What it doesn't have is a propeller ... while extending the lifecycle of aircraft fleets. The NP2000 was further developed to reduce airframe vibration and noise by around twenty decibels ...

The new propellers reduces airframe vibration and noise, improving crew endurance and ... and plan to modify over 160 aircraft. The improved thrust and reliability directly benefit aerial refueling ...

When paired with Blackhawk’s XP67A Engine+ Upgrade, the combination will unleash the potential of the King Air 350, making it ...

“Prior to this testing we only had a single aircraft cleared for refueling ... manufacturer Collins Aerospace. The prop system also reduces airframe vibration and noise by around 20 decibels ...