Rigidizable Guide Tube

Improving the accuracy
and repeatability
A stable platform for repeatable inspection. GE Aerospace’s Fuel Nozzle Rigidizable Guide Tube (RGT) aids GEnx -1B and -2B customers with achieving quick inspections of the Aft Heat Shield. The RGT aligns and orients existing customer borescopes, providing a stable platform to obtain repeatable perpendicular views of the Aft Heat Shield, enabling an accurate assessment of the condition of the hardware.

A window into the future of inspection
Windows along the length of the RGT are aligned with the fuel nozzles, allowing the side view borescope tip a perpendicular view of the aft heat shields. Fuel nozzles are viewable using 2 opposite borescope ports, enabling a full fuel nozzle set inspection in less than 1 hour.
Borescope
compatibility
Compatibility with 6mm borescopes from leading manufacturers, with side facing measurement and non-measurement tips.

GEnx Fuel Nozzle Inspection with and without RGT
Benefits
With FN RGT
Without FN RGT
Process time
Less than 1 hour
Significant Inspection Required ~4hrs
Inspection ability
All Fuel Nozzles
(The 2 in front of the borescope ports
can be easily seen using the borescope alone)
(The 2 in front of the borescope ports
can be easily seen using the borescope alone)
All Fuel Nozzles
Repeatability
Repeatable positioning enabling rapid location of Fuel Nozzles.
Repeatable orientation and alignment providing a perpendicular view of the fuel nozzles
Repeatable orientation and alignment providing a perpendicular view of the fuel nozzles
Very limited and inspector dependent
Calibration and servicing
Return to base servicing required once a year (or after 50 engine deployments).
Regular calibration intervals
Let's start the conversation
At GE Aerospace, we understand that every operation has unique priorities and challenges. Whether you are exploring a product, service, or technical solution, our team is ready to connect you with the right expertise and support. Start the conversation with us to discuss your needs and identify the solution that best fits your goals.