Air Velocity Check — Explosives Magazine Drift
Velocity from quantity and section for a explosives magazine drift, checked against its practice band (0.3–2 m/s).
Magazines want gentle, continuous airflow — enough to prevent humidity damage and fume accumulation, slow enough never to disturb stock or carry a fire toward the inventory. The low cap is deliberate; this is the one airway where MORE air is the wrong answer.
Formula
Note: Mine ventilation is statutory and life-safety territory: airflow quantities, gas limits and re-entry times must be set by the registered ventilation engineer/manager under your jurisdiction's mining regulations — this calculator is a planning and training aid.
Velocity from quantity and section for a explosives magazine drift, checked against its practice band (0.3–2 m/s). A free mine ventilation & air quality tool — no sign-up, no upload, instant results in your browser.
About Air Velocity Check — Explosives Magazine Drift
Air Velocity Check — Explosives Magazine Drift computes the governing relationship v = Q / A live as you type. Magazines want gentle, continuous airflow — enough to prevent humidity damage and fume accumulation, slow enough never to disturb stock or carry a fire toward the inventory. The low cap is deliberate; this is the one airway where MORE air is the wrong answer. Defaults are pre-filled with realistic values for this exact scenario, and the worked example substitutes your numbers step by step so the math is never a black box.
How to use Air Velocity Check — Explosives Magazine Drift
- 1Enter your values — Airflow quantity, Airway cross-section, Band minimum, Band maximum (sensible defaults are pre-filled).
- 2Read the live results: Air velocity.
- 3Check the "with your numbers" line to see v = Q / A substituted step by step.
- 4Adjust inputs until the scenario matches yours, then copy or share the result.
Why use Air Velocity Check — Explosives Magazine Drift?
- ✓Instant, free and private — every calculation runs client-side in your browser; nothing is uploaded
- ✓Built on the stated formula v = Q / A with authoritative sources cited on the page (McPherson, M.J., Subsurface Ventilation and Environmental Engineering; MSHA 30 CFR Parts 57/75 — Ventilation standards)
- ✓Magazines want gentle, continuous airflow — enough to prevent humidity damage and fume accumulation, slow enough never to disturb stock or carry a fire toward the inventory.
- ✓SI ⇄ Imperial toggle converts your inputs in place, so you can work in the units your drawings use
Frequently asked questions
What formula does the air velocity check — explosives magazine drift use?+
It evaluates v = Q / A, exactly as published. Sources: McPherson, M.J., Subsurface Ventilation and Environmental Engineering; MSHA 30 CFR Parts 57/75 — Ventilation standards. The substituted worked example on the page lets you verify every step against the textbook.
How should I read the result — and how far can I trust it?+
Magazines want gentle, continuous airflow — enough to prevent humidity damage and fume accumulation, slow enough never to disturb stock or carry a fire toward the inventory. Mine ventilation is statutory and life-safety territory: airflow quantities, gas limits and re-entry times must be set by the registered ventilation engineer/manager under your jurisdiction's mining regulations — this calculator is a planning and training aid.
When is this calculator the right tool for the job?+
Velocity from quantity and section for a explosives magazine drift, checked against its practice band (0.3–2 m/s). A free mine ventilation & air quality tool. The low cap is deliberate; this is the one airway where MORE air is the wrong answer. For neighbouring scenarios, the related tools below cover the same engine with different presets.
Does it support both metric and imperial units?+
Yes — the SI ⇄ Imperial toggle converts the values already in the fields, preserving the physical quantity, so you can flip mid-calculation without re-entering anything.
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