Please click on any of the coded models listed on the pages below to learn more about its background and why it came into being, its special features, its specifications and its production history. The following lineage charts are organized in groups:

Historical Essays

Birth of the VS-300 Helicopter

Paper presented by Igor Sikorsky to the Institute of the Aeronautical Sciences. He describes the evolution of the VS-300 configuration and his unique propulsion and flight control systems. Mr. Sikorsky also describes his history-making flights. It concludes by summarizing his vision of the helicopter's impact on the future of aviation.

The 100th Sikorsky R-4B Helicopter

The 100th R-4 helicopter was delivered to the US Army Air Force On December 29, 1944. The R-4 model was the world's first production helicopter that started the helicopter industry. This is a collection of photographs of Sikorsky Aircraft managers and pilots taken on that day to commemorate this historic event.

Development of the Helicopter as an Anti-Submarine Weapon

When German submarine attacks reached their peak in 1942, the Coast Guard recognized that the Navy's greatest problem was in finding them. Successful testing of dipping sonar on helicopters in 1944 soon led to operational capability with weapons to destroy submarines. This started the Coast Guard/Navy development of ASW/Rescue helicopter mission techniques. Mr. Sikorsky’s son, Sergei was a member of this unit (1943-1946.)

First Military Uses of the R-4

Harmon Field Air Depot served to repair aircraft based on Guam and other Pacific islands during World War II. The R-4 delivered spare parts for these aircraft from ships to whichever island base needed them. That probably was the origination of the Navy's important Vertical Onboard Delivery mission

First Helicopter Civilian Rescue

On November 29, 1945 a rescue operation was launched off the Connecticut coast during a raging northeast storm over Long Island Sound. A Sikorsky R-5 was sent out to save two crewmen on a barge that was being blown toward the rocks at Penfield Reef. This essay describes that first helicopter rescue and how it set the stage for over three million people who owe their lives to helicopter rescue operations worldwide.

First Helicopter Naval Rescue

The first U.S.N. rescue at sea of a pilot by helicopter took place on February 1947 from the Aircraft Carrier USS Roosevelt in the Caribbean. The Sikorsky S-51, piloted by Sikorsky Chief Pilot Jimmy Viner, successfully demonstrated the helicopter rescue capabilities which lead the U.S.N. selecting the helicopter for plane guard missions. This essay covers this mission in detail..

The ABC High Speed Helicopter

High speed flight has always been a challenge for the conventional helicopter. This essay explains how that limitation was overcome with a new helicopter design called the Advancing Blade Concept (ABC). Achievement of 250 knot speed by the Sikorsky X2 and award of the 2010 Collier Trophy are mentioned.

Sikorsky Utility Helicopters - A Hard Beginning

The utility helicopter with a spacious cabin has been the mainstay of Sikorsky production since the 1950’s that includes the S-55, S-58, S-61, S-70, S-76 and S-92. The transition from the small R-4, R-5 and R-6 models was far more difficult and far more dependent on design creativity than imagined.

Restoration of the VS-44A Flying Boat

The VS-44A was Igor Sikorsky’s last flying boat. Three were built, purchased by American Export Airlines (AEA), and dubbed the “Flying Aces”. They were flown under U.S.N. contract during WWII and later commercially. The sole surviving VS-44A, the Excambian, was masterfully restored by Sikorsky Aircraft retirees

Timely Culture Change Helps Win BLACK HAWK

Here's a fascinating story of how Pratt &Whitney, Hamilton Standard, Sikorsky and others were initially part of a larger company which also included Boeing and United Airlines; and how the federal government broke the company up during the depression because they thought it was a monopoly. The reaction influenced the entire history of Sikorsky, including how we won the BLACK HAWK program

Igor Sikorsky Honored with a permanent memorial by the Trumbull Connecticut Historical Society with assistance od the Igor Sikorsky Historical Archives.

The three sided memorial presents the aviation career of Igor Sikorsky during his years in Russia and the United States. The memorial is located in Abraham Nichols park on Shelton Road, Trumbull. Each of the three panels may be viewed by clicking on the appropriate link here-in and clicking on the opened image to enlarge for reading..

*Panel one
*Panel two
*Panel three
for addition reading go to: Newletter Jan 2016