |
| Intended running weight | 14 to 16 lb |
| Engine | Petrol compatible; a stock Zenoah 260 is required for the vendor-described Thunderboat racing configuration, subject to current class rules |
| Included | Building jig, radio-box kit, turn fin, manual |
| Still needed | Engine, running hardware package, tuned pipe, fuel equipment, radio, servos |
There is no factory-built gasoline hydroplane worth recommending, so this is how you get one. A hydro is also the hull class least forgiving of an unfinished setup: an under-trimmed sport hydro can blow over at speed, which is a recovery problem rather than a tuning annoyance. Read the hydroplane fundamentals before committing, and check class eligibility against the current IMPBA and NAMBA specifications rather than the historical product page text.
Pros:
- A genuine race-class hydroplane without pretending a ready-built petrol one exists
- Gel-coated cowling supplied, so you are not finishing every surface
- Complete jig, radio box kit and turn fin included
Cons:
- Hydroplane setup punishes impatience
- Engine, pipe, hardware and radio are all separate
- Check current class rules before racing
Verdict: the enthusiast's pick, and the one that most rewards a builder who reads the rulebook first.
Perfect for: builders chasing a specific racing class, not general pond running.
Not sold on Amazon: available direct from the maker.
The Engines: Zenoah G230RC, G260PUM, G300PUM and G320PUM Compared
Marine Zenoah engines are the clearest documented baseline in the category, and the PUM suffix is what marks a marine, water-cooled unit. Factory ratings and weights below are manufacturer figures, not measured outputs.
| Engine | Displacement | Bore × stroke | Cooling | Published output | Weight |
|---|---|---|---|---|---|
| Zenoah G231PUM | 22.5 cc | 32 × 28 mm | Water | 2.09 kW at 12,000 rpm | 1.55 kg |
| Zenoah G230RC | 22.5 cc | Not published | Air | 1.79 kW | 2.1 kg |
| Zenoah G260PUM | 25.4 cc | 34 × 28 mm | Water | 2.16 kW at 12,000 rpm, 1.91 Nm at 9,500 rpm | 1.54 kg |
| Zenoah G290PUM | 28.5 cc | 36 × 28 mm | Water | Stock output not published | 1.59 kg |
| Zenoah G290RC | 28.5 cc | 36 × 28 mm | Air | 2.0 kW | 2.1 kg |
| Zenoah G300PUM | 29.5 cc | 36 × 29 mm | Water | 2.60 kW | 1.6 kg |
| Zenoah G320PUM | 31.8 cc | 38 × 28 mm | Water | Stock output not published | 1.93 kg dry |
| Zenoah G320RC | 31.8 cc | 38 × 28 mm | Air | 2.40 kW | 2.3 kg |
| Arrow Shark X-30 | 30 cc class | 36 × 29 mm | Water | Vendor claim only | Listed as both 2.7 kg and 4 kg |
The G260PUM is the one to know. It is the engine in the Bonzi monos, Bonzi cats and the Enforcer water-cooled models, its displacement is 25.4 cc rather than a round 26, and it is the standard against which everything else in the category should be judged. The G300PUM is the step up at 29.5 cc for heavier monos or tuners, and it uses a Walbro WT-1048 carburettor instead of the WT-644 family on the smaller marine units. The G320PUM is the 31.8 cc big-block, and installing one is not a bolt-in decision: Zippkits warns in writing that its ProVee needs rail, shaft tube and scoop modifications to take it.
Buyers chasing used engines will meet the RCMK family from South Korea, historically a serious marine racing line with billet crankcases and four crankshaft bearings, and the Chinese Chung Yang clones. Neither comes with a current manufacturer stock position, and the clone market is broad enough that an aggregate "30cc clone" specification tells you nothing reliable about carburettor, crank drive or clutch. If you are inspecting a used boat, identify the actual engine before you price it, and check the cooling jacket, starter, ignition coil and exhaust manifold are all present.
