Recent Blogs
Sarrus Linkage Mechanism: How It Works, Parts, Formula, Diagram and Uses Explained
Sarrus Linkage explained — the spatial straight-line mechanism behind deployable solar arrays, scissor lifts, and folding optics. With formula and worked example.
Variable Wing Sweep: Ideal Normal-Mach Projection
Compare M cos(sweep) for two entered angles. The calculator gives scalar projections only; lift, drag, shocks, wing-pivot loads and aircraft operating limits are not predicted.
Slotted Flap Mechanism Explained: How It Works, Diagram, Parts, and High-Lift Uses
See a hinged slotted flap move, explore chord and sweep references, and calculate a dimensionless factor product.
Krueger Flap: Panel Concept and Entered-State Comparison | FIRGELLI
Compare entered lift coefficients and speeds beside a conceptual Krueger-panel animation, with explicit limits on hinge geometry and aircraft performance.
Cyclic Pitch Control Linkage Mechanism Explained: How It Works, Parts, Diagram and Uses
Explore a generic three-blade cyclic pitch linkage. Adjust swashplate motion, pitch horns and link length to compare blade feathering through a rotor revolution.
Constant-speed Propeller Mechanism: How It Works, Parts, Diagram & Governor Explained
Explore a propeller governor’s response direction. Compare ideal flyweight forces, RPM error and spring-equivalent displacement without predicting blade angle.
Collective Pitch Control Linkage Mechanism: How It Works, Parts, Diagram & Formula
Collective pitch control linkage explained — how helicopter swashplate linkages change blade pitch simultaneously to control lift, climb, and descent.
Bell Stabilizer Bar Mechanism Explained: How the Flybar Damps Cyclic Input on Two-Blade Rotors
Learn how the Bell stabilizer bar damps rotor cyclic input on helicopters like the Bell 47 and UH-1, with formulas, examples, and design tradeoffs.
Coaxial Contra-rotating Rotor Mechanism: How It Works, Parts, Diagram, and Uses Explained
Follow two counter-rotating rotors on concentric shafts. Calculate their delivered torque split, net airframe reaction and combined shaft power at equal rotor speeds.