KP35

Your First Real Jet Engine Build

KP35

KP35 is a stationary scientific model jet engine. It is your cost effective way to the world of jet propulsion! Crafted for DIYers, mechanics aficionados, aviation enthusiasts, and educational institutions, it is designed specifically for those who want to understand the fundamentals of jet propulsion through the experience of building their own working engine.

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What You'll Learn

  • Aerospace Principles

    Understand the fundamental concepts that power modern jet engines through hands-on experience.

    ✅ Thermodynamic cycles
    ✅ Compressor theory
    ✅ Combustion dynamics
    ✅ Turbine efficiency
    ✅ Thrust generation

  • Technical Skills

    Develop practical engineering skills that apply across multiple disciplines.

    ✅ Precision measurement
    ✅ Material properties
    ✅ Fabrication techniques
    ✅ Assembly procedures
    ✅ Testing methodologies

  • Real-World Applications

    Connect your learning to professional aerospace concepts and career paths.

    ✅ Propulsion engineering
    ✅ Aerospace design
    ✅ Performance optimization
    ✅ Systems integration
    ✅ Safety protocols

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Your Building Journey

  • Estimated Time Commitment

    KP35 typically requires 10-15 hours to complete, spread over 8-12 weeks for most builders. The pace is flexible and can be adjusted to your schedule and experience level.

  • Skill Development

    As you progress through the build, you'll develop increasingly advanced skills. Each stage builds upon previous knowledge, creating a comprehensive learning experience.

  • Support Resources

    Throughout your journey, you'll have access to detailed instructions, video tutorials, our active community forum, and direct technical support from our team.
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Technical Specifications

General

  • Engine Type: Single-stage centrifugal turbojet
  • Fuel Type: Kerosene or Jet A
  • Lubricant: Turbine oil 3%-5%
  • Starting System: External air compressor

Performance

  • Maximum Thrust: 2.5 lbs / 1.1 Kg / 10.7 N
  • Idle RPM: 180,000 RPM
  • Maximum RPM 220,000 RPM
  • Exhaust Gas Temperature: 950°F / 550°C
  • Fuel Consumption: 4 oz/min / 118 ml/min at full throttle
  • Running time: Max 10 minutes

Physical

  • Weight: 2.5 lbs / 1.134 kg
  • Length: 5.5" / 139 mm
  • Diameter: 3" 79 mm

Deliverables

Kit Content:

  • Precision-machined compressor Turbine wheel assembly
  • Combustion chamber Stainless steel sheet
  • Drilling pattern for combustion chamber
  • High-temperature ceramic bearings
  • Shaft housing components
  • Fuel system components
  • Comprehensive build guide
  • Educational materials and theory guide

Build guide

KP35 Build Guide

Community:

  • 1 month subscription included

Not included:

  • M3 Screws

Required tools (Not included):

  • Safety equipment (gloves, eye protection)
  • Philips screwdriver
  • Drill and drill bits
  • Electric Spot welder (for combustion chamber)
  • Bench vise
  • Small files and deburring tools
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FAQ

What maintenance does the KP35 require?

Regular maintenance includes:

  • Visual inspection before each use
  • Cleaning of the fuel filter every 10 operating hours
  • Inspection of all fuel lines and connections monthly
  • Lubrication of bearings according to the schedule in the user manual
  • Annual inspection of the turbine blades and combustion chamber

Is the KP35 suitable for classroom demonstrations?

KP35 was designed with educational settings in mind. It can be built indoor but we don't recommend soldering or operating it in a classroom setting.

Operating a jet engine requires:

  • Adequate ventilation
  • Proper safety barriers
  • Hearing protection for observers
  • Adherence to safety protocols
  • Adult supervision and proper training for the operator

Please refer to the safety notice for more safety recommendations

Can children operate the KP35?

No. The KP35 is not a toy and should only be operated by adults with
proper training and understanding of the safety protocols. Children may
observe demonstrations under close adult supervision while maintaining a
safe distance from the unit.

The engine starts but then shuts down. What might be causing this?

This could be caused by:

  • Fuel supply issues or contaminated fuel
  • Overheating due to blocked air intake
  • Bearing issues causing RPM fluctuations

You can always reach out to get guidance

Do I have to be subscribed to the community to access learning resources ?

Yes. Learning resources are available exclusively through the community. You get 2 months free subscription with the purchase of your engine

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KP35

KP35

£319.00 GBP
£319.00 GBP
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Safety Warning

  • High temperature

    • Never operate near flammable items
    • Never stay behind the engine exhaust
    • Always keep a fire extinguisher close

  • Toxic Exhaust gases

    • Never operated indoor
    • Never stay close to the engine exhaust
    • Always operate in well ventilated areas

  • High speed rotation

    • Never put any object inside a running engine
    • Never touch the internal parts of a running engine with your bare hands

  • Heavy product

    • Always secure the engine and parts
    • Always take safety when handling the engine and engine parts
Read the safety notice