The Detrum iStone V3 combines V2 and Vector technologies into a single advanced solution. It's a high-performance 6-axis gyro stabilizer designed for RC aircraft. Featuring advanced flight stabilization, runway correction (ground steering assist), and broad receiver compatibility, it significantly enhances flight stability, control precision, and takeoff/landing performance.
Built around a 32-bit ARM processor and MEMS 6-axis sensor, the iStone V3 delivers real-time corrections across roll, pitch, and yaw axes—making it ideal for both beginner pilots and experienced flyers seeking smoother, more controlled flight.
Compatible with standard fixed-wing, flying wing (delta), and V-tail aircraft, the iStone V3 is a versatile upgrade for nearly any RC airplane setup.
Key Features
Advanced 6-Axis Flight Stabilization
- High-precision MEMS gyro + accelerometer
- Real-time correction on roll, pitch, and yaw axes
- Improves stability, tracking, and wind resistance
Integrated Runway Correction (Ground Steering Assist) Tricycle Gear Optimized
- Automatically maintains directional control during landing and takeoff
- Reduces veering and improves runway tracking
- Dedicated wheel output for nose wheel servo
Four Intelligent Flight Modes
Switch easily via a 3-position transmitter switch:
- Gyro Off Mode – Direct control for setup and testing
- Normal Mode – Stabilized flight with gyro assistance
- Safe Mode (Auto-Level) – Keeps aircraft level; ideal for beginners and recovery
- 3D Lock Mode (Aerobatic) – Locks aircraft attitude when sticks are centered
Wide Receiver Compatibility
Supports multiple receiver types:
- PWM receivers
- S.Bus receivers
- DSM receivers
Flexible Aircraft Support
- Conventional fixed-wing aircraft
- Flying wing (Delta) with elevon mixing
- V-tail aircraft with integrated mixing
Fully Programmable via Programming Card
- Mounting orientation (4 directions)
- Wing type selection
- Flight mode assignment
- Roll / Pitch offset (level trim)
- Gain tuning (angle gain & rate gain)
What's Included
| Item | Quantity |
| iStone V3 Stabilizer | 1 |
| Double-sided vibration-damping tape | 2 |
| 3-in-1 signal cable | 1 |
| Single signal cables | 2 |
| Programming card + USB cable | Optional |
Quick Setup Guide
1. Create a new model on your transmitter
2. Assign a 3-position switch for flight modes
3. Install the iStone V3 near the center of gravity (CG)
4. Power on the aircraft on a level surface
- Green LED flashing = calibration in progress
- Do not move the aircraft during this process
5. Configure mounting direction and wing type via programming card
6. In Gyro Off mode, adjust servo centers and endpoints
7. Verify gyro correction directions in Normal mode
8. Fine-tune gains and proceed to flight testing
Flight Modes
| Mode | Description |
| Gyro Off | No stabilization; direct transmitter control |
| Normal Mode | Real-time gyro correction for stable flight |
| Safe Mode | Auto-leveling; keeps aircraft horizontal |
| 3D Lock Aerobatic | Locks aircraft attitude when sticks return to center |
Connection Overview
Supported Inputs
- PWM (standard receiver)
- S.Bus
- DSM
Input/Output Channels
| Port | Description |
| AIL1 | Aileron servo 1 |
| ELE | Elevator servo |
| AIL2 | Aileron servo 2 |
| Rud | Rudder servo |
| Gear | Landing gear output |
| Wheel | Stabilized steering output (nose wheel servo) |
| Gear/Thr | DSM/S.BUS: Throttle output (to ESC) PWM: Gear input (from receiver) |
| Mode/Flap | DSM/S.BUS: Channel 6 output PWM: Flight mode input |
| A-E-R | 3-in-1 cable to receiver Aileron/Elevator/Rudder |
| S.Bus | S.BUS receiver input |
| DSM | DSM receiver input |
| SET | Data interface for programming card |
Installation Guidelines
- Install near the aircraft's center of gravity
- Ensure arrow faces forward (nose direction)
- Align unit parallel to roll and pitch axes
- Use included vibration-damping tape only
- Keep away from motor, ESC, battery, and moving parts
- Maintain proper antenna and wiring routing
Level Calibration (Important)
If the aircraft does not maintain level flight:
- 1. Land and place on a perfectly level surface
- 2. Toggle the mode switch more than 5 times
- 3. Green LED will flash rapidly during calibration
- 4. Restart the stabilizer after completion
LED Status Indicators
| LED Color | Status |
| Solid Blue | Normal Mode |
| Solid Purple | 3D Lock Mode - Aerobatic |
| Solid Green | Gyro Off Mode |
| Blue-Green | Safe Mode |
| Green Flashing | Calibration in progress |
| Red Flashing | Signal lost / transmitter off |
| Red Slow Flash | Calibration failure |
Technical Specifications
| Parameter | Specification |
| Processor | 32-bit ARM MCU |
| Gyro Sensor | 6-axis MEMS |
| Gyro Range | ±2000 dps |
| Accelerometer Range | ±4g |
| Input Signal | PWM / S.Bus / DSM |
| Output Signal | PWM (71.4 Hz) |
| Operating Voltage | 4.8V – 7.4V |
| Operating Temperature | -20°C to 70°C |
| Dimensions | 36.5 × 29.4 × 12.6 mm |
| Weight | 10 g |
Why Choose the Detrum iStone V3 Gyro Stabilizer?
The Detrum iStone V3 gyro is designed for RC pilots who want greater control, smoother flight, and safer operation without complex setup. Its advanced stabilization and runway correction make it especially valuable for:
- Scale and sport aircraft pilots
- Beginners learning fixed-wing flight
- Windy flying conditions
- FPV fixed-wing platforms
- Precision takeoff and landing control
