The SAB Goblin RAW 700 is a high-performance 700-class competition radio-control helicopter engineered for extreme 3D flight and high-energy aerobatics. It utilizes SAB's signature belt-driven modular architecture, an ultra-lightweight aluminum-housed power train, an advanced adjustable rotor head, and a 12S electric propulsion layout.

SAB Heli Division positions the RAW 700 as an avant-garde competition machine, emphasizing rigidity, minimal aerodynamic drag, optimized center-of-gravity placement, and a permanent open canopy structural design that maximizes cooling efficiency for high-draw electronics.

This technical dossier synthesizes official factory specifications, manual data, and verified engineering calculations for the Goblin RAW 700 platform.

1. Core specifications
2. Airframe dimensions
3. Main rotor system
4. Main drivetrain
5. Tail-drive system
6. Power system
7. Battery system
8. Structural design
9. Rotor head and swashplate
10. Bearing and shaft information
11. Servo installation
12. FBL / gyro installation
13. Canopy and aerodynamics
14. Landing gear
15. Headspeed analysis
16. Gearing calculations
17. Tail-speed calculations
18. Rotor loading
19. Battery energy calculations
20. Real-world configurations
21. Vibration and blackbox data
22. Low-RPM operation
23. Blade selection
24. Motor/KV analysis
25. Assembly information
26. Known hardware
27. Kit contents
28. Important undocumented parameters
29. Technical assessment

The core mechanical specifications are documented in the official SAB Goblin RAW 700 assembly manuals and technical datasheets.

The optimized fuselage layout combines a compact 1,435 mm overall length with a wide 1558 mm rotor circle, maximizing disk loading efficiency and agility.

The standard kit includes high-performance 690 mm carbon fiber main blades. The rotor head is engineered from high-grade 7075 aluminum alloy with extensive tuning adjustability.

Primary rotor dimensions

The head design incorporates a dampening system composed of 3 O-rings (defining rigidity) and a techno-polymer damper (defining maximum spindle travel range), allowing pilots to tailor flight response.

The enclosed modular power train utilizes heavy-duty helical gears and a Delrin swashplate guide. By swapping motor pulleys from 18T to 26T, the main reduction ratio can be tuned across a broad 12.1:1 to 8.8:1 window.

The RAW 700 utilizes an ultra-lightweight aluminum tail case with a 35 mm diameter 6082 aluminum tail boom. Large-diameter pulleys ensure high transmission efficiency.

Tail design features

• Quick and easy tail fin replacement system.
• Included tail belt tensioning tool that clips onto the boom for precise setup.
• Integrated belt tensioner indicator showing correct operational tension.
• High-efficiency large-diameter drive pulleys.

The airframe is designed to house high-torque 12S brushless propulsion systems capable of sustaining extreme collective transients.

Battery access is achieved through an innovative front-loading hatch system that slides locking trays directly into the core frame structure.

Nominal battery energy

Operating on a nominal 12S LiPo array (44.4 V):

A standard 5,000 mAh 12S pack delivers approximately:

The kit includes two dedicated quick-release battery trays equipped with secure strap mounting points.

The RAW 700 frame architecture emphasizes ultra-low dry weight combined with high torsional rigidity for competition performance.

Principal structural features

• Minimalist permanently-mounted structural canopy frame layout.
• Precision CNC-machined aluminum motor mount and bearing blocks.
• High-strength carbon fiber side frames and reinforcement plates.
• Isolated electronics mounting decks to mitigate high-frequency harmonics.
• Included tail belt tension verification tool.

The rotor head uses an ultra-lightweight 7075 aluminum hub and 10 mm spindle. The blade grip arms are fabricated from 6061 aluminum with a sacrificial design intended to protect primary grips during a crash.

The assembly manual details a robust bearing complement across all rotating assemblies to maintain zero slop under heavy aerodynamic loads.

The airframe accommodates standard 40mm full-size servos across all four control channels. Servo geometry is aligned for direct-to-swash pushrod linkage without intermediate bellcranks.

• Three standard 40mm digital cyclic servos.
• One standard 40mm high-speed digital tail servo.
• Direct linkage layout minimizing mechanical backlash.

The Goblin RAW 700 accepts all major commercial flybarless control units (e.g., V-Bar, Spirit, Brain/BD3SX, Rotorflight controllers). A dedicated flat gyro mounting platform is positioned on the upper rear frame deck, isolating the sensor package from primary powertrain vibrations.

Unlike traditional helicopters with removable full fuselages, the RAW utilizes a structural front-access aerodynamic cowling combined with an exposed carbon tail boom and frame spine.

Design advantages

• Substantially reduced side-profile aerodynamic drag during high-speed stall turns.
• Unrestricted airflow directly cooling the motor windings and ESC cooling fins.
• Instant battery access via the front sliding hatch without removing structural cowlings.

The landing gear features wide-stance composite skids attached via high-impact nylon struts designed to absorb landing shock and protect the lower frame plate during autorotation touchdowns.

The recommended operational headspeed range for the Goblin RAW 700 spans from 1,800 RPM to 2,300 RPM depending on flying style and dampener configuration.

Using the standard 10.1:1 reduction ratio (21T motor pulley):

With the standard 4.9:1 tail reduction ratio:

Using the standard 1,558 mm main rotor diameter (with 690 mm blades):

At the published dry airframe weight of 2,620 g (2.62 kg):

With a fully loaded competition setup (approx. 5.1 kg ready-to-fly weight with 12S 5000mAh batteries and electronics):

Typical competition setups for the SAB Goblin RAW 700 feature premium electronics tailored for instantaneous power delivery and thermal headroom.

The enclosed aluminum gearbox and stiff carbon frame maintain exceptionally clean mechanical transfer paths. When configuring high-performance FBL units, proper gain tuning and notch filtering eliminate structural resonance, ensuring crisp tail lock and precise cyclic tracking during high-G maneuvers.

The SAB Goblin RAW 700 represents a pinnacle in modern 700-class helicopter engineering. By marrying an ultra-lightweight dry airframe (2,620g) with an enclosed modular drivetrain, adjustable dampening geometry, and superior component cooling, SAB has created a competition platform that excels across both smooth precision aerobatics and aggressive 3D smack flying.