Description
Looking for your next F5J competiton RC model?
Meet the Invader F5J FAI – 2026 addition to our lineup, a 4-meter carbon F5J glider built to dominate.
It is result of years of team’s experience in competition model production, combined with the modern computer simulations.
Invader is not just a new player at the field – it lifts up the quality standard and handling performance to the next level.
Invader F5J Glider Features
You’ll get all you wish from an ultimate F5J competition machine!
✅ 2-piece fuselage
✅ 4-panel wing
✅ removable X-tail
✅ Variable wing joiners with angles of your choice
✅ Rohacel core + Carbon skin consctruction for wings and tails
✅ Wide servo and powertrain choices
✅ Pre-installed LDS/IDS system on the wings
✅ Pre-installed 30mm universal motor mount
✅ Enhanced kit that will require no glue finish.
Just bolt on your servos, motor, receiver, battery – and you are good to go!
Note that the nose part of the fuselage is made of carbon cloth, so you will need to run your antennas outside.
The ballast tube instlled in the fuselage allows for a quick flying weight adjustments at the field.
So, don’t forget to add ballast as well as the reflective covers with your order as needed.
For more information about the performance of the model as well as building tips, please, see the RCGroups thread on Invader F5J.
Invader F5J Technical Data
Total Wingspan: 3940 mm
Root Chord: 250 mm
Wing Aspect Ratio: 18.7
Main Wing Area: 82.9 sq. dm
Tailplane Area: 9.1 sq. dm
Total Area: 92 sq. dm
Wing Aspect Ratio: 18.7
Wing Airfoil: IVA-1, 7.2%
Flap Size: 32%
Aileron Size: 28% at the “root”, to 25% at the tip
Weights and wing loads for all layups are WIP
The model is availabe in a few layups:
- [Future Development] Light FAI-limit – AUW from 1150 g, or 800 g of dry weight
- [Future Development] Light – AUW from 1250 g, or 900 g of dry weight
- Regular – AUW from 1350 g, or 1000 g of dry weight
- Strong – AUW from 1450 g, or 1100 g of dry weight
By default, the kit comes with a set of joiners measured at:
- 1.5° central joiner
- two 7° wing-tip joiners
But upon request, you can also choose an alternative / spare set of:
- 2° central joiner
- two 9° wing-tip joiners
And you can add some extra ones if you wish to change that for your model.
Recommended Gear for Invader F5J
- Tail Servos: KST A08 + a 3D-printed servo frame
- Flap Servos: KST X10H Wing or X10H Wing Mini for a pre-installed LDS / IDS
- Aileron Servos: KST X08, X08H, A08, A08H, X08 Plus, X08H Plus, HS08A, HS08B, PTK 7308, for a pre-installed LDS / IDS
- Motor: XPower F2919/10 Light, XPower F2925/8 Windy, Tenshock GDM1510B, or similar
- Spinner: 30mm
- Folding Prop: 10×6, 11×6, 11×8, or similar – see the motor specs
- Speed Controller: Dualsky SUMMIT 60X, Dualsky SUMMIT 60 Light, or similar – see the motor specs
- Battery: GNB 850mah 60C 3S1P HV LONG, GNB 1100mah 60C 3S1P, or similar
Recommended Settings for Invader F5J
| Invader F5J Control Throws and Camber Settings | |||
|---|---|---|---|
| CG Position | 100mm from the LE, measured at the root of the wing. | ||
| Rudder | TBA | ||
| Elevator | TBA | ||
| Ailerons | TBA (Ail to Flap: TBA) | ||
| Cruise | “Flat” bottom of the wing (0mm) or aligned with wing fairing on the fuselage. | ||
| Speed | 2mm up | ||
| Thermal 1 | 3.5 mm down or more | ||
| Thermal Max | 5 mm down or more | Brakes | Flaps: TBA, Ailerons: TBA |
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