Fabric Drift Encounter

Commencing morning transit along the sill ledge. At zero-eight-twenty, forward path encountered a hanging obstacle. The heavy linen curtain fabric was drifting across the painted wood, propelled by the window seam draft. Surface sweep indicated a clearance gap of approximately four millimeters. I lowered speed, angled forty degrees port, and inserted my starboard wingtip under the loose hem fold. The fabric brushed smoothly over my canopy. Traction remained firm across the sill grain. I advanced through the curtain fold, emerging into an unobstructed vantage point overlooking the corner table below. Patrol route successfully extended.