The Library

Heavy Lift Analyses, Cost Tables, and Regulatory Explainers

Load charts, cost anatomy, and regulatory explainers for the estimators, engineers, and project managers who plan heavy lift work. Figures are verified and regulations are cited, so the numbers hold up when you take them into a bid.

Filtered by tag: Hot and High Operations · Clear filter

Operations · Jul 13, 2026 · 12 min

High, Hot, and Heavy: How Density Altitude Governs Every Helicopter Lift

Helicopter payload is dynamic: it falls roughly 3% per 1,000 ft of density altitude, so high, hot sites cut capacity well below the brochure figure.

Density Altitude High Altitude Helicopter Lifting Helicopter Lift Capacity Mining Helicopter Support Hot and High Operations Heavy Lift Planning

Browse by Topic

Topics on the Shelf

Part 133 (12) External Load (8) Density Altitude (6) External Load Operations (6) Lift Planning (6) Rigging (4) Aircraft Profiles (3) Aircraft Selection (2) Chinook (2) Congested Area Plan (2) Crane Comparison (2) Crane vs Helicopter (2)

New Analyses First

Get Each Entry the Day It Publishes

Cost breakdowns, capability tables, and regulatory explainers reach the mailing list the day they publish. Double opt-in, nothing else sent.