Introduced in 1977, the S-76 series has a long legacy of reliability and comfort. Originally built for the rigorous demands of the offshore oil market, its capabilities fit naturally into other market segments, such as executive transport, Airline and Emergency Medical Services.  In executive configuration the S-76 seats 6 passengers comfortably along with plenty of room for baggage. It has a cruise speed of 155 knots and range of about 350 miles with reserves. High density operators can seat as many as 12 persons on board.

The evolution of the S-76 models:

S-76A : Original production version, powered by two 485-kW (650-shp) Rolls-Royce (Allison) 250-C30 turboshaft engines. Large number modified to S-76A+. 284 manufactured.

S-76A++ : S-76 helicopters fitted with two Turbomeca Arriel 1S1 turboshaft engines.

S-76A Mk II : Improved all-weather transport version, fitted with a more powerful engines, and other detail improvements.

S-76B : Powered by two Pratt and Whitney PT6-B36A turboshaft engines. 101 built.

S-76C : Powered by two 539-kW (981-shp) Turboméca Arriel 1S1 turboshaft engines. 43 manufactured.

S-76C+ : Uprated version, fitted with improved Arriel 2S1 turboshafts with FADEC. 35 manufactured.

S-76C++ : Turboméca Arriel 2S2

Some details on the new: Sikorsky SK-76c++ from Sikorsky as well as the Legacy models:  SK_76 a,b,and c

As you can see the S-76A was the most popular model made followed by the S-76B which sports the much needed extra power of the PT6 engine.

IAS comments: We feel extreme well qualified to comment on this aircraft being as Bob and I were  pioneers flying the S-76A IFR in the northeast corridor. The S-76 is a highly desirable corporate helicopter with comfortable cabin, speed and range.

PREOWNED:We recommend the S-76B due to its increased power over the S-76A however if your operation does not require “Hot and Heavy” performance of an S-76B  an “A” model will suit you well.

NEW: The SK-76C++ is a fine aircraft, others to consider in this Category are the AgustaWestland AW-139

Ivan Klugman