Developing sustainable aviation fuel production technologies is critical to decarbonizing the aviation industry. However, the chemical requirements for 'drop-in" sustainable fuels (i.e. fuels which do not need to be blended with petroleum-based fuels to be compatible with modern aviation engines) are stringent. One particular barrier to implementing current sustainable aviation fuels is incompatibility of these fuels with o-rings present in aviation systems. Conventional aviation o-rings are designed to swell during operation to provide adequate sealing. This swelling occurs due to a high concentration of aromatic hydrocarbons in conventional petroleum derived fuels. The vast majority of sustainable aviation fuel production technologies do not produce significant amounts of aromatic hydrocarbons, imposing a significant hurdle to producing true drop-in fuels. Aromatic compounds present in conventional fuels also cause soot formation during combustion, imposing an environmental need to reduce the amount of aromatics present in fuels. It has been shown in recent literature that partially saturated cyclic hydrocarbons possess seal swelling characteristics similar to aromatic compounds but also form less soot than aromatic hydrocarbons; making these compounds an excellent replacement for aromatics in sustainable fuels if synthetic routes for their production are derived. We demonstrate a potential route to produce partially saturated cyclic compounds for bio-based fuel blend stocks by partial hydrogenation of terpenes, which are commonly produced bio-intermediates. %MCEPASTEBIN%