Best Jet Engine Model Kits
A jet engine model shows something a photograph cannot: the fan, the compressor stages, the combustor and the turbine all turning together on their shafts. These are the jet engine kits worth building, from a $40 LED turbofan to all-metal twin-spool engines, plus one small jet that genuinely burns fuel. Every specification is checked against the retailers that sell them.
Quick Comparison
Jump to the product that fits your needs
| # | Product | Rating | Pieces | Power | |
|---|---|---|---|---|---|
| #1 | TECHING DM119 Twin-Spool TurbofanBest Overall | 1000 | 3.7V battery (USB) | See details ↓ | |
| #2 | TECHING DM135 Fighter TurbofanBest Fighter Engine | 600 | Battery or mains | See details ↓ | |
| #3 | TECHING T700 Turboshaft (DM136)Best Turboshaft | 470 | 3.7V battery (USB) | See details ↓ | |
| #4 | TECHING DM121 1/12 Cutaway TurbofanBest Mid-Price Metal Kit | 300 | 3.7V battery | See details ↓ | |
| #5 | TECHING DM122 Mini Cutaway TurbofanBest First Metal Kit | 170 | 3.7V battery | See details ↓ | |
| #6 | SKYMECHMAN Trent 900 LED Turbofan KitCheapest | — | AA batteries or rechargeable | See details ↓ | |
| #7 | SKYMECHMAN WP-85 Turbojet KitBest Turbojet | 100 | 12V motor | See details ↓ | |
| #8 | Micro Valved Pulse Jet Engine (Gasoline)A Real Jet That Burns Fuel | — | Gasoline | See details ↓ |
TECHING DM119 Twin-Spool Turbofan
TECHING DM135 Fighter Turbofan
TECHING T700 Turboshaft (DM136)
TECHING DM121 1/12 Cutaway Turbofan
TECHING DM122 Mini Cutaway Turbofan
SKYMECHMAN Trent 900 LED Turbofan Kit
SKYMECHMAN WP-85 Turbojet Kit
Micro Valved Pulse Jet Engine (Gasoline)
The Kits Side by Side
| Kit | Engine type | Material | Parts | Scale | Build time | Price |
|---|---|---|---|---|---|---|
| TECHING DM119 | Twin-spool turbofan | Metal | 1,000+ | 1/10 | ~10 h | $999 |
| TECHING DM135 | Fighter turbofan | Metal | 600+ | 1/10 | ~5 h | $799 |
| TECHING T700 | Turboshaft | Metal | 470+ | 1/10 | ~4 h | $499 |
| TECHING DM121 | Dual-spool turbofan, cutaway | Metal | 300+ | 1/12 | 2 h+ | $399 |
| TECHING DM122 | Turbofan, cutaway | Metal and plastic | 170+ | 1/14 | ~2 h | $149 |
| Trent 900 LED | Airliner turbofan | ABS, 3D-printed | — | — | — | $39 |
| WP-85 | Turbojet | 3D-printed resin | 100+ | — | — | $249 |
| Pulse jet | Real pulse jet | Steel and aluminium | — | — | Ready to run | $139 |
Specifications come from the product data of Stirlingkit, checked on September 29, 2026. A dash means the retailer does not state it.
Turbofan, Turbojet or Turboshaft
The kits here cover the main kinds of gas turbine:
- Turbofan (the TECHING DM119, DM135, DM121, DM122 and the Trent 900): a large fan at the front pushes most of the air around the core rather than through it. It is the engine of every modern airliner.
- Turbojet (the WP-85): all the air goes through the core, and all the thrust comes from the hot exhaust. The simplest layout, and the one to build if you want to see the basic cycle clearly.
- Turboshaft (the T700): the turbine drives an output shaft, for a helicopter rotor, instead of producing thrust.
"Twin-spool" and "dual-spool" mean the low-pressure and high-pressure sections turn on separate shafts at different speeds, as they do in real engines. Our guide to turbojets vs turbofans explains the differences, with a diagram.
What "Working" Means on These Kits
All the model kits here are driven by an electric motor: the fan, compressor and turbine stages turn, but nothing burns. The retailers' run times per charge range from about 30 minutes for the DM135, DM121 and T700 to about an hour for the DM119.
The pulse jet is the exception. It is a real combustion engine with no turbine at all, closer to the V-1's engine than to an airliner's, and it needs petrol, an open outdoor space and hearing protection.
Choosing a Jet Engine Kit
- The most detailed build: the TECHING DM119, about 10 hours.
- A first metal jet engine: the TECHING DM122 at $149, rated the easiest.
- A mid-price metal turbofan: the DM121 at $399.
- A helicopter engine: the T700 turboshaft.
- The cheapest turbofan: the Trent 900 LED kit at $39.
- A turbojet: the WP-85.
- A jet that actually burns fuel: the pulse jet, outdoors only.
What We Could Not Verify
We have not built every kit here. The specifications come from the retailers' product data:
- Build times and run times are the retailers' figures.
- The Trent 900 and WP-85 listings do not give a scale or build time.
- The pulse jet's thrust and fuel consumption are not stated in its listing.
What Changed in This Update
September 29, 2026: re-checked every kit. Two cards did not match their links: the "TR900 display model, no assembly required" link leads to TECHING's DM122 mini turbofan kit, and the "WS-J35 fighter turbine" link to TECHING's DM135 fighter turbofan kit; both cards now describe the actual products. The reference to a Smithsonian kit that was not on the page is gone. Added the DM121, the Trent 900 LED kit, the WP-85 turbojet and the pulse jet.
