Helicopter Auxiliary Fuel System

Helicopter Auxiliary Fuel System

Rob Hardman

WEC were engaged to support the fluid mechanical and electrical aspects for the design & development of an auxiliary fuel system for a military helicopter. This project required a significant contribution from our team regarding rig, aircraft ground and flight testing.

 

The project

WEC specialist engineers supported the fluid mechanical and electrical aspects for the design & development of an auxiliary fuel system for a military helicopter. This project required a significant contribution from our team regarding rig, aircraft ground and flight testing.

  • Our engineers authored the rig test requirements for the auxiliary fuel tank and supervised the testing at the client’s facility.
  • Testing established tank capacity, useable and unusable volume, effective sump volume, undrainable volume, expansion space and transfer rate.
  • In analysing the rig test results the ensuing data was available to verify an internally developed, mathematical model subsequently used to predict fuel transfer performance.
  • WEC authored aircraft ground test requirements for hydromechanical and fuel quantity calibration tests and supervised these tests at the client’s facility.
  • The ‘on aircraft’ hydromechanical tests, utilising a partially configured system, confirmed the results of the rig testing. This additional data was used to further develop the mathematical model of the transfer system and increase the fidelity of the performance predictions for the fully configured system.
  • Additional test requirements authored by our team included EMC/EMI, Lighting Assessment, Electrical Functional Test and the NVG Lighting Set Up for Cockpit Control Panel. These tests were performed by the client.
  • WEC also authored a flight test requirement which was then carried out by the client’s flight test department. This was a functional flight test of the installed system where proper system function was observed. Transfer rate data was recorded and compared to the transfer system model showing good correlation.
  • All rig, ground and flight test results and data were reviewed and analysed by our team.
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Requirements management

The benefit

Early involvement in the project enabled us to work with the client to develop and implement the most appropriate testing strategy for this project. When coupled with our domain and process understanding, the data gathered through the rig, ground and aircraft testing successfully provided compliance evidence for certification. WEC specialists then authored all of the associated certification reports.

Our systems approach and whole life cycle experience enabled our fluid-mechanical experts to help our clients to implement an efficient and effective test strategy as part of their wider development programme.

Learn more about our Testing service by calling 0161 482 8508 and speaking to one of our experts.

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