This thesis deals with the comparison of ISO 10300:2001, DIN 3991:1988 and AGMA 2003-C10 which are used to calculate the load capacity of bevel gears without center axle offset. This process is assisted by the calculation software FVA Workbench 4.0 and KISSsoft 03/2016. The tail rotor bevel gear of an unmanned aerial vehicle is used as illustration. Due to problems with the material database, which could not be solved by the support team, a calculation with FVA Workbench 4.0 was not possible. Therefore the calculation was only conducted with KISSsoft 03/2016. For the theoretical analysis of how the standards are implemented by the software, FVA Workbench was still considered, because of its very detailed manual. Potential differences in results were further investigated.