3 ms·

I thought we had an alternative gas that has been produced and works but is just not yet fully certified and tested?

• funkaster 5y ago
  that is the definition of "no legal alternative"
  • Melatonic 5y ago
    My bad - should have restated that - I thought it was certified for a lot of planes and airports but not all (that it can potentially be certified for) and that there is a lot of potential there as a fix