About Helitune

Helitune is the market leader in the design and manufacture of Rotor Track & Balance equipment as well as vibration analysis equipment for all dynamic components. The equipment can be utilised on various machine types including helicopters and turbo-prop aircraft. Helitune has an ongoing commitment to deliver practical solutions that respond effectively to our customers' operational and cost of ownership needs. In order to achieve this objective, it is Helitune’s policy to strive towards business excellence through continuous improvement. Helitune currently has over 1,000 Rotortuner systems in more than 30 countries around the world. Independent subsidiary businesses launched in Munich, Germany and Chicago, USA which provide sales and support to strengthen and assist our network of distributors throughout the world.

A team of highly qualified design engineers ensure that products are developed to the highest standards, with experts in electronic, mechanical, software, environmental and EMC. Helitune’s team of widely experienced aircraft engineers advise the design engineers on aircraft specifics to ensure that the equipment is designed to meet the different requirements of each application. Helitune offers training on-site or at Helitune’s facilities in the UK, USA or Germany. Training is carried out by aircraft engineers who have first-hand experience of the everyday problems encountered by operators. Comprehensive after-sales support is important to Helitune and the company provides this through feedback and hotline telephone assistance. Part of our support policy includes the provision of repair and calibration services. We are also capable of offering a Total Care and Maintenance package, which includes upgrades and annual calibrations to ensure the equipment purchased by our customers is of the latest standard and maintains reliability and accuracy. Innovation, experience and dedication have enabled Helitune to offer a comprehensive range of equipment and services to solve vibration problems in helicopters and fixed-wing aircraft.


Applications:

Rotor Track & Balance

Rotor Track & Balancing (RTB) is the general term used to collect data from the dynamic components of helicopters and fixed wing aircrafts props. The data is collected whenever the pilot has reported heavy vibration, after scheduled maintenance, post replacement of dynamic components or whenever called for in the maintenance manual. Specialist equipment is required to measure the vibration and to collect track data. For over 30 years Helitune have manufactured such equipment.

The Rotortuner product range includes Helicopter RTB kits such as the RT-2000 and RT-5JS+, Propeller Balancing equipment such as the RT-Balancer and engine vibration monitoring equipment such as the RT-JEM. Helitune also manufacture the required peripherals including blade trackers, optical pick-ups and all required cabling. The blade tracker, the Line Scan camera, is used to accurately collect the blade track, acquiring the track at the tip of the blade. Relevant tolerances and technical specifications are available here. The Optical Pick Up, Magnetic Pick Up and the Accelerometers are fitted to the aircraft according to the particular aircraft Maintenance Manual.

Helitune also provide aircraft Application Notes to help the operator carry out the correct RTB, propeller balancing or engine vibration procedures. Data is collected using specific setup cards provided by Helitune that carry information for the specific aircraft being monitored. The collected data can then be compared to known limits. Should the aircraft be outside of these limits the Helitune equipment can provide the necessary adjustments required to bring the aircraft back within limits. All collected data can then be stored on the Helitune Ground Station, RT-Vision. This allows the operators to archive data whilst also providing tools to carry out reviews and trending of the data stored. To gain most benefit from the Helitune equipment it is strongly recommended that equipment and vibration training is carried out. Helitune flight test personnel are highly experienced and able to provide training courses from Basic to Advanced. This can be provided in the UK at Torrington or at the customers site. On aircraft training can also be carried out as and when required.


Engine Vibration Monitoring

In addition to Rotor Track and Balance, another field of application of the Helitune product is monitoring of helicopter and fixed wing aircraft engines. Any unbalance within the rotating components will generate radial loads in the rotation frequencies of the bearings (1R), which will in turn produce vibrations with the same frequency in all of the static engine parts. The highest levels of stress and vibration are experienced when critical speeds are reached during a run-up or a run- down. Nearly all Engine Manufacturers mandate vibration checks during different stages of the turbine cycle in order to monitor any potential imbalance when moving from transient to steady-state. Before being installed in the aircraft, engines are initially checked on test beds, where vibration checks can also detect any latent issues in relation to suspension or misalignment.

Helitune provides complete Monitoring Systems, including cables, transducers and mountings, designed for utilisation within high temperature environments and configured to meet the OEM’s requirements in terms of power settings and frequency ranges. Helitune Engine Vibration Monitoring Systems are approved on a number of different engines.