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Research for the Finnish Air Force by VTT extended the life of high-pressure turbine blades in Hornets


Customer: Finnish Air Force
Finnish Air Force Hornet


Increasing the lifespan of the F/A-18C/D Hornet engines (2 × General Electric F404-GE-402)


FINAF sent VTT's research results and some used HPT blades to the engine manufacturer. On the basis of the research findings and its operational experience, GE increased the lifespan of the HPT blades for the FINAF’s F/A-18C/D Hornet engines by around 10%. The FINAF has adopted the new life limit into operational use since May 2015.

Further information on VTT's research on FINAF's HPT blades is provided in this publication.

  • VTT's research for FINAF has therefore created savings for the taxpayer and will ensure expertise-based security of supply in Finland.
  • The saving for taxpayers is an estimated 3 million US dollars, or over 2.7 million euros, compared to which the research investment was modest and the return (ROI) almost 100 times the research investment.