This standard prescribes the requirements for medium strength plywood used in the construction and repair of aircraft and gliders. It covers acceptable timber species, manufacturing processes, thickness tolerances, adhesive quality, and mechanical testing to ensure flight safety.
Specification for Medium Strength Aircraft Plywood
Quick Reference Values
moisture content8 to 12 percent
adhesive requirementBoiling Water Proof (BWP) synthetic resin conforming to IS 848
veneer qualityStraight grained, free from knots, splits, and decay
Practical Notes
Aircraft plywood cannot be substituted with standard commercial plywood due to stringent defect-free veneer requirements and high shear strength criteria.
Ensure the plywood is stored in a climate-controlled environment to strictly maintain the 8-12% moisture content limit, as fluctuations can severely impact adhesive bonds and structural integrity.