Aerodynamic Gliding Sink Polar & MacCready Speed-To-Fly Models
Process high-efficiency aircraft descent paths, compute local current drift changes, calculate hot air columns, and track exact glide velocity bounds.
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Orbital period ↔ semi major axis — Kepler's third law
Solve planetary/stellar orbit periods or semi-major axis distances.
Spring rate — lb/in ↔ N/mm — suspension setup
Convert suspension coil spring stiffness between lb/in and N/mm. Estimate coil spring rates using wire diameter, coil diameter, and active counts.
Musical Note ↔ Frequency
Translate standard musical notes and octaves to precise audio hertz frequencies.
Batch recipe ↔ percentage recipe — glaze chemistry
Normalize raw ingredient batch weights to percentage formulations or scale a recipe to any total batch weight.
Firewood volume — cords ↔ cubic meters ↔ cubic feet
Convert between cords, face cords, steres, and cubic volumes. Compute solid wood volumes, green or dry weight, and thermal BTU outputs.
GLIDING-SOARING Utilities
Choose a specialized option to begin instant real-time conversion.
Glide ratio (L/D) — distance ↔ height lost
Convert lift-to-drag glide ratio into horizontal distance reached versus vertical altitude loss under zero-wind and head/tailwind conditions.
Sink rate — airspeed ↔ altitude loss per minute
Calculate glider sink rate in knots or m/s from airspeed and polar parameters, yielding altitude loss rate.
Thermal strength — climb rate ↔ core diameter estimate
Estimate thermal core diameter, updraft velocity distribution (Gaussian profile), and optimal bank angle for maximum climb rate.
Speed to fly — polar curve ↔ McCready interthermal speed
Calculate the optimum speed to fly between thermals based on the glider polar curve, expected next thermal climb rate, and headwind/sink.
Final glide calculator — height + glide ratio → reach distance
Analyze safety margins, required arrival altitude, wind impact, and distance reachable for your glider final glide phase.