ACROSS DOWN 2 Type of steel used for firewalls 1 Aircraft wing design that uses external struts or wires to assist in 3 The positive angle formed between the lateral axis of an airplane supporting the wing and carrying the aerodynamic and landing loads and the center line of the wing 2 A wood specie used as the reference to which all other aircraft 7 The ability of a material to resist stress without breaking structural woods are compared 8 Material's internal resistance, or counterforce, that opposes 4 One of the most widely used metals in modern aircraft construction deformation 5 Stress/Strain 9 A fixed-wing aircraft. 6 Type of landing gear configuration 11 Engine mount that offers the best of cushioning the vibrations and 10 Single shell type fuselage structure movements from the engine 14 Supports the aircraft during landing and while it is on the ground 12 Part of an airplane that generates the most of the lift during flight 19 The stress that resists a force that tends to pull something apart 13 A coating of pure Aluminum providing corrosion protection 20 Provides space for cargo, controls, accessories, passengers, other 15 The tail section of the airplane equipment 16 Type of horizontal stabilizer made of steel tubing 21 An aircraft structure that carries all of its loads on an internal 17 Combination of materials that are mixed together to achieve specific skeleton or frame. structural properties not present in any individual component 22 An enclosed compartment in an aircraft in which an engine is 18 Weakening of an aircraft structure due to action of fluctuating stress mounted 21 The stress that produces twisting 23 A physical mixture of chemical elements combined with a metal to change its characteristics 24 Corrosion resistant metal 25 Combination of compression and tension 26 Type of fibers used in composite structures