Ralph Schweizer Modeltechnic CRS & Hacker C54-3D L 85mm Spinner Combo
Ralph Schweizer Modeltechnic CRS & Hacker C54-3D L 85mm Spinner Combo
This Ralph Schweizer Contra Rotating System (CRS) gearbox is pre-mounted with the Hacker C54-3D L motor, including an integrated soft mount system and an 85mm spinner for the Allure/Alchemy. Weighing just 608 grams with the motor, this drive system offers exceptional efficiency and a quiet, service-friendly design.
Built entirely in Europe from carbon fibre, titanium, and aluminium, it features Japanese EZO ball bearings and German-made needle bearings with hardened steel cages for the planetary gears. The recommended Mejzlik propellers are sold separately.
Key Features
| Brand | Ralph Schweizer Modeltechnic |
| Model | CRS & Hacker C54-3D L |
| Spinner Size | 85 mm (also available in 82 mm and 91 mm) |
| Weight (with motor) | 608 g (21.45 oz) |
| Motor Type | Hacker C54-3D L in-runner |
| Gearbox | Contra Rotating System (CRS) |
| Mounting | Integrated soft mount system front and rear |
| Bearings | Japanese EZO ball bearings; German needle bearings with hardened steel cages |
| Gear Set | Hacker C50 Acro Competition |
| Materials | Carbon fibre, titanium, aluminium |
| Origin | Europe |
| Recommended Propellers | Mejzlik 22" x 20" rear, 22" x 18" front (sold separately) |
| Compatible Propeller Brands | Mejzlik, Falcon, Brenner, PT |
| Compatible Aircraft | Allure, Alchemy (and other F3A models) |
Highlights
- Ultra-lightweight 608g complete system
- Integrated soft mount for vibration reduction
- Service-friendly design with front removal
- Japanese EZO bearings and German planetary gears
- Made in Europe from carbon fibre, titanium, and aluminium
What's included
- Ralph Schweizer CRS gearbox
- Integrated soft mount system
- 85mm spinner assembly
- Hacker C54-3D L motor
Frequently asked questions
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