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Viper II Vibration Analyzer & Balancer
- Transient Fan/Turbine Balance
- Transient Vibration Survey
- Fan Blade Mapper
- TFE 731 Performance
The ACES Viper II Vibration Analyzer is a versatile yet compact instrument that combines all of the diverse technologies required for high-end jet engine vibration analysis, transient balance, rotor track and balance, fan trim balance, propeller balance, and acoustic analysis into one tool. All of these maintenance functions can be easily performed on virtually any airframe and/or engine type using the Viper II.
Transient Vibration Analysis
Accurate High-Speed Run-Up & Coast-Down Transient Surveys
At approximately 6 lbs., powered by an internal battery and using minimal cabling, the Viper II delivers vibration analysis at speed and accuracy levels typically available only in manufacturer test cells.
Track & Balance
Quick, Automated Track & Balance Solutions
The compact Viper II provides accurate solutions in the minimum number of runs, saving costly run time and fuel. Setups are entered into the analyzer which can be customized by the user to accommodate virtually any engine and airframe type.
Transient Fan/Turbine Balance
Save Time and Money by Collecting Data in a Single Sweep
Transient Balance is a method of collecting vibration data at all engine speeds during a balance run, eliminating the need to manually select and dwell at specific speeds. This is one of the most innovative features of the VIPER II, and it maximizes testing efficiency.
Specifications
| Vibration Input: | 9.5V Pk-Pk, 0 to 240 IPS Peak with 20 mV per IPS sensor |
| Sensor Types: | Accepts any vibration signal input (acceleration, velocity, displacement) and any voltage-generating sensor. External charge amplifier required for charge mode. |
| Vibration Amplitude Accuracy: | ±1% across the frequency range |
| Frequency Range: | selectable up to 30kHz (1,800,000 RPM) |
| Tachometer Inputs: | Better than 1-degree phase accuracy 60 to 60,000 RPM |
| Display: | 7" Day/Night Readable Color LCD Display with Superbright LED Backlight |
| Memory: | 1 GB Flash |
| Dimensions: | 10.5" W x 9.75" L x 5" D |
| Weight: | Approximately 6 lbs. (2.8 kg) |
| Power Requirements: | Smart Li-Ion Battery (Internal), 87 Wh |
| Operating Time: | 8 hours |
| Charging Time: | 3 Hours (approximately) |
| Vibration Channels: | 4 each |
| Tach / Mag Pickup: | 4 each |
| Trax Optical Tracker | 1 each |
| Strobe: | 1 each |
| USB Port: | 2 each |
| Phase Accuracy: | <1° |
| Balance Frequency: | 60-60,000 RPM, ± 0.2% |
| Vibration Freq Range: | 0-30 kHz |
| Vibration Amplitude: | 0-240 IPS (peak), 20 mV / IPS |
| Dynamic Range: | 98dB |
| Operating Temperature: | -4°F to 120°F (-20°C to +49°C) |
| Relative Humidity: | 10%-85% (non-condensing) |
| AC Input: | The data acquisition system is capable of measuring AC values to 9.5V Peak-Peak. |
| Sensor Types: | The analyzer will accept any vibration signal input (acceleration, velocity, or displacement.) The input is then displayed as collected or integrated into any other vibration unit. The vibration input will accept any voltage-generating sensor (must have external charge converter when in charge mode) and will supply power to the sensor when required. The Cobra II only accepts acceleration or velocity inputs. |
| Analysis Range: | Anti-aliasing filters are used with a Fast Fourier Transform (FFT) to accurately transform data from the time to the frequency domain. The analyzer will perform FFT resolutions of 100, 200, 400, 800, 1600, and 3200 lines. |
| General Information | |
|---|---|
| Part # | Z4041 |
| Manufacturer | Aces Systems |
| Shipping Information | |
|---|---|
| Schedule B | 9031100000 |
| ECCN | 9B990 |
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AIRCRAFT COMPATIBILITY
| Compatible Aircraft* |
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QUESTIONS & ANSWERS
The Viper II Vibration Analyzer & Balancer is a four-channel diagnostic tool used for vibration analysis, transient balance, rotor track and balance, fan trim balance, and acoustic analysis. It enables precise engine and airframe balancing across multiple operating speeds, helping maintenance crews achieve smoother performance and reduced component wear.
The Viper II’s transient balance function collects vibration data across all engine speeds in one run, eliminating the need to dwell at specific RPMs. This saves time, fuel, and labor while still achieving test-cell-quality balancing results in the field.
According to ACES Systems' specifications, the analyzer delivers ±1% vibration amplitude accuracy across a 30 kHz frequency range – performance comparable to that of laboratory-grade equipment. This ensures high-fidelity readings during transient runs and engine diagnostics.
The Viper II accepts acceleration, velocity, displacement, and any voltage-generating sensors, with optional external charge amplifiers for charge-mode sensors. This broad compatibility allows operators to tailor their vibration monitoring setup for various aircraft systems.
The system’s SmartTach speed and phase processing directly measures engine speed signals, eliminating the need for additional converters or adapters. This feature simplifies setup, increases phase accuracy, and reduces the chance of synchronization errors during balancing procedures.
The analyzer includes a 7” day/night-readable color LCD display with a super-bright LED backlight, ensuring visibility in hangar, ramp, or cockpit environments. On-screen visualizations help technicians maintain smooth engine acceleration and quickly interpret vibration data trends.
Weighing approximately 6 lbs (2.8 kg) and powered by a rechargeable lithium-ion battery, the Viper II is optimized for portability and ease of use during flight-line balancing tasks. Its rugged construction allows reliable operation even in harsh outdoor or remote conditions.
Yes. The analyzer supports direct PDF report generation to a USB flash drive, allowing technicians to capture, store, and share data without external software. This capability simplifies documentation and helps streamline maintenance record-keeping.
With multiple tachometer inputs, the system can simultaneously track and analyze separate rotor speeds – ideal for helicopters and multi-rotor aircraft. This ensures synchronized vibration monitoring across complex drive systems.
The transient vibration analysis mode captures accurate high-speed run-up and coast-down data during engine acceleration or deceleration. This feature allows maintenance teams to identify imbalance or resonance conditions across the full RPM range, similar to test-cell-level diagnostics.
The system is engineered for aviation environments, maintaining precision across a wide range of temperature and vibration extremes. Its sealed housing protects against dust and humidity, ensuring long-term durability during field use.
By combining multiple diagnostic and balancing tools into one compact device, the Viper II reduces the number of runs and calibration cycles required. This accelerates maintenance turnaround times, reduces fuel usage during testing, and keeps the aircraft mission-ready for longer.
Yes. The ACES Systems Viper II Vibration Analyzer & Balancer can be integrated with microphones to measure sound levels and identify frequency ranges associated with airframe or cabin noise. By correlating vibration and acoustic data, technicians can more efficiently isolate the source of noise – whether it’s aerodynamic, mechanical, or structural. With multiple input channels, the Viper II can simultaneously monitor and analyze several factors, streamlining troubleshooting for complex aircraft systems.
No. Neither the Viper II analyzer nor its accessories are classified as hazardous materials. The system is safe for handling, storage, and transport in maintenance and operational environments. However, because it contains rechargeable lithium-ion batteries, an MSDS (Material Safety Data Sheet) is available upon request for compliance or shipping documentation.