Two practical notes that apply across the range. The Zenoah engine-only weights above exclude propeller, clutch, outdrive, cooling hoses, fuel, radio and the finished hull, so they say nothing about what the boat weighs. And a historical racing horsepower figure from a piped, modified engine is not comparable with a stock factory rating.
What You Still Need Before the First Launch
The parts nobody photographs are the parts that decide whether the session ends with a run or a repair. Zippkits sells a Gas Mono Ultimate Hardware Combo that shows the scope: engine mounts, a Super collet, a 1/4 × 24-inch flex shaft, adjustable stinger drive, rudder and water pickups, drive dog, 7016/3 propeller, fuel cell, engine header, Super Tuned Quiet Pipe, pushrods, fittings, exhaust flange, steering hardware and plumbing. If you are building any of the kits above, that list is your shopping list.
Propellers deserve their own paragraph. Zenoah's marine manual gives a broad working reference of 65 to 75 mm surface-propeller diameter with a pitch-to-diameter ratio of roughly 1.4 to 1.9, and Bonzi recommends Prather 270/2, Octura 1667/2, Bonzi SP27/2 or Prop Shop 7015 and 7016 options depending on hull and engine. Zippkits specifies a 7016/3 in its gas mono bundle and 7016/3 or 6717/3 for its gas tunnel. Two traps: a propeller fits only if shaft bore, drive dog, handedness and hub clearance all match, and over-propping an engine costs you RPM, launch and mechanical life. Propeller sizing is a load calculation, not a bragging right.
Fuel mixing is arithmetic worth doing right. Zenoah's marine manual specifies a 25:1 to 40:1 gasoline-to-oil range using a high-grade two-stroke oil.
| Ratio | Two-stroke oil per 1 US gallon of gasoline |
|---|---|
| 25:1 | 5.12 US fl oz |
| 32:1 | 4.00 US fl oz |
| 40:1 | 3.20 US fl oz |
Use a properly labelled premix container, and never put nitro or methanol racing fuel in a gasoline engine. A recoil starter that resists your shoulder is worth replacing rather than fighting: the Zippkits Easy Starter is a spring-assisted replacement listed as compatible with Zenoah, RCMK, CY, Sikk and Venom engines, though it will not convert a belt-start-only engine into a recoil one. The rest of the kit is unglamorous and non-negotiable: petrol-compatible tank, vent, tubing and filter, receiver power pack and switch, radio-box seal material, flex-shaft grease, spare collet and shaft, and spare spark plugs. The after-run routine for a gas boat is the same discipline a brushless boat needs, with a carburettor and an ignition system added to the list.
Gas Boat Hull Classes, Sizes and the Rules That Limit Them
Hull length ranges below are planning guides drawn from current gas models, not mandatory class specifications.
| Hull class | Gas examples | Working length | Why gas suits it |
|---|---|---|---|
| Mono / shallow-V | Zippkits Super Sport, ProVee, Enforcer Team Enforcer | 44 to 50 in | Traditional racing setups and mechanical serviceability |
| Deep-V offshore | Bonzi Fountain, Enforcer Magnum | 50 to 64 in and up | Large hulls, open-water running, long fuel-burning sessions |
| Catamaran | Bonzi 47 Skater, Enforcer Split-N-Image, Arrow Shark GX58 | 47 to 60 in | Big cats and specialist drive layouts |
| Sport hydro / thunderboat | Zippkits SLR Missile, Insane Synergy | 47 to 49 in | Established petrol racing classes |
| Rigger / outrigger | Zippkits RG, Insane G6 | 41 to 49 in | Lightweight specialist racing |
| Gas tunnel / outboard | Zippkits G48, Arrow Shark SX49 | 48 to 49 in | Large-scale tunnel and outboard racing |
Construction is not uniform either. Enforcer, Bonzi and Insane build in fiberglass, Zippkits in laser-cut wood, and Arrow Shark in carbon and Kevlar composites. If you assumed a gas boat means a moulded plastic hull, that assumption does not survive contact with this shortlist.
