Raisbeck ZR Lite – Learjet 35/36

Raisbeck ZR LITE Technology for Model 35/36 Learjets
The only way for a Learjet 35/36 to fly higher, faster and farther from more airports, and save fuel along the way.

Cruise Benefits:

  • 25% less time-to-climb
  • 3000 to 4000 feet higher initial cruise altitude
  • 14% increase in cruise Mach at equal power settings
  • 1% decrease in N1 and 15° ITT reduction at equal Mach
  • 5% decrease in block fuel at equal altitudes and Mach, and 14% or more when taking advantage of higher cruise altitudes, “playing the wind,” etc.
  • 15% increase in range

Takeoff Benefits:

  • New flaps 14º for takeoff
    • V-speeds slower than flaps 20°
    • Climb performance of flaps 8°
  • The Raisbeck ZR Lite opens up many smaller airports
  • Carry more payload/fuel from hot/high airports
    • Extra fuel load adds even more to extended range
  • New 250-knot flaps 8° placard allows better initial descent and approach control
Raisbeck ZR Lite – Learjet 31

Raisbeck ZR LITE Technology for Model 31 Learjets
Now your Learjet 31 can fly higher, faster and farther, and save fuel every leg.

Cruise Benefits:

  • 25% less time-to-climb
  • 2000 to 4000 feet higher initial cruise altitude
  • 14% increase in cruise Mach at equal power settings
  • 1% decrease in N1 and 15° ITT reduction at equal Mach
  • 7.2% decrease in block fuel at equal altitudes and Mach, and 14% or more when taking advantage of higher cruise altitudes, “playing the wind,” etc.
  • 7% or more increase in range

Takeoff Benefits:

  • The Raisbeck ZR Lite reduces drag and enhances climb, which can improve performance and safety margins during the second segment climb phase