Aerospace
Explore aerospace calculators and engineering guides for aerodynamics, aircraft performance, range, fuel, propulsion, atmosphere, stability, and flight mechanics.
AAAPub
Aerodynamics
Aerodynamics is the study of how air interacts with moving objects. For aircraft, the introductory results are lift, drag, aerodynamic moments, and pressure changes around wings and bodies.
Advanced scientific
Math & Education · U.S. guide 4 advanced scientific calculators that go far beyond basic math Need matrices, complex numbers, logarithms, statistics, numerical calculus or engineering notation without buying a graphing calculator? These four non-graphing scientific models are built for exactly that. EngineeringCalculusComplex numbers MatricesStatisticsPhysics Affiliate disclosure: As an Amazon Associate, we may earn from … Read more
Tax software
Finance, Tax & Business · U.S. guide Tax software for real-world returns: business, self-employment, investments & rentals The hardest part is often not entering numbers—it is buying the right edition. A sole proprietor, an S corporation, a landlord and a stock investor can all have “business-like” tax situations, yet they may need very different software. … Read more
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Prime for Young Adults · U.S. More room in your budget. Less friction in your week. Eligible higher-education students and young adults ages 18–24 can try Prime for Young Adults for six months at $0, then continue at a discounted membership rate—with Prime delivery, entertainment, member savings and young-adult extras in one membership. Check eligibility … Read more