An abradable lining in the fan case
- prevents fan blade tip rub.
- produces less leakage at tips for anti-ice.
- provides acoustic medium.
Explanation from PART66Online
The lining around the fan case is a soft abradable material that also forms part of the acoustic treatment, absorbing fan noise within the intake/fan duct. Its abradable nature lets a blade tip cut its own clearance without damage, but in this context its function is to provide an acoustic (sound-absorbing) medium.
A
alectaylorob asked · 13h ago
This answer isnt wrong but isnt its main purpose to provide tip clearance? I feel aiding in acoustics is no where as important?
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