Bell 525 Relentless vs Piper M600 Sls vs Sikorsky S 92

The Bell 525 Relentless and Sikorsky S-92 are twin‑engine helicopters, while the Piper M600 SLS is a single‑engine turboprop airplane, so they fit different mission profiles. In category terms, the 525 is a modern “super‑medium” helicopter aimed at offshore, corporate, and public service roles; the S‑92 is a larger, heavy twin used widely for offshore transport, search and rescue, and utility missions; the M600 SLS is a pressurized personal/business aircraft optimized for point‑to‑point travel. On range, the Piper M600 SLS typically offers the longest point‑to‑point range (roughly around 1,000–1,500 nm depending on configuration and reserves), reflecting the efficiency of fixed‑wing cruise. The Bell 525 generally provides medium helicopter range (on the order of several hundred nautical miles, often cited around ~500 nm class), while the Sikorsky S‑92 is comparable or somewhat shorter/mission‑dependent, commonly in the few‑hundred‑nautical‑mile range with reserves. For passenger capacity, the M600 SLS is usually configured for about 5–6 passengers plus a pilot. The Bell 525 is commonly configured around the mid‑teens (about 12–16). The S‑92 typically carries the most, often around 16–19 passengers in transport layouts.