Aerospace Engineering

Aerospace engineering covers atmospheric flight (aeronautics) and spaceflight (astronautics) — fixed- and rotary-wing aircraft, UAVs, missiles, launch vehicles, and spacecraft.

Overview

Aerospace is dominated by tight weight budgets, severe environments, and life-safety certification. Every gram is tracked; every part has a paper trail; every assumption is verified.

Aerodynamics

• Lift: L = ½·ρ·V²·S·C_L
• Drag: D = ½·ρ·V²·S·C_D
• Reynolds: Re = ρVL/μ — viscous vs inertial.
• Mach: M = V/a — subsonic, transonic, supersonic, hypersonic.
• Boundary layers, airfoil sections (NACA), wing planform, shock waves.

Propulsion

• Thrust: F = ṁ·(V_e − V₀) + (p_e − p₀)·A_e
• Specific impulse: I_sp = F / (ṁ·g₀)
• Tsiolkovsky: Δv = I_sp·g₀·ln(m₀/m_f)
• Turbojet, turbofan, turboprop, ramjet, scramjet, rocket (LOX/RP-1, LOX/LH2, hypergolic, solid).

Structures & Materials

• Semi-monocoque skin-stringer-frame construction.
• Materials: 2024-T3 / 7075-T6 aluminum, Ti-6Al-4V, Inconel, CFRP, honeycomb sandwich.
• Fatigue & damage tolerance (FAR 25.571).
• Static, fatigue, flutter, and bird-strike testing.

Avionics & Controls

• Flight control laws (mode-blending, fly-by-wire).
• Buses: ARINC 429, ARINC 664 (AFDX), MIL-STD-1553, CAN, TTEthernet.
• Inertial navigation (IMU/INS) blended with GNSS.
• DO-178C software, DO-254 hardware, DO-160 environmental.

Standards

• FAR / EASA CS-25, CS-23 — airworthiness.
• RTCA DO-178C / DO-254 / DO-160.
• AS9100 — aerospace quality management.
• NASA-STD-5001 / 5012 — structural design.
• ECSS — European space standards.