Nucleon 4

Nucleon 4


Nucleon 4

The Nucleon 4 is a classic paramotor wing. It is characterized by a solid reflex, very easy launch, pleasant steering, good economy and maneuverability ideally suited to the line of recreational, cruise and sports wings.

Nucleon 4






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Design and purpose

Nucleon 4 derives directly from the first reflex constructions that appeared in the world – Traper, Action, then ReAction. This pedigree was continued in several incarnations of the Nucleon, up to the current – fourth generation.

We focused in particular on combining the Nucleon WRC’s lateral stability with the agility and pleasant handling of the Nucleon XX. We also added the uncompromising stability of Reportair. Moreover, we managed to increase speed, load capacity, and make the Nucleon 4 lighter than all its predecessors.

Nucleon 4 was designed for intermediate pilots who have already solidly mastered the art of reflex wing flying and are familiar with their specific features. One of them is unique resistance to turbulence, and the only requirement for this legendary reflex safety is to ‘speed up’, meaning the release of trimmers and brakes with an optional pressing the speedbar, which can be used in any trimmer configuration.

A very easy launch, comfortable steering and a pleasant flare at landing are standard in our designs, but in the Nucleon 4 it has been even increased. We improved the flight economy as well.

The spectrum of operation is wide, from recreational and cross-country flying to classic paramotor competitions.

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Design and structure

In the Nucleon 4 we used a new aerodynamic profile. The structure includes Flexi Edge (FET) technology, which ensures better aerodynamics and stiffness of the leading edge. Additionally, we use double reinforcements (LE2R) between the cells. Stiffening cores and other reinforcements together with the specific shape of the leading edge (shark nose) make sure that high pressure inside the wing is maintained over the full speed range.

Improved risers mechanisms make them intuitive to use, allow you to use the speed system in the entire range of trimmers, comfortably correct the flight direction with the 2D / TST system and compensate the spinning effect with the automatic TEA system.

Properly selected progression of the alternative 2D control system allows you to steer the wing reliably and effortlessly, which is especially important at higher flight speeds.

Nucleon 4 does not have a Power Attack system, nor is it possible to mount it.

Design solutions, technologies and other functionalities are listed below in the Technologies section.

Construction solutions

Technologies, concepts

DRA - Dudek Reflex Airfoil

DRA – Dudek Reflex Airfoil -applied in PPG wings fully autostabilised arofoil, based on long years of research and experience. In our variant we managed to get rid of typical flaws associated with these aerofoils.

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SN - Shark-nose

Airtakes designed and executed in Shark-nose technology meaning specific, concave shape of the reinforced profile area at its leading edge (the name comes form the very shape, reminding shark’s nose).

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CSG - Canopy Shape Guard

CSG – Canopy Shape Guard – is our unique system controlling canopy coherence. It is because of this system that our wings are equally tensioned, smooth, stable and… simply remarkable.

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LR - Laser Technology

Capabilities of the laser cutter allow for serial cutting of complicated shape narrow elements in large numbers, their optimal placing in relation to structure of the textile and highest possible precision of cut.

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FET - Flexi Edge Technology

The leading edge is closed to the airflow, and its precise shape is kept with laminated cloth reinforcements, incorporating synthetic rods. The rods make the leading edge stiffer and smoother, bringing improvements in many areas – from easier inflation, through stiffening the canopy in flight to improved general airflow.

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LE2R - Leading Edge Double Reinforcements

Leading Edge Double Reinforcements are additional reinforcements between the cells, which stiffen the leading edge and keep the profile ‘clean’ during the flight at full speed.

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ACS - Auto Cleaning Slots

Dedicated slots automatically removing dirt from the wing tips.

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Risers functionality

Used solutions

TR - Trimmers

A trimming system for additional angle of attack regulation. Used mainly in PPG wings.
This system features replaceable trim straps. After prolonged or intensive operation they need to be replaced, as they get damaged by buckle edges.

