So, why a 4 stroke???
  1. 4 stroke engines are inherently more reliable than 2 strokes. This allows you to fly with greater confidence in the knowledge that your journey will not be cut short.
  2. 2 strokes, unavoidably allow a great proportion of un burnt fuel to escape into the exhaust. This greatly reduces efficiency and adds to environmental pollution.
  3. 4 strokes produce their peak power lower down the rpm range than 2 strokes and as a result produce less engine noise.
  4. A typical 4 stroke will be heavier than an equivalently powered 2 stroke but we believe the other benefits of the 4 stroke make this issue only a minor down-side.
  5. There is no pre-mixing of fuel and oil required with a 4 stroke and neither is there the need to tweak the carb for smooth running prior to every flight.
  6. Generally, 2 stroke engines are cheaper than 4 strokes. Primarily this is because they are of a much simpler design. Our modified industrial 4 stroke engines are actual cheaper than many other 4 strokes and the majority of 2 stroke engines.
The engine modifications and propellor fitment should be well within the realms of anybody with a half decent workshop/garage set up. No special or expensive tools required either. I can however supply at a reasonable cost to you, a throttle unit and/or a complete chassis if you don't think your skills are up to it or you don't have access to welding equipment. This offer is currently under review. Check our shop page for more details of what is available.
2 stroke / 4 stroke comparison
What's it all about???
engine image
The principal aim that underlined the 'Eggmotor' development was the need for a simple, reliable and above all, affordable paramotor. You can use an industrial engine that is designed for dirty building sites and horrendous abuse and then transform it into an engine that makes your homebuilt eggmotor quite possibly the only 'no nonsense' paramotor available. Fulfill your ambitions, build one and take flight, there was never a better time.
Can I do it?...
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Bailey - Egg kits now available from Bailey Aviation. Extensive research and development by Paul Bailey has resulted in 5 bespoke kits now available to transform a humble GX200 into a viable 4 stroke paramotor engine. Click the image below for more information.

Please Note: I will not accept responsibility for the quality of your own creation, nor for it’s use. You, as the builder/pilot are solely responsible for your own actions regarding the construction and use of any machine built and/or flown with the aid of information gathered from this web site.

Engine: Pull-Start 196cc 4-stroke petrol.

Power: approx. 14hp. (18hp possible)

Thrust: upto 40kg. (upto 47kg with 18hp engine)

Engine Weight: approx. 15kg.

Total Weight: 19kg - 22kg. (Dry)

Max. Pilot Weight: 75kg. (95kg with 18hp)

Propellor: 34" X 10" laminated wood.

Chassis: 20mm - 25mm steel tubing.

Endurance: Upto 2 hours. (Cruising)

Climb Rate: 80 - 110fpm. (90kg pilot - 40kg thrust)

Harness: APCO paramotor type works best.

Typical Motor Specification...
Sam with the prototype
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EggMonster blog updated.
click image to go to Bailey Aviation Egg kits page