COST-EFFECTIVE SOLUTION FOR GOVERNMENT, MILITARY, SPECIAL MISSIONS, AND CONTRACT OPERATIONS
The Blackhawk XR Endurance Kit significantly boosts King Air 350 mission capability, keeping government, military, and special mission operators airborne despite aging fleets and shrinking budgets. The complete XR Endurance Kit features powerful Pratt & Whitney Canada PT6A-67A engines, lightweight 5-blade natural composite Hartzell or MT propellers, CenTex Aerospace Saddle Tanks, heavyweight landing gear, high flotation tires, fully enclosed landing gear doors, a maritime rudder, and the True Blue Power TB44 lithium-ion battery. To learn more, contact us at 833-702-2351.
Upgrade TodayTurn-Key Aircraft Acquisition and Fleet Sustainability
220 Lbs. of Increased Mission Payload
MTOW of 16,500 Lbs., Including in Extreme Conditions



Blackhawk has over 20 years of aircraft performance experience supporting civil, military, and government flight operations. We understand the unique requirements and demands of special mission flying. We specifically designed our XR Endurance Kit to perform in challenging ISR environments including air ambulance, surveillance, aerial survey, and a number of additional, demanding mission scenarios.
In addition to performance enhancements, the XR Endurance Kit impressively impacts the bottom line. The kit provides improved performance and operational flexibility at a significantly lower acquisition cost when compared to other special mission aircraft. New propellers, engines, heavyweight landing gear, a lithium-ion battery, and auxiliary fuel lockers are all included in the kit.
Upgrade TodayA Blackhawk Performance Center can certainly perform the installation, as can any of our approved installation facilities worldwide. These facilities have the experience to complete the upgrade faster and with the higher exacting quality you demand. Call your Blackhawk representative to help find the installation facility that’s right for you.
Blackhawk orders all engines approximately one year in advance, but lead time can vary by engine model. Call for timing on the next set of available engines.
Yes. We work with several banks that offer very competitive rates.
To date, nearly every Blackhawk powered aircraft that has been resold within 500 hours of the upgrade has sold close to or higher than the combined investment of the airframe and engine(s). Resale value of Blackhawk powered aircraft remains strong in all markets. Many dealers are even speculating on Blackhawk powered aircraft.
In addition to worldwide product support and product branding, Blackhawk XP Engine+ Upgrades offer the following benefits:
Yes. In fact, many charter companies prefer operating aircraft upgraded with a Blackhawk XP Engine+ Upgrade because they are able to generate more revenue due to shorter times to destination and lower operating costs.
Pratt & Whitney Canada (PW&C) offers an engine credit for every hour remaining to the factory TBO. To qualify, the core engine must have enough cycles on the life-limited components to make TBO and all records supporting the component times and cycles must be present and submitted. Waiting until TBO risks the possibility of a core engine problem, resulting in additional core charges from PW&C. Also, prices from P&WC increase every year, so waiting two or three years would mean a higher investment without any of the time-remaining credit.
Blackhawk offers transformative performance without the risks of buying new: Will you be able to sell your aircraft for the value you expect? Will there be unexpected costs to acquire your new aircraft? Will there be unexpected issues not uncovered by the pre-buy? Upgrading with Blackhawk eliminates uncertainty and the transactional costs of buying another aircraft while transforming the performance and utility of the aircraft you know best.
Why wait to start enjoying the many benefits of an upgrade? Save money on every mission you fly, increase the capability of your aircraft, and take advantage of generous core credits for time remaining. Over half of Blackhawk’s customers upgrade with more than 500 hours remaining.
Yes, the fuel burn is greater at equal altitude. However, taking advantage of the increased climb performance and higher cruise speeds significantly narrows or eliminates the increase in fuel consumption. Also, utilizing the increased climb and cruise performance will reduce block times and deliver a significant reduction in overall operating costs. Typically, any increase in fuel cost will be offset by a larger reduction in direct operating costs. We’ve done the math, it pays to fly faster!
Yes, you’ll spend more on an upgrade than an overhaul, but you’ll have so much more to show for it: increased earning ability, better resale value, enhanced safety, reduced operating costs and a better flying experience.