On 21st of September 2015 “SpaceX” did a Test firing on their newly improve Falcon nine Merlin engines, the testing was on the Densified Propellant… the new testing of the modified engines of the nine Merlin’s increase in sea level thrust of 170,000 from its previous 147,000 pounds… with the newly acquired thrust is hopefully to increase in Payload weight in given packaging on the Dragon nine Cargo or Manned to the international space station as it due to replace the Russian Federal Space Agency, RKA’s tendership of Crew Transport on the Soyuz, manned Progress Command Module… The test firing, a planned fifteen seconds, testing the first stage at Space X’s McGregor Test Launch facilities at Texas….