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  2. SpaceX Merlin - Wikipedia

    en.wikipedia.org/wiki/SpaceX_Merlin

    In 2011, performance goals for the engine were a vacuum thrust of 690 kN (155,000 lbf), a vacuum specific impulse (I sp) of 310 s (3.0 km/s), an expansion ratio of 16 (as opposed to the previous 14.5 of the Merlin 1C) and chamber pressure in the "sweet spot" of 9.7 MPa (1,410 psi). Merlin 1D was originally designed to throttle between 100% and ...

  3. Expansion deflection nozzle - Wikipedia

    en.wikipedia.org/wiki/Expansion_deflection_nozzle

    While research into this nozzle continues, it could be used before all its advantages are developed. As an upper stage, where it would be used in a low ambient pressure/vacuum environment specifically in closed wake mode, an E-D nozzle would offer weight reductions, length reductions and a potential increase to the specific impulse over bell nozzles (depending on engine cycle) allowing ...

  4. Expansion tunnel - Wikipedia

    en.wikipedia.org/wiki/Expansion_tunnel

    In aeronautics, expansion and shock tunnels are aerodynamic testing facilities with a specific interest in high speeds and high temperature testing. Shock tunnels use steady flow nozzle expansion whereas expansion tunnels use unsteady expansion with higher enthalpy, or thermal energy. In both cases the gases are compressed and heated until the ...

  5. Comparison of orbital rocket engines - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_orbital...

    Falcon 9 B5, Heavy: Active 1st RP-1 / ... Chamber pressure (bar) Mass (kg) Thrust: weight ratio [e] Oxidiser: fuel ratio Aeon 1

  6. List of Falcon 9 first-stage boosters - Wikipedia

    en.wikipedia.org/wiki/List_of_Falcon_9_first...

    Falcon 9 Full Thrust (version 1.2 / Block 3) was the first version of the Falcon 9 to successfully land. Changes included a larger fuel tank, uprated engines and supercooled propellant and oxidizer to increase performance. Block 3 and Block 4 are found in this list while the active Block 5 is listed separately.

  7. Falcon 9 Full Thrust - Wikipedia

    en.wikipedia.org/wiki/Falcon_9_Full_Thrust

    The third version of the Falcon 9 was developed in 2014–2015 and made its maiden flight in December 2015. The Falcon 9 Full Thrust is a modified reusable variant of the Falcon 9 family with capabilities that exceed the Falcon 9 v1.1, including the ability to "land the first stage for geostationary transfer orbit (GTO) missions on the drone ship" [14] [15] The rocket was designed using ...

  8. SpaceX Starship design history - Wikipedia

    en.wikipedia.org/wiki/SpaceX_Starship_design_history

    A pressure test at about 2/3 of the design burst pressure was completed in November 2016. [43] In July 2017, Musk indicated that the architecture design had evolved since 2016 in order to support commercial transport via Earth-orbit and cislunar launches. [44] 2016 artist's concept of the ITS booster returning to the launch pad

  9. Max q - Wikipedia

    en.wikipedia.org/wiki/Max_q

    Chart of dynamic pressure during the Mercury-Redstone 4 mission. Max q occurs 90 seconds after launch, at 600 lb/sq ft (290 hPa).. The max q, or maximum dynamic pressure, condition is the point when an aerospace vehicle's atmospheric flight reaches the maximum difference between the fluid dynamics total pressure and the ambient static pressure.