Racing has limits that recreational buyers should still read. IMPBA's technical standards set a general sanctioned-event maximum of 60 inches and 30 lb including fuel, so a 64-inch or 84-inch recreational hull is not automatically legal for IMPBA competition, and class-specific exceptions require checking. Sanctioned racing also runs to a 92 dBA maximum, measured with A-weighting and fast response at a prescribed shoreline position. That is a competition limit, not a description of what your boat sounds like on a Sunday.
Availability is the other sobering column. Insane Boats' Synergy Sport Hydro ARTR, a 47.5 × 23-inch fiberglass hydro, and its 49-inch G6 Rigger RTR are both listed out of stock, as are its 48 Mono Gen 3 and G3X Cat hulls. Zippkits' 2025-redesigned RG Gas Outrigger, a 41 × 25.5-inch rigger with a 10.5 to 12-lb intended running weight, and its 48 × 18.25-inch G48 Gas Tunnel are both out of stock as well. Those are worth watching, not ordering today, and for a deeper look at that hull class the outrigger guide covers the layout.
Comparison Table
| Boat | Hull class | Length | Engine | What the package includes | What you still buy |
|---|---|---|---|---|---|
| Bonzi 50-Inch RTR | Mono | 50 in | Zenoah G260PUM 25.4 cc | Radio, servos, receiver pack, charger, tank, stand | Fuel and oil |
| Enforcer Team Enforcer 46 | Mono | 46 in | Zenoah G260PUM 25.4 cc | Hull, engine, drive, wet exhaust, cooling, tank | Radio package, fuel, oil |
| Bonzi 47 Skater Cat | Catamaran | 47 in | Zenoah G260PUM 25.4 cc | Radio, servos, receiver pack, drive, exhaust | Fuel, oil, propeller check |
| Enforcer Super G | Mono | Not published | Zenoah G230RC 22.5 cc air-cooled | Hull, engine, clutch drivetrain | Radio package, fuel, oil |
| Bonzi 54 Fountain | Deep-V | 54 in | Zenoah G260PUM 25.4 cc | Radio, servos, receiver pack, charger, stand, fuel system | Fuel, oil, kill switch |
| Arrow Shark SX49 X-30 | Tunnel / outboard | 49 in | Arrow Shark X-30, 30 cc class | Hull, engine, outboard, exhaust, three servos, hardware | Transmitter and receiver, fuel, reassembly |
| Zippkits Super Sport | Shallow-V mono | 46 in | Your choice, 23 to 30 cc | Hull kit, radio box parts, engine rails, documentation | Everything else |
| Zippkits ProVee | Racing V mono | 48 in | Your choice, 23 to 30 cc | Hull kit, jig, radio box, servo mounts, documentation | Everything else |
| Zippkits SLR Missile | Sport hydro | 48 in | Zenoah 260 for the class | Hull kit, cowling, jig, radio box kit, turn fin | Engine, hardware, pipe, radio |
Which Gas-Powered RC Boat Should You Buy?
If you want to run this weekend. Buy the Bonzi 50-Inch RTR. Radio, servos and receiver pack are in the package, and the G260PUM is the engine with the best spares trail in the sport.
If you want a mono and already own a radio. The Enforcer Team Enforcer 46 gives you the classic water-cooled gas mono with dual rudders and adjustable tabs, and you skip paying twice for radio gear. Same reasoning if you prefer a cat: the Enforcer Split-N-Image Cat, or the Bonzi 47 Skater if you want the radio included.
If a cooling circuit sounds like a chore you would rather skip. The Enforcer Super G runs the air-cooled G230RC. You give up output against the marine 260s and take on airflow management instead of plumbing.
