Bristols Helicopters Sikorsky S-92A aircraft over Inverness Airport in North East Scotland.
The S-92 is multi-purpose helicopter powered by twin GE CT7-8A turboshaft engines and has an aluminum airframe and some composite components. The four-bladed fully articulated composite main rotor blade is wider and has a longer radius than the Sikorsky S-70. The tapered blade tip sweeps back and angles downward to reduce noise and increase lift. Most of the rotor system components aside from the blades are titanium. The S-92 features an active vibration control system, using vibration sensors and structurally mounted force generators to increase flight comfort and lower acoustic levels to below certification requirements. A 2008 study by Norway's Flymedisinsk Institute found that the S-92's vibration levels were 42 percent above that of the Eurocopter EC225 Super Puma; Sikorsky disputed this finding, saying that the study hadn't used their latest anti-vibration technology. In February 2011, the noise and vibration levels were reportedly subject to health concerns, allegedly causing tinnitus and heart problems. A number of safety features such as flaw tolerance, bird strike capability, and engine burst containment have been incorporated into the design. Adherence to FAA FAR part 29 has led the FAA certification board to call the S-92 the "safest helicopter in the world".The S-92 reportedly met the FAR part 29 "run dry" requirement by asserting the loss of oil pressure in the main gear box is "extremely remote".
Size: 5686px × 4304px
Location: Inverness Dalcross Airport, Highland Region. Scotland. United Kingdom.
Photo credit: © David Gowans / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: &, (190, -92, -70, -92a, -92c, -bladed, 2, 19, 22, 151, 165, 174, 520, 733, aft, aircraft, airliner-type, area, aviation, built, cabin, capacity, civil, civilian, compartment., control, crew, cruise, ct7-8a, developed, development, electric, flight, ft, full, general, helibus., helicopter, interior, kn, knots, located, market., maximum, medium-lift, military, mph, north, number, oil, parts, passengers, passengers., pilot, platforms, powerplant:, ramp, ramp., rear, referred, rotor, sea, seats, side-facing, sikorsky, similar, speed:, sq, systems., transport, turboshaft, twin-engine, utility, variant, version, versions., width, workers, ×
