Hui Yang ATOM F3A Biplane – Christophe Paysant-Le Roux (CPLR)
The Hui Yang ATOM F3A Biplane, designed by multiple F3A World Champion Christophe Paysant-Le Roux (CPLR), is a full-size 2 metre competition aircraft manufactured by Hui Yang Professional F3A.
Developed for the demands of modern precision aerobatics, the ATOM combines CPLR’s extensive F3A aircraft design and competition experience with Hui Yang’s lightweight composite construction and exceptional standard of manufacture and finish.
With its distinctive unequal-span biplane configuration, the ATOM has been developed as a high-performance platform for serious F3A competition. The airframe can accommodate either a counter-rotating drive system or conventional electric motor, allowing the pilot to select their preferred powertrain configuration.
With a manufacturer-quoted empty airframe weight of just 2,450 g, excluding accessories and landing gear, the ATOM provides an excellent foundation for a lightweight competition build within the FAI F3A requirements.
Specifications
| Designer | Christophe Paysant-Le Roux (CPLR) |
| Wingspan | 1900 / 1750 mm |
| Fuselage Length | 2000 mm |
| Wing Area | 100.5 / 98 dm² |
| Horizontal Stabiliser Area | 17.52 dm² |
| Spinner Diameter | 82 mm |
| Recommended CG | 210–217 mm behind the leading edge of the top wing |
| Empty Airframe Weight | 2450 g* |
| Power System | Counter-rotating drive or conventional motor |
Recommended Servos
| Ailerons | 4 × Futaba BLS173SV |
| Elevators | 2 × Futaba BLS173SV |
| Rudder | 1 × Futaba HPS-A704 |
*Manufacturer’s quoted empty weight, excluding accessories and landing gear set.
Hui Yang ATOM UK
Mach44 Aero supplies the Hui Yang ATOM to F3A pilots throughout the UK.
Please contact us for current availability, colour schemes, pricing and lead times. We can also provide advice on suitable power system, radio and equipment options for your ATOM build.
Mach44 Aero can provide specialist F3A model assembly, radio installation and setup, electric power system installation and custom manufactured components, allowing us to support your ATOM from the initial airframe through to a fully set-up competition model.
UK orders only, please contact us before ordering to discuss delivery times and paint schemes etc.
Full build, setup and trimming packages are available on request.
Interested in an ATOM? Contact Mach44 Aero to discuss current availability, colour schemes, lead times and build options.












