2D Cloth-Drag Parachute Simulator

Drop & model controls

Payload lb Start altitude ft Center escape (hole) Auto-close escape ON Auto-close starts at 2000 ft Escape open 100% open 0% = CLOSED (brakes the load) · 100% = OPEN max. Drag to take manual control. Side vents (steering) Auto-steer ON — linked to L/R Left side vent 50% open 0% = CLOSED min · 100% = OPEN max. Open left steers left. Auto-steer moves this; drag to take over. Right side vent 50% open Same for right. Never resets the drop — only Reset does. Gust strength 55% Wind seed repeatable Playback speed 8×

Open Easy Editor →

Loading editor design…

Loaded from editor

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Assumptions (coarse geometry)

2D only — large panels / few points (no micro-mesh)
Balls = air pockets; packing under the bag opens it
Balls hitting CLOTH = the only brake (no ½ρC_dA)
Payload = gravity + mass only (no aero on the load)
Cloth is solid; balls leave only through real open spans
Escape / L / R anchors: OPEN max ↔ CLOSED min from editor
Closing top escape = brake (traps pockets, slows the load)
Wind carries the pit; Pause freezes everything
Trends for design iteration — not a certified drop test

Flies only your Easy Editor geometry — no hidden canopy. Build big, name the openings, read the strip above so you always know what this drop is claiming.

Close view

payload-locked · air-particle pressure · wheel zoom · drag pan · dbl-click reset

Full view

whole drop from altitude to landing

Altitude—

Descent speed—

Wind—

Drag force—

Weight—

Inflation—

Left vent—

Right vent—

Lateral error—

Steering—

Anchors found—

Close start alt—

Escape / brake—

Design—

Numeric plots (secondary)

Altitude (ft)

Descent speed (ft/s)

Drag (lbf)

Sampled values

t s	alt	speed	wind	drag	L%	R%	drift