Detailed Reviews
TECHING DM119 Twin-Spool Turbofan
The most detailed jet engine kit here: a 1/10-scale twin-spool turbofan in aluminium alloy and stainless steel with a first-stage fan, two-stage low-pressure and four-stage high-pressure compressors, and high- and low-pressure turbines. 1,000+ parts, of which some 600 are screws and nuts, and about 10 hours to build. It runs for about an hour per charge.
Key Features
- 1,000+ parts, 1/10 scale
- Twin-spool: separate low- and high-pressure spools
- About 10 hours to build
- 3.7V 800 mAh battery, about 1 hour per charge
- Rated 14+
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TECHING DM135 Fighter Turbofan
A 1/10-scale turbofan styled after a military fighter engine of the F-35 class, in aluminium alloy and stainless steel. 600+ parts, about five hours to build, and a big finished model at 45 × 13 × 19 cm and 6.2 kg. It runs from two 3.7V batteries for about 30 minutes, or from mains power.
Key Features
- 600+ parts, 1/10 scale
- Military fighter turbofan styling
- About 5 hours to build
- Two 3.7V batteries, about 30 minutes; or mains
- 45 × 13 × 19 cm, 6.2 kg
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TECHING T700 Turboshaft (DM136)
A 1/10-scale model of the T700, the turboshaft engine family used in the Black Hawk helicopter. Instead of producing thrust, a turboshaft's turbine drives an output shaft, and this model shows that layout in aluminium alloy and stainless steel. 470+ parts, about four hours to build, and about 30 minutes per charge.
Key Features
- 470+ parts, 1/10 scale
- T700 helicopter turboshaft layout
- About 4 hours to build
- 3.7V 800 mAh battery, about 30 minutes
- 29.2 × 11.9 × 19.8 cm, 3 kg
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TECHING DM121 1/12 Cutaway Turbofan
A dual-spool turbofan at 1/12 scale in aluminium and zinc alloy, cut away so you can see inside. With 300+ parts and a two-hour-plus build it is the way into TECHING's metal jet engines for less than half the price of the DM119. Runs about 30 minutes per charge.
Key Features
- 300+ parts, 1/12 scale
- Dual-spool cutaway turbofan
- 2+ hours to build, 3 of 5 difficulty
- 3.7V 800 mAh battery, about 30 minutes
- 31.2 × 16.7 × 18.8 cm, 2.8 kg
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TECHING DM122 Mini Cutaway Turbofan
TECHING's smallest turbofan: a 1/14-scale cutaway in aluminium, zinc alloy and engineering plastic with 170+ parts. Rated one out of five for difficulty and about two hours to build, it is the easiest metal jet engine here and the cheapest metal one that runs.
Key Features
- 170+ parts, 1/14 scale
- Cutaway turbofan
- About 2 hours to build, 1 of 5 difficulty
- 3.7V 800 mAh battery
- 18 × 7.7 × 11.2 cm, 560 g
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SKYMECHMAN Trent 900 LED Turbofan Kit
A kit of the Rolls-Royce Trent 900 airliner turbofan in ABS and 3D-printed parts, with LED lighting. The cheapest turbofan here at $39 for the AA-battery version, or $49 for the rechargeable one, which runs more than 20 minutes on a charge.
Key Features
- Trent 900 airliner turbofan
- ABS and 3D-printed parts
- LED lighting
- AA ($39) or rechargeable ($49) version
- 27 × 12 × 14 cm
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SKYMECHMAN WP-85 Turbojet Kit
A 3D-printed kit of a turbojet, the simpler jet with a single air path and no bypass fan, in resin plastic with 100+ parts and a 12V motor. At 36 cm long it is the one turbojet here, and it makes the difference from the turbofans easy to see side by side.
Key Features
- Turbojet layout, no bypass fan
- 100+ parts, 3D-printed resin
- 12V DC motor
- 36 × 12 × 14 cm
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Micro Valved Pulse Jet Engine (Gasoline)
Not a model of a jet engine but a small real one: a valved pulse jet in carbon steel and aluminium that runs on petrol, started with an electronic igniter. It has no turbine or compressor; valves at the front open and shut as the combustion pulses. It is loud, hot and hazardous, and the retailer warns that it is hard to start below 7 °C.
Key Features
- Real combustion: valved pulse jet
- Runs on gasoline
- Electronic ignition starter
- Carbon steel and aluminium, 35 cm long
- Rated 16+; outdoor use only
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Related Guides
Turbojet vs Turbofan: What the Difference Means for Model Kits
Turbojet, turbofan, turboshaft and twin-spool explained — what bypass ratio actually is, why airliners and fighters use different engines, and what 'working' really means on a model jet engine you can buy.
Discovery MindBlown Model Engine Kit: What's in the Box and the Alternatives
What the Discovery MindBlown model engine kit actually contains, part by part, what each part does in a real engine, and four alternatives if your builder is older or wants more. Checked October 2026.
Model Diesel Engines: Kits and a Real Running Diesel
Five model diesel engines compared, from an $89 resin engine for RC crawlers to TECHING's metal inline-four kit and the RETROL D16, a 16cc diesel that really runs on compression ignition. Checked October 2026.
Our top pick
TECHING DM119 Twin-Spool Turbofan