If you have serious water and a serious budget. The Bonzi 54 Fountain or the Arrow Shark SX49 Deluxe X-30. The Fountain is the biggest deep-V here; the Arrow Shark is a composite tunnel with an outboard drive and no transmitter in the box.
If you would rather build than buy. Start with the Zippkits Super Sport if you want to learn the drivetrain cheaply, the ProVee if you are heading for a class, and the SLR Missile if you specifically want a hydroplane. Pair any of them with a Zenoah G260PUM, the hardware combo and patience.
If you are shopping used. Identify the engine first. A "26cc Zenoah" may be a 25.4 cc G260PUM, a 22.5 cc G231PUM or an air-cooled car engine, and the difference decides what spares you can buy. An RCMK or clone engine in a used hull is fine if it runs, but price it as a used-market engine with uncertain parts support, not as a modern equivalent.
One question to answer before any of that: where are you allowed to run it?
Frequently Asked Questions
Q: Do gas RC boats run on regular pump gasoline?
The fuel is gasoline premixed with two-stroke oil, but the exact specification belongs to the engine and seller. Zenoah's marine manual specifies gasoline rated over 90 octane without saying whether that is the US AKI pump rating, so treat it as a manufacturer guideline rather than a pump-label instruction. A Bonzi retail listing for the G300 recommends 89-octane US pump gasoline at 25:1. Nitro or methanol racing fuel has no place in any of these engines.
Q: Does a new Zenoah engine need a break-in period?
The original Zenoah marine manual states that no special engine break-in is required. It suggests using roughly the first third of a tank at low RPM and the remaining two-thirds at medium to high RPM, which functions as a check of the entire installed boat and cooling system. Freshly modified cylinders, aftermarket pistons and engine-builder warranties may specify their own procedures, and those instructions override the general guidance.
Q: Is a 26cc gas RC boat engine really 26cc?
No. The Zenoah G260PUM displaces 25.4 cc with a 34 × 28 mm bore and stroke, so "26cc" is a rounded model-class label rather than an exact figure. The same applies up the range: the G300PUM is 29.5 cc at 36 × 29 mm and the G320PUM is 31.8 cc at 38 × 28 mm. When you buy rings, pistons or a cylinder, quote the exact model rather than the class number.
Q: Can you run a gas RC boat on a public lake?
It depends entirely on the water's managing authority, and the answer is frequently no. King County in Washington explicitly prohibits operating internal-combustion models, including radio-controlled gasoline-powered model boats, on Lake Twelve and Lake Langlois under its code. Sanctioned racing elsewhere runs to a numerical limit, a 92 dBA maximum measured at a prescribed shoreline position. Check the park rules, the county or city code, any local club's standing and the local noise ordinance before you buy the boat, not after.
Conclusion
Gasoline RC boating is a specialist's market, and the honest version of this round-up separates complete boats from kits instead of pretending ten identical petrol RTRs exist. If you want a running gasoline boat with the least remaining work, the Bonzi 50-Inch RTR is the most complete package available, radio and receiver pack included, on the Zenoah G260PUM that anchors the whole category. The Enforcer Team Enforcer 46 is the traditional water-cooled mono, with the radio as a separate selection, and the Enforcer Super G is the cheapest genuine spark-ignition entry if you would rather not manage a cooling circuit.
On the build side, the Zippkits wooden hulls are the honest answer to a low kit price: you get a repairable hull and a drivetrain you understand, and you buy the engine, hardware, pipe, radio and finish separately. Whichever route you take, plan the engine around the hull rather than the other way round, fit an ignition kill switch alongside the receiver failsafe, and confirm the venue before the boat.
If you are still choosing a power system rather than a specific hull, the wider comparison between electric, gas and nitro covers noise, venue access, maintenance and running cost side by side. For driveline work on any of these builds, see the guide to flex shafts and running hardware, and for setup once the boat is wet, the tuning guide covers strut, tab and propeller adjustments in sequence.
