#FLIGHTGEAR FORUMS FULL#
#FLIGHTGEAR FORUMS PROFESSIONAL#
#FLIGHTGEAR FORUMS DOWNLOAD#
#FLIGHTGEAR FORUMS MAC#

* structural stress limit computation based on wing bending moment Thrust for the Shuttleįrom the huge solid rocket boosters (SRBs) used to get the spacecraft off the launch pad to the tiny Vernier thrusters used for attitude hold in orbit, the Shuttle utilizes more than 50 distinct engines, all with their unique characteristics. * realistic trim behaviour - if the weight distribution on entry is off nominal and the orbiter is tail-heavy, the elevons may no longer be sufficient to control the vehicle * Mach-dependent pitching moment caused by speedbrake opening * suction effects on the orbiter aft fuselage caused by elevon deflection at high Mach numbers * realistic cross-couplings between the pitch, yaw and roll control channel

#FLIGHTGEAR FORUMS FULL#

* full accounting of the non-linearity of the pitch response to elevon deflection at high Mach numbers * double or triple differential dependence (Mach number, AoA and elevon deflection) for the major coefficients (e.g. * full Mach number dependence of all relevant force and moment coefficients All aerodynamics used is based on NASA technical documents in public domain - for the nominal regime, in-flight data has been used, for off-nominal situations wind tunnel results both for the mated launch vehicle and the orbiter alone have been utilized.ĭuring entry, the Shuttle drags a bright plasma trail.įeatures of the aerodynamical modeling include: For a similar reason, the response of the craft to elevon deflections is non-linear and asymetric at high Mach numbers and high AoA and gradually becomes symmetric only at lower airspeeds.Īerodynamics is where Flightgear and JSBSim excel - the platform offers the possibility to incorporate a huge amount of available data into the simulation. Yaw stability in this regime is then purely managed by the flight control systems.

While the craft is yaw-stable at subsonic speeds, at supersonic and hypersonic speeds the high AoA places the vertical stabilizer essentially outside the airstream, making the craft dynamically unstable in the yaw axis. The entry into the atmosphere is flown at a high AoA of 40 degrees, creating a detached shockwave of hot plasma which limits the direct heat transfer to the fuselage, while at lower Mach numbers the AoA is gradually reduced, leading to a more aircraft-like behavior. Through this range, the aerodynamical properties change drastically. Spanning the full range of a rarified atmosphere rushing by at Mach 27 to the dense low atmosphere through which the Shuttle glides at subsonic speeds on final approach, the orbiter probes a huge variety of conditions.

#FLIGHTGEAR FORUMS DOWNLOAD#

Download repositories: Last stable version Possibly unstable development version Aerodynamics

#FLIGHTGEAR FORUMS PROFESSIONAL#

The main platform for the aerodynamical, orbital motion and systems simulation is JSBSim, a sophisticated Open Source multi-platform flight dynamics engine which is also used in research and professional applications.įor the 3.6 release, the Shuttle is a beta version - the modeling of aerodynamics, flight controls and systems is in a fairly advanced state, but the visuals (both outside and in-cockpit) and the avionics displays are work in progress. Note: If you did not get a reponse, even after 7 days, you may want to check out the FlightGear mailing lists to ask your question there.The Space Shuttle model for Flightgear, released together with version 3.6, aims to re-create this experience by a detailed modeling of all aspects of the spacecraft's operations, ranging from sophisticated aerodynamical modeling to a comprehensive simulation of the Shuttle's systems and the effect of their failures. If you are seeing corrupted/broken textures, please see this article. To run FlightGear on old computers with bad OpenGL support, please take a look at this wiki article. If you experience FlightGear crashes, please report a bug using the issue tracker (can be also used for feature requests). please upload a screenshot of the problem.

#FLIGHTGEAR FORUMS MAC#

copy&paste your commandline (tick the 'Show commandline box on the last page of FGRun or the 'Others' section on the Mac launcher). is there any output printed to the console (black window)? does the problem occur with any aircraft, at any airport? what OS (Windows Xp/Vista, Mac etc.) are you running? Make sure to include answers to at least the following questions in your initial post. In order to help you, we need to know a lot of information.

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