Carbon brakes are old technology from the 1980's The energy conversion is newer...

http://www.boeing.com/commercial/aeromagazine/articles/qtr_03_09/article_05_1.html

7985589-carbon.jpg (247 downloads)

1941 Taylorcraft
1968 Charger
1994 Wrangler
1998 Wrangler
2008 Kia Rio
2017 Jetta

I didn't do 4 years and 9 months of Graduate School to be called Mister!