Helicopter Expert Witnesses

helicopter expert testimony

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Helicopter subject expert witness candidates typically have a background in wireless communications, mechanical engineering, aircraft maintenance, FAA regulation, air traffic controlGPS, flight operations, and/or are helicopter pilot training – depending on the specifics of the case. An expert witness must not only have the appropriate substantive expertise but should also possess the ability to explain evidence and technology to lay people, including judge and jury.

Example projects requiring an aviation expert witness could involve intellectual property, such as patent infringement litigation, inter partes review in the PTAB, or trade secret disputes. Forensic engineering of components can prove (or disprove) intellectual property infringement or theft. A specialist in helicopter technology and operation might also provide expert testimony in a product liability case involving failure analysis, or be called upon to testify in a helicopter crash investigation. In addition, a law firm may seek an aviation industry expert for pre-litigation consulting work. Litigation support by a helicopter expert witness could include reverse engineeringaccident reconstruction, writing an expert report, providing expert opinion, and expert witness testimony in court. Cahn Litigation Services has searched for experts in cases involving:

Cahn Litigation Services is skilled and experienced at identifying experts to provide expert witness services for helicopter litigation matters. The firm is often called upon by law firm clients to locate expert witnesses, representing either the plaintiff or defendant, with specific knowledge in helicopter systems and technology.

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Helicopter Expert Witness - Representative Bios

Please Note: All Cahn Litigation expert witness searches are customized to attorneys' precise specifications and preferences. Attorneys are encouraged to discuss search parameters with a Cahn search specialist.

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The below expert witness bios represent a small fraction of those Helicopter experts known by Cahn Litigation Services. These bios are provided to give lawyers a sense of the Helicopter landscape.

Expert Witness #222583

This expert has many years of direct hands-on experience performing tests, inspections, installations, and troubleshooting aircraft communication transceivers in many makes and models of general aviation aircraft. This experience is under the industry recognized term of "Avionics", which includes a wide range of aircraft electronic equipment. This expert owns and operates an FAA certified repair station exclusively focused on avionics testing and certifications with fixed-wing and helicopter capabilities nationwide.

The communication transceiver tests this expert performs includes transmit power output and frequency checks to verify the output power of the transmitter and the accuracy of the frequency tuner within the radio. It is important to note that these tests may be performed on the bench with bench test equipment and the subject radio being removed from the aircraft and associated antenna. Or, the tests may be performed while the radio is installed in the aircraft and connected to the associated com antenna using ramp test equipment. This expert's experience is primarily with the latter scenario.

This expert was a technical instructor for an Air Training Academy where this expert taught blocks of training required under FAA Part 147. This expert also served as an FAA Designated Mechanic Examiner, administering the FAA oral and practical exams to applicants for the Airframe and Power Plant certificates. This expert is also an accomplished instrument/commercial pilot with over 1800 hours in fixed-wing single and multi-engine aircraft and is a member of the Aircraft Owners and Pilots Association, Experimental Aircraft Association, and Aircraft Electronics Association.

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Expert Witness #252504

This expert has served as an active duty helicopter pilot conducting a variety of operational missions nationwide and served as a helicopter flight instructor, aeronautical engineer and maintenance test pilot. During military service, this expert specialized in aircraft operations, maintenance, sustainability, engineering and logistics. This expert brings to the table many years of experience as a Pilot/Aeronautical Engineer/Logistician/Acquisition Officer directing operations and maintenance, leading advanced technology upgrades, directing/developing people, and implementing/managing complex large-scale systems and logistics infrastructures for operations, security, maintenance and production. This expert led two of the largest acquisition programs in helicopter fleet history as the Chief Systems Engineer/Logistician. As Director of Aircraft Maintenance and Logistics, this expert led a multi-million dollar fleet engine upgrade program of helicopters; scheduled and maintained a 22-helicopter annual depot maintenance, throughput while re-engineering an average of 38 helicopters per year. This expert developed and implemented a logistics infrastructure to support continuous aircraft deliveries and maintenance inductions, coordinated superior engineering support and technical services to sustain the operational fleet, and developed operational requirements, obsolescence studies, reliability and cost data to extend the service life of a helicopter an additional 20 years. This expert has served as the lead aviation engineering investigator on a fatal helicopter crash and served as a subject matter expert on two additional mishaps.

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Expert Witness #252765

This expert is an FAA Consultant DER (Designated Engineering Representative) specializing in multiple aspects of helicopter design (including gearbox). In addition to work in design and test, this expert has many years of experience as an aircraft stress analyst, specializing in Static, Fatigue & Damage Tolerance, Materials and Processes (Metal and Composites) for damage tolerance repairs for transport aircraft. This expert is qualified at the Expert level proficiency in Finite Element Analysis and Fatigue/Damage Tolerance analysis. This expert has a proven track record of developing and approving repairs to high dollar value flight safety critical members, including helicopter swashplate and other rotor head components which had been considered beyond economic repair. This expert's experience with helicopter transmissions include:

-  static and fatigue and damage tolerance evaluation and testing of the drive system components for the AW609 tiltrotor.
-  Alternate Means of Compliance (AMOC) for an airworthiness Directive(AD) for the aft upper vertical driveshaft for the Model 107 heavy lift helicopter.
-  resolving cracking problems in the bevel gear attach bolts for the two-piece Model 234 Aft Gearbox Sun Gear.
-  gearbox thermal analysis to resolve problems arising from 2nd Stage Main Rotor Planetary Gear Carrier cracking
-  Worked on repairs to the following fatigue critical powertrain components
 AS 365 Reduction Gearbox Housing
 S76 Gearbox Upper Housing
 Bell 204 Main Rotor Transmission Housing
 Bell 212 Main Rotor Mast

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Expert Witness #252792

This expert is an internationally recognized expert in the field of Mechanical Power Transmission design, test, manufacture, and failure analysis. This expert is Founder and Chief Engineer of a highly successful Mechanical Power Transmission consulting company. This expert leads a team of highly skilled and experienced Senior Engineers including metallurgists, gear and bearing and drive specialists. This expert also has a full-service forensic laboratory for gear system failure investigation.

This expert and team have an extensive gear/bearing system background which spans both high and low speed, heavily loaded, extremely critical gear systems for a variety of applications ranging from helicopters to space craft and from mine to mill. This includes complete design, manufacturing and quality control support for geared systems of all types and sizes as well as gear/bearing system failure analyses and root cause determination.

Prior to establishing a consultancy, this expert spent decades with an aircraft manufacturer's Helicopter Division and retired as Senior Technical Fellow - Gear Technology. This expert specialized in applied mathematics, kinematics, analytical gear system design and synthesis, finite element analysis, and computer programming. This expert was also responsible for the continued development and operation of the company's computer aided gear design systems as well as many related computer programs, including a complete Gear Finite Element Method Analysis System.

This expert is an active participant in the American Helicopter Society (AHS), American Society of Mechanical Engineers (ASME), Society of Tribologists and Lubrication Engineers (STLE), the American Gear Manufacturers Association (AGMA), and the Association of Iron and Steel Engineers (AISE).

This expert has provided consulting services in field failure analysis and patent and trade secret litigation by detailing the State-of-the-Art in mechanical power transmission systems and interpreting technical information for the legal staff. This expert has also served as an expert witness in Federal Court.

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