Sikorsky S-61

The Sikorsky S-61L/N are civil variants of the successful Sikorsky SH-3 Sea King helicopter. They are two of the most widely used airliner and oil rig support helicopters built.

Variants

 * S-61L: Non-amphibious civil transport version. It can seat up to 30 passengers
 * S-61L Mk.II: Improved version of the S-61L helicopter, equipped with cargo bins.
 * S-61N: Amphibious civil transport version.
 * S-61N Mk.II: Improved version of the S-61N helicopter.
 * S-61NM: An L model in an N configuration.
 * S-61T Triton: S-61 modernized upgrade by Sikorsky and Carson; Upgrades include composite main rotor blades, full airframe structural refurbishment, conversion of folding rotor head to non-folding, new modular wiring harness, and Cobham glass cockpit avionics; initial models converted were S-61N.

Users

 * Canada
 * CHC Helicopters
 * Canadian Coast Guard
 * Cougar Helicopters
 * Helijet
 * Greenland
 * Air Greenland
 * Ireland
 * Irish Air Corps
 * Irish Coast Guard
 * Lebanon
 * Lebanese Air Force
 * Malaysia
 * Royal Malaysian Air Force
 * Netherlands
 * KLM Helikopters
 * Pakistan
 * Pakistan International Airlines
 * United Kingdom
 * Bristow Helicopters
 * British Airways Helicopters
 * British International Helicopters
 * Her Majesty's Coastguard
 * United States
 * AAR Corp
 * Carson Helicopters
 * Croman Corporation
 * Helicopter Transport Services
 * Los Angeles Airways
 * New York Airways
 * San Francisco and Oakland Helicopter Airlines
 * United States Department of State

Related Development

 * Sikorsky SH-3 Sea King
 * Sikorsky HH-52 Seaguard
 * Sikorsky S-61R
 * Sikorsky CH-124 Sea King
 * Westland WS-61 Sea King