If you don't see a model you are looking for check on the main OpenSim project page.
Download for DARPA Warrior Web Project teams. Contact Jen Hicks at firstname.lastname@example.org to become a member of the OpenSim Warrior Web Project Site.
SimTK is maintained through Grant R01GM124443 01A1 from the National Institutes of Health (NIH). It was initially developed as part of the Simbios project funded by the NIH as part of the NIH Roadmap for Medical Research, Grant U54 GM072970.