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Helitune developed the Rotortuner 2000 (RT 2000) as a fourth generation portable/on-board Rotor Track and Balance (RTB) and Vibration Analysis (VA) system.
The Rotortuner 2000 is used to analyse and provide solutions for:

Main & Tail Rotor Balance
Propeller Balance
Blade Tracking
Vibration Analysis
Transmission & Shaft Bearing Monitoring
Trend Analysis
Zero to 30kHz vibration analysis also provides component and vibration order limit checking, along with trending.

New Features

Operating System and Version Control:
Rationalisation of the data structure provides the Firmware 4.22 user with simplified upgrade procedures, releasing space on Test Cards for additional flight data, and reducing both boot and data collection times. It also provides for improved data traceability by storing the Data Collection Unit Serial Number and the Version Status along with each data packet.

Rotor Tracking:
In addition to the standard automated track acquisition, blade height and lead/lag data from the Line Scan Camera may now be viewed live, with a selection of format options.
Individual blade positions may be retained on-screen in order to build up a composite picture of blade movement for the duration of the viewing period. This feature is of great assistance in identifying blade instability due to mechanical wear in rotor head components. A further feature has been added in order to assist operators in resolving the track at below normal operating speeds. This overcomes the situation where an in-field blade replacement results in an excessive track split, which prevents the rotor accelerating to a normal test condition.

Vibration Analysis:
In order to assist operators in determining structural vibration, including simple resonance checks, it is now possible to acquire an asynchronous vibration signature without reference to a rotating component.

The standard vibration review options are now complemented by the ability to print amplitude values of every spectral line in the signature, to print all the values that exceed a chosen value, or to base the print upon information in the Order Sheet. This feature allows users to filter out the key orders of interest.

Vibration Absorber Tuning:
Many aircraft types incorporate vibration dampers, which require tuning to be most effective in reducing vibration at the blade passing frequency at the standard operating speed of the rotor.
Firmware 4.22 introduces a programme dedicated to the rapid acquisition of the data required, and then performs the necessary transfer function calculations in order to determine the actual tune status compared with the target status.

Balance Data:
In order to assist in the prevention of aircraft flying over the permitted balance limit, the amplitude and raw phase of the balance is now displayed on the data collection screen immediately upon completion of balance acquisition.