Hi Guys, after some hours building and testing on many different planes i came to the result that ~2378 m/s seems to be the limit for ,,normal constructions,,. To beat this mark i came up with a spaceplane named ,,TRB 1,, This plane is manned only use liquide fuel! All ruels are observed and no modds or machjab were used. This was my first record try with this plane and it ends at 2508,4 m/s ! The concept behind this plane made even higher speeds easy possible. kind regards discus