Sikorsky S-55, S-58 and H-34: The Family Behind the S-58T
The S-55 led to the larger S-58 and military H-34 family. The turbine S-58T still appears in lift fleets, with payload limits tied to the aircraft and job.
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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.
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