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SS - Speed System

A system of lines and pulleys sewn to the appropriate straps, connected to the bar hanging under the harness. It enables smooth adjustment of the angle of attack during the flight.

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2D - Steering System

2D system is generally similar to the classic one – pilot has but two main steering handles to steer. However, it’s operation is significantly different.  Due to division of main steering lines (there are two for each side now, with one of them going outside of the pulley), an experienced pilot can modify steering progression according to his own preferences.

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TST - Tip Steering Toggles

Our original idea, featuring additional miniature handles that steer the stabilizers. It is a great improvement on long flights, when opened trimmers and full speedbar make steering much harder.

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TEA - Torque Effect Adjuster

The task of this feature is to counteract the effect of engine torque, that tends to make the paraglider turn in the direction opposite to the propeller’s rotation.


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ELR - Easy Launch Riser

Split ‘A’ riser makes for easier launch and ‘big ears’.

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EK - Easy Keeper

Indigenous way to hold the brake handles at the risers that keeps them firmly in place, while both attaching and releasing goes smoothly and easily. Used in most of our handles (TCT, ACT, SCT).

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TCT - Triple Comfort Toggle

An easy conversion from hard through medium to soft brake handles. Equippped with a swivel adn Easy Keeper.
Available standard (bigger) and short (smaller) versions.

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Weight ranges


Size 18 20 22 24 26 28
Approval – ULM identification
Number of cells 60
Surface area (flat) [m2] 18.00 20.00 22.00 24.00 26.00 28.00
Surface area (projected) [m2] 15.29 16.99 18.68 20.38 22.08 23.78
Span (flat) [m] 10.04 10.58 11.10 11.59 12.07 12.52
Span (projected) [m] 7.93 8.36 8.77 9.15 9.53 9.89
Aspect Ratio (flat) 5,60
Aspect Ratio (projected) 4,11
Speed* [km/h] min = 28 ; trim = 42-53 ; max = 67 (+/- 3 km/h)*
Longest chord [mm] 2210 2330 2443 2552 2656 2756
Schortest chord [mm] 525 581 610 637 663 688
Distance pilot to wing [m] 6.02 6.35 6.66 6.96 7.24 7.52
Total line lenght [m] 272.90 288.30 302.95 316.95 330.37 343.29
Total take-off weight** [kg] 70-100** 80-110** 90-120** 100-130** 105-140** 115-150**
Max take-off weight – for experienced [kg]*** 110*** 125*** 135*** 150*** 160*** 175***
Distance betwen risers [cm] 45 45 45 45 45 45
Weight [kg] 4.82  5.13 5.51 5.82  6.24 6.63
Lines Edelrid A-8000U: 050; 090 / Technora: 90; 140; 190; 280; 340 / Dyneema: 350
Fabric [g/m2] Porcher Classic 38 g/m2, Dominico tex 34 g/m2, Porcher Hard 40 g/m2, SR Scrim, SR Laminate 180 g/m2

* Speeds are given as estimated for the middle wing size and the middle of its weight range. These speeds can vary within +/- 3 km / h depending on the size, take-off weight and additional factors such as air pressure and temperature.

** The basic rule is to choose the size of the wing so that the take-off weight is in the middle of the weight range. Less weight on the wing (lower range take-off weight) can be considered for foot take-off, when flying in calmer conditions, or when we want to improve economy. More experienced pilots who want to fly dynamically, have higher speed and fly in more demanding wind conditions can consider greater wing loading (take-off weight in the upper range). This is a common option among trike users.

*** Note – the canopy significantly changes its behavior with increasing wing loading. The greater the loads, the greater skill and concentration of the pilot are  required.

Joerg Maass (D-MAAS)

PPG foot launch pilot. Freelancer and test pilot for German PARAMOTOR magazine.

Very easy take off. very good roll and pitch damping. Huge brake range, also very good & easy landing.

I think the Nucleon 4 is a good successor in the original “Nucleon” brand idea of a stable, performing XC-glider with a modern take-off and maneuverability behaviour and a convincing performance, also in higher speeds.