Firefighting Airship Lab Blender 5.2

A helium airship scoops water from the lake, flies to the forest fire and drops it. Real buoyancy, ballonet, drag, wind-drift and plume numbers. Drag to orbit, wheel or pinch to zoom, tap the map to place a target. All fires burn in an uninhabited valley; no people or animals are shown.

Presets

Fly the sortie

Vertical autopilot (pitch + thrust vector)

Guidance (wind triangle)

Drop run across the wind (wet line along the front)

Auto sortie loop (drop, scoop, drop ...)

Airship, weather and fire

Class

Readouts

Experiments

A. How much water makes the ship neutrally buoyant? For each altitude the closed form (weight of displaced air minus gas, ballonet and structure) is compared with a bisection on the live flight integrator. Uses the current temperature offset, superheat, fuel and class.

B. What happens when the water leaves? Starting neutral, a fraction of the water is dumped and nothing compensates: the rise is compared with the analytic terminal speed, and the nose-down pitch that would cancel it is given.

Speed for pitch estimate m/s

Press a button.

Self-checks (computed in your browser)

The science