Message posted by Smythers on August 06, 2020 at 16:15:55 PST:

Forgot to add the link to the concept artwork from 2019.

In Reply to: Hermeus mach 5 engine a success - USAF throws its hat into the ring posted by Smythers on August 06, 2020 at 16:11:53 PST:

Replies:

• Re: Hermeus mach 5 engine a success - USAF throws its hat into the ring Arnaud 08/07/2020, 5:24:50 PST (0)