A boron hydride suspension formulation was developed with improved particle stability. The suspension remains homogeneous for extended periods without settling. Ground testing shows 10-15% specific impulse improvement over baseline IWFNA-morpholine-TEA system. The boron powder approach had promise, but particle settling was problematic. A solution was needed to keep boron particles suspended in fuel for extended periods. A boron hydride suspension was developed using a proprietary surfactant system. Surfactants coat the boron particles and prevent settling. The suspension is stable for months without requiring mixing. Several boron hydride compounds were tested - diborane derivatives, pentaborane, decaborane - to find the best candidate. A boron hydride compound was selected that offers the best combination of energy density, stability, and handling safety. The suspension formulation was carefully optimized. Boron hydride concentration is about 15% by weight. Surfactant concentration is about 2% by weight. The remainder is the morpholine-TEA fuel blend. Results from ground testing are excellent. Several test fires were conducted with boron hydride-enhanced fuel. Specific impulse is 10-15% higher than baseline system - achieving 245-260 seconds, which is outstanding. Combustion is clean and efficient. Exhaust contains boron oxide particles, but they are fine and do not cause damage to the test stand. Thrust is steady and consistent throughout the burn. Long-term stability of the boron hydride suspension was tested. Samples stored for several months remained homogeneous. No settling or separation occurred. Handling and safety of boron hydride fuel were tested. It is more hazardous than baseline morpholine-TEA blend, but with proper procedures, it is manageable. Safe procedures for mixing, storing, and handling boron hydride fuel were developed. Additional ground testing with boron hydride-enhanced fuel was planned. Thruster configurations and test stand parameters would be varied for future tests. This represents exciting progress. The performance envelope of the propulsion system was being expanded. With boron hydride additives, specific impulse values rivaling some advanced chemical propulsion systems were being achieved.