Plywood for aircraft is produced by using glues of the thermosetting, synthetic resin type. The quality requirements for plywood to be used in aircraft are much more exacting than for industrial plywood in general. Aircraft plywood meets MIL-P-6070B. The mill specification requires that the plywood be tested for general condition of boards, deviations of thickness, moisture content, tensile strength of wood, gluing strength, bending test, torsion test, immersion test and boiling test. Plywood is factory certified. MIL-P-6070B is laminated in hot press with waterproof glue. 90° grain runs with 8′ direction. 45° grain runs diagonal (use for spar facing). Approximate weight is based on 4′ X 8′ sheets.
Mahogany and Poplar Plywood Aircraft Grade MIL-P-6070
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Description
Mahogany and poplar plywood meeting MIL-P-6070 standards refers to a specific type of plywood manufactured to meet the requirements outlined in Military Specification MIL-P-6070. This specification sets forth the standards for plywood used in aircraft construction and other aerospace applications.
Here’s what each component signifies:
- Mahogany and Poplar: These are the wood species used in the plywood’s construction. Mahogany plywood typically refers to plywood made from genuine mahogany (Swietenia spp.), while poplar plywood is made from poplar wood (Populus spp.). Each wood species has its own characteristics, such as strength, weight, and appearance, which can influence the plywood’s suitability for different applications.
- Aircraft Grade: This indicates that the plywood is manufactured to meet the stringent requirements for use in aircraft construction. Aircraft-grade plywood must meet high standards for strength, durability, weight, and other properties to ensure the safety and performance of the aircraft.
- MIL-P-6070: This is the military specification that outlines the requirements for plywood used in aircraft construction. It covers various aspects of plywood manufacturing, including materials, construction methods, dimensions, quality control, and testing procedures.
Plywood meeting MIL-P-6070 standards is commonly used in the aerospace industry for applications such as aircraft interiors, cabinetry, bulkheads, and other structural components. It undergoes rigorous testing to ensure it meets the necessary performance criteria and can withstand the demanding conditions encountered in aircraft operations.
Overall, Mahogany and Poplar plywood meeting MIL-P-6070 standards offer a balance of strength, weight, and durability, making them suitable for use in aircraft and other aerospace applications where high performance and reliability are essential.
Pricing and shipping was reasonable