The NP2000 propeller kit by Collins Aerospace provides significant performance upgrades to the C-130 Hercules, C-2 Greyhound, the CP-140 Aurora, the E-3 Hawkeye, and the P-3 Orion for starters. The NP2000 does not just offer eight aerodynamic blades to mount on the Allison T56 turboprop but also less noise, more thrust, and less vibration, plus maintenance costs.