Boeing 727


Stage 3 Noise Reduction Kits

Does your 727 comply with FAA Stage 3 Noise Regulations?

"Keep 'em flying!" with our 727 Stage 3 Noise Reduction Kits. Available in multiple configurations to suit all mission profiles for 727-100s and 727-200s, these kits are the most economical, least invasive Stage 3 System available. For information about pricing and availability for your particular model, contact us by phone at (206) 723-2000 or (800) 537-7222, or email


  • Short installation downtime
  • No changes in the engines
  • No structural changes or winglets that could jeopardize Boeing support
  • Negligible increase in OEW (7 to 99 lbs depending on configuration)
  • No performance loss
  • Increased list from high altitude airports
  • No changes in cockpit procedures
  • No changes in crew training

Design Approach

The Raisbeck approach extracts the maximum possible benefit out of the inherent performance in the original door design.
Where new hardware is necessary, care has been taken to leave the original structure and engines unaltered. The Raisbeck Stage 3 Noise Reduction System makes no changes in airframe stress or engine temperature/pressure patterns which might affect the durability of the aircraft—or even the basis of its original certification.
The net effect on overall performance is positive, with very small impacts on empty weight and landing distance, a small savings in fuel burn, and a significant increase in second segment climb capability which can favorably affect RTOWs under hot and/or high altitude conditions.



Scroll for More ?