Comments on: Joby-backed H2Fly achieves progress in hydrogen technology

By: Al

Al — Thu, 28 Jul 2022 01:25:36 +0000

Hydrogen is great but a pressurized system is dangeous im sure with a community of engineers and researchers surely we can come up with an on demand system and if we cant then go back to gas and vaporize it to exceed current mpg for extreme effiecient system,you researchers are a little slow!!!

By: Greg

Greg — Tue, 26 Jul 2022 23:55:25 +0000

In reply to ross nolan. Yes unless green hydrogen is used it would not be emission free except when flying. However unless batteries are charged with only solar or wind generation,they are not emission free either. The advantage hydrogen would have over batteries is weight. Need a lot of batteries to keep an airplane flying and hydrogen could be refueled faster then charging batteries.

By: ross nolan

ross nolan — Thu, 21 Jul 2022 00:42:26 +0000

A ruptured liquid hydrogen tank could be interesting — shades of the problems with C stoff and T stoff in the Me163 (dissolved pilots) wasserstoff might be best kept well away like in the centre pod of the twin Taurus .. Would not boil off over extended periods on the ground be an issue and embrittlement of metallic tanks or cold shattering of plastic ones ? In any case the energy and emissions to create LH2 renders it far from zero emissions like battery power as well.