Honeywell, the manufacturer of the T53 series engines, estimates that the T53 series engine has operated safely and reliably for over 70,000,000 flight hours.
Many authorities believe this to be the most reliable helicopter turbine engine ever developed. The original equipment T53-L-13B at 1400 horsepower, while extremely reliable, has proven to be underpowered at high elevations and hot temperatures.
The upgraded T53-L-703 at 1800 horsepower, solves this problem.
The additional 400 horsepower provides the needed power at high altitudes yet still maintains the extraordinary reliability of the proven T53 engine in the Bell UH-1H Plus.
The Uh-1H Plus can receive a tremendous technological upgrade with the introduction of an integrated "Glass Cockpit". Flight instruments may be integrated into two separated and redundant display that easy pilot work load and provide many features not available with the old analog gauges.
Historically a weak point of the Bell UH-1H when used in extreme enviroments is the 204-040-003, 42o gearbox. While it has provided a uniquely long military service life, a better option is now available
Northwest helicopter installs upgraded 212-040-003, 42o gearbox on the performance enhanced Bell UH-1H Plus. this gearbox is virtually indestructible and with it’s 5000 hours overhaul interval is very cost effective to operate.
Another important upgrade Northwest Helicopter incorporates into all of their performance enhanced UH-1H Plus aircraft is the installation of the Global Helicopter Technology Improved Vertical Fin Spar.
The Global Spar eliminates the problems associated with the original equipment “laminated” spar that was prone to cracking. This spar is indestructible and adds to the already phenomenal safety and reliability record of the UH-1H Plus.