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: Load Classes · Clear filter

Operations · Jul 22, 2026 · 13 min

FAA Part 133 Explained: The Complete Guide to Rotorcraft External-Load Operations

Every US commercial helicopter lift flies under 14 CFR Part 133. The 24-month certificate, load classes A to D, and congested area rules, decoded.

Part 133 FAA Regulations External Load Load Classes Human External Cargo Certification

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.