Summerwood
The less porous, usually harder portion of an annual ring that forms in the latter part of the growing season, the summer of the year.
Aviation Maintenance Technician Handbook — Airframe, p. G-34
The less porous, usually harder portion of an annual ring that forms in the latter part of the growing season, the summer of the year.
Aviation Maintenance Technician Handbook — Airframe, p. G-34