
Ballasted
The Space Research Calculator
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Free
About
Ballasted is a companion for neutral-buoyancy research, guiding you through every step of underwater gravity simulation. Simply enter a subject’s mass and select the target gravity, and the app:
1. Computes segment-wise ballast weights based on anthropometric models
2. Adjusts for material specific gravity to ensure accurate in-water loading
3. Outputs segmented totals for the torso, per-thigh, and per-ankle
Ideal for researchers and trainers in neutral buoyancy facilities this tool cuts setup time and helps you focus on testing EVA procedures and equipment under realistic partial-gravity conditions.
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What's New in Ballasted
1.1
August 26, 2025
Now includes a feature to add the weight of a spacesuit to the test subject and calculate apparent weights! Also features an annotation to clarify the weights displayed are per-ankle and per-thigh.
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