Bell 525 Relentless vs Cessna 208b Grand Caravan Ex vs Piper M600 Sls vs Robinson R66

The Bell 525 Relentless is a large, twin‑engine helicopter aimed at offshore and corporate missions, carrying roughly 16 passengers with a typical range in the ~500–600 nautical mile class. The Robinson R66 is a light, single‑engine helicopter for utility and private travel, usually seating about 4–5 people with a much shorter range, roughly ~300 nautical miles. The Cessna 208B Grand Caravan EX is a single‑engine turboprop utility airplane built for short‑haul cargo and commuter work, commonly configured for about 9–14 passengers and offering longer range than the helicopters, generally around ~900–1,000 nautical miles depending on payload. The Piper M600 SLS is a pressurized, single‑engine turboprop personal/business airplane, seating typically 4–6 passengers, with range also around ~1,000 nautical miles, trading the Caravan’s volume and payload flexibility for higher speed and a more executive cabin. Overall, the 525 leads in helicopter capacity and capability, the Caravan in payload-oriented utility, the M600 in owner-flown business travel, and the R66 in economical light-helicopter access.