




SAB ILGoblin PRO 420 (SG427)
Next-gen 420-class performance with ILGoblin styling
The ILGoblin PRO 420 brings the sleek ILGoblin design language to the legendary 420 platform, delivering a lightweight, rigid airframe with crisp control and big-heli presence. Borrowing cues from larger ILGoblin models, it pairs a clean single-stage transmission with a quick battery system and smart serviceability throughout—built to fly hard and maintain easily.
Highlights & Features
- Striking ILGoblin canopy & boom aesthetics with excellent visibility
- Single-stage 420 transmission for efficient, direct power delivery
- Quick-release battery tray with SAB quick connector for fast swap-outs
- Smart crash economy: Zytel HTN sacrificial arms help protect major components
- Optimized CG: forward tail-servo layout; supports mini tail servos
- Confident tail authority: 70–72 mm tail blades with aluminum tail side plate
Technical Specifications
Main rotor diameter | ≈ 935 mm (with 420 mm blades) |
Main blade length | 380–420 mm |
Tail rotor diameter | ≈ 194 mm (with 70–72 mm tail blades) |
Tail ratio | 4 : 1 |
Cyclic servos | Micro (≈23 mm class) |
Tail servo | Mini (≈35 mm class) |
Main shaft / Tail shaft | 8 mm / 5 mm |
Battery tray clearance (max) | ≈ 140 × 40 × 50 mm |
Recommended battery | 6S LiPo, 2200–2700 mAh |
Suggested motor KV | ~900–1000 KV on 6S |
Recommended ESC | 60A class (70–80A for hot weather or aggressive 3D) |
Included in the Kit
- iLGoblin 420 helicopter
- Factory canopy & boom (ILGoblin scheme)
- Motor pulley
- Battery tray with straps & SAB quick connector
- 420 mm main blades
- 72 mm tail blades
- Hardware and linkages
Recommended Setup (Popular Options)
ESC
- Scorpion Tribunus III 06-80
- Scorpion Tribunus II 12-80
- HobbyWing Platinum 80A V5
- XDFly HPro 65A / 85A
Cyclic Servos (Micro, 23 mm)
- KST X12-508 HV (×3)
- KST X12-708 HV (x3)
- KST SV12-12 SHV (x3)
- THETA THS921A HV (×3)
Tail Servo (Mini, 35 mm)
- KST DS565X HV or KST MS565 HV
- KST X15-755X
- KST X15-855X
- THETA THM982 HV
- THETA Sabre-T1
Battery Options (6S)
Notes: Specs and recommended components may vary with flying style and ambient temperature. For intense 3D in hot conditions, consider higher-amp ESC and slightly larger capacity packs (within tray limits).