TSGT Sator Sierra (“Sandy”) Sanchez (22 March 1921–15 March 1945)

“In what was to be the last picture ever taken of him, highly-decorated Staff Sergeant Sator Sierra “Sandy” Sanchez poses in Lucera, Italy, in March 1945.” (University of Texas at Austin, Moody College of Communication)

15 March 1945: Technical Sergeant Sator Sierra (“Sandy”) Sanchez, 353rd Bombardment Squadron (Heavy), 301st Bombardment Group (Heavy), 15th Air Force, based at Lucera Air Field, Italy, volunteered for his 66th combat mission. He flew as the top turret gunner of a Lockheed-Vega B-17G-25-VE Flying Fortress, 42-97683. The mission was to attack the Braunkohle-Benzin AG synthetic oil refinery at Schwarzheide, Ruhland, Germany.

A Lockheed-Vega B-17G Flying Fortress assigned to the 301st Bombardment Group, Heavy, Lucera, Italy, 1944. Note the letter “Y” at the top of the vertical fin. (U.S. Air Force)

Visibility was unlimited above a 10,000 foot (3,048 meters) 7/10th undercast. While approaching the target at about 1415 hours, the B-17 was attacked by fighters and anti-aircraft guns. Its number two engine (inboard, left wing) was damaged and caught fire. It could not be feathered. Fire spread all along the wing. The aircraft commander, 1st Lieutenant Dale Thornton, ordered the crew to abandon the aircraft. Nine of the crew were able to bail out, but with Sergeant Sanchez still aboard, the bomber pitched up, rolled over, then exploded. Sandy Sanchez was killed. His remains were never located. The survivors were captured and held as prisoners of war at Stalag Luft VI-A.

“At Bad Muskau, Germany, in April, 1996, World War II pilot Dale Thornton, second from left, and airmen from Spangdahlem Air Base cart part of the tail section of Thornton’s aircraft that was shot down at the end of the war to a nearby truck.” (Ken George/Stars and Stripes)

In 1993, four of the crew of 42-97693, pilot (former 1st Lieutenant) Dale Thornton, co-pilot (2nd Lieutenant) Edward Naracci, navigator (1st Lieutenant) Leslie J. Tyler and radar navigator (2nd Lieutenant) Stephen J. Stofko, returned to Germany to search for the crash site of their bomber. A portion of 42-97683’s vertical fin was found near Bad Muskau, Germany, near the border with Poland. It was recovered by the 52nd Equipment Maintenance Squadron, based at Spangdahlem Air Base, then placed in the collection of the National Museum of the United States Air Force.

Part of the vertical fin of Lockheed-Vega B-17G 42-97683, in the collection of the National Museum of the United States Air Force. (U.S. Air Force)

Sanchez’ final mission was flown during his third combat tour. After completing his first combat tour of 25 missions with the 334th Bombardment Squadron (Heavy), 95th Bombardment Group (Heavy), 8th Air Force, during which he had shot down six enemy fighters as a tail and top turret gunner, he volunteered for a second tour. (At that time, after completing 25 missions, bomber crew members in the 8th Air Force were rotated back to the Unites States for rest, recuperation and eventual reassignment.) He then flew 19 more missions. In addition to the six enemy aircraft destroyed, Sanchez was also credited with two probably destroyed and one damaged.

TSGT Sator Sierra (“Sandy”) Sanchez with Boeing B-17G 42-97290, “Smiling Sandy Sanchez.”

In recognition of his 44 combat missions, a brand new Boeing B-17G-45-BO Flying Fortress, 42-97290, was named Smilin’ Sandy Sanchez in his honor, and emblazoned with the number “44.” This was the first time that a bomber had been named after an enlisted man.

Technical Sergeant Sanchez was sent back to the United States as a gunnery instructor. Repeatedly volunteering for a third combat tour, he was returned to the European Theater of Operations, assigned to the 301st Bomb Group in Italy. He flew his 45th combat mission in November 1944.

Sergeant Sator Sierra “Sandy” Sanchez, U.S. Army Air Forces, circa 1943. (University of Texas at Austin, Moody College of Communication)

Sator Sierra Sanchez was born at Joliet Township, Illinois, 22 March 1921. His mother died of tuberculosis when he was two years old, and his father was shot to death when he was eight. He and his sister were raised by their stepmother until she also died in 1934.

In high school, “Sandy” Sanchez participated in the Junior Reserve Officers Training Corps (JROTC). After graduating, he worked in the Civilian Conservation Corps, then enlisted in the United States Army, 20 December 1939, at Camp McCoy, Wisconsin. He was assigned to the 7th Infantry Division. In May 1941, he was transferred to the Army Air Corps and trained as an aircraft mechanic.

On 14 March 1943, while working on the flight line at Merced Army Airfield, California, Sergeant Sanchez observed an empty, runaway Vultee BT-13 Valiant trainer. He ran toward it but was hit in the back by the airplane’s horizontal stabilizer. Trying again, he succeeded in climbing into rear cockpit. He shut off the engine and fuel and turned it away from a hangar filled with other aircraft and men. Although the BT-13 crashed into another airplane, undoubtedly Sergeant Sanchez had saved many lives. For this action he was awarded the Soldier’s Medal. This is the highest honor that a soldier could receive for valor in a non-combat situation.

When he completed training as an aerial gunner at Las Vegas Army Air Field, Sanchez was promoted to staff sergeant. He was then sent to England to serve with the 95th Bomb Group. He flew his first combat mission 15 September 1943 as the waist gunner of a B-17. After two missions he was assigned to the crew of Boeing B-17F 42-29943, Situation Normal.

Technical Sergeant Sator Sierra Sanchez, U.S. Army Air Forces. (Sanchez Family Collection)

On 10 October 1943, Staff Sergeant Sanchez flew as tail gunner on Situation Normal during an attack on Munster, Germany. He shot down a Messerschmitt Bf 109 and a Junkers Ju 88. Several members of the crew were wounded. Sanchez was awarded the Silver Star.

Boeing B-17F Flying Fortress 42-29943, “Situation Normal.” (American Air Museum in Britain UPL 15472)

Sandy Sanchez was promoted to technical sergeant 15 April 1944.

In addition to the Silver Star and Soldier’s Medal, Technical Sergeant Sandor Sierra Sanchez was awarded the Distinguished Flying Cross, the Purple Heart with one Oak Leaf Cluster (two awards, one posthumous), and the Air Medal with two silver and one bronze Oak Leaf Clusters (12 awards).

“Sandy” Sanchez sits on the nose of the B-17G Flying Fortress named in his honor.(American Air Museum in Britain UPL 19239)
Boeing B-17G-45-BO Flying Fortress 42-97290, BG H. (95th Bomb Group)

The B-17G named after Technical Sergeant Sanchez, 42-97290 (MSN 7792), was built Boeing’s Wichita, Kansas, Plant II. It was delivered to the