Bell 525 Relentless vs Cessna 208b Grand Caravan Ex vs Piper M600 Sls vs Sikorsky S 92

The Bell 525 Relentless is a modern, fly-by-wire twin‑engine helicopter aimed at corporate and offshore missions, typically carrying about 12–16 passengers with a practical range roughly in the 500–600 nm class, depending on configuration. The Sikorsky S‑92 is a larger, heavy twin helicopter used heavily for offshore and SAR roles; it generally carries about 19 passengers and offers a broadly similar or somewhat greater mission range (often around 500+ nm) but with higher payload and cabin volume. By contrast, the Cessna 208B Grand Caravan EX is a single‑engine turboprop utility airplane optimized for short/rough-field work, usually seating 9–14 passengers, with range commonly around 800–900 nm. The Piper M600 SLS is a pressurized, single‑engine turboprop personal/business airplane in a much smaller category, typically seating 4–6 passengers, and it offers the longest range of this group—roughly around 1,000–1,400 nm—at higher cruise speeds than the Caravan.