Question

The UH-60M main rotor blade spar is constructed of what?

Answer 1

The UH-60M main rotor blade spar is constructed of carbon fiber reinforced plastic (CFRP), a composite material known for its strength and lightweight properties.

Step-by-step explanation:

The UH-60M main rotor blade spar is constructed of a strong and lightweight material called composite materials, specifically carbon fiber reinforced plastic (CFRP).

Composite materials are widely used in the aerospace industry due to their high strength-to-weight ratio and durability.

CFRP consists of layers of carbon fiber sheets embedded in a matrix material, such as epoxy resin. This combination provides excellent strength, allowing the rotor blade to withstand the forces exerted during flight while keeping it relatively light.