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BY IMMEDIATELY REDUCING VIBRATION IN THE DRIVE TRAIN, AND PERIODICALLY CHECKING AND RE-BALANCING THE AIRCRAFT AS REQUIRED, (EVERY 200-250 FLIGHT HRS.) THE AIRCRAFT CAN ACHIEVE AND MAINTAIN A MINIMUM VIBRATION PROFILE OVER ITS LIFE.


to TBO. The longer a dynamic component remains on- wing, the lower the operating cost to the operator. By immediately reducing vibration in the drive train,


and periodically checking and re-balancing the aircraft as required, (every 200-250 flight hrs.) the aircraft can achieve and maintain a minimum vibration profile over its life. Helicopters without CDB will have a certain rate of vibra- tion increase that is as components wear over time, their vibration levels will increase at a certain rate. This rate his- torically is exponential in nature.


HOW IT WORKS The concept of operation is simple. There are


accelerometers temporarily placed in designated locations along the drive train, along with sensors, the aircraft is then run on the ground and measurements are taken. The com- puter then analyzes the information, calculates a solution, and displays it to the technician. The technician follows the solution instructions and performs the adjustments to the drive train. After applying the solution to the drive train, a verification run is performed to confirm the immediate


reduction in vibration. Then, the sensors are removed along with the special cables and the aircraft is returned to service. The entire process takes an average of two hours for the first balancing run. Subsequent runs historically take much less time, sometimes as little as 30 minutes. As part of the balancing process the system checks additional condi- tions such as onboard sensors are checked for accuracy, air- craft clutch health condition, accessory gearbox is exam- ined, gearboxes modulation and hangar bearings perform- ance are examined. ◆


About the Author: ELI NAVON is a businessman whose involvement extends throughout the defense, aviation technologies and real estate Industries. Seven years ago, he


entered the defense industry and since then, he has worked on many successful projects. Narvon’s contribution to defense industry spans from United States to Europe and the Israeli defense market place. Eli Navon is known for his business acumen, penchant for detail and perfection, as well as a disciplined approach for business, management and finance. His trained vision for new opportunities has lead to numerous successful projects. Eli Navon served in the Israeli Defense Force (IDF) and is a successful 3rd generation entrepreneur.


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