Research for the Finnish Air Force by VTT extended the life of high-pressure turbine blades in Hornets – almost hundredfold saving achieved

16/12/2015

Kuva: Ilmavoimat

​With the help of research by VTT Technical Research Centre of Finland, the Finnish Air Force (FINAF) has succeeded in increasing the operational life of the high pressure turbine (HPT) blades of its Hornet jet engines by 10%. 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.


FINAF sent the 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 its F/A-18C/D Hornet engines (2 × General Electric F404-GE-402) by around 10%. The FINAF has adopted the new life limit into operational use since May 2015.

VTT's research for FINAF has therefore created savings for the taxpayer and will ensure expertise-based security of supply in Finland.

Further information on VTT's research on FINAF's HPT blades is provided in the publication: http://www.vtt.fi/inf/julkaisut/muut/2013/ICAF_FinlandReview_2013_issue1_3April13.pdf

 

 

Cracks on the leading edge of a HPT blade, opened crack circled.

CUSTOMER SERVICE
Emailinfo@vtt.fi
Tel.+358 20 722 7070
Opening hours Mon - Fri 9:00 - 11:00 and 12:00 - 15:00, UTC +2 time zone

CONTACT US

P.O. Box 1000, FI-02044 VTT, Finland
Tel. exchange +358 20 722 111
Opening hours Mon - Fri 8:00 - 16:30,
UTC +2 time zone

CUSTOMER SERVICE

info@vtt.fi
Tel. +358 20 722 7070
Opening hours Mon - Fri 9:00 - 11:00 and 12:00 - 15:00,
UTC +2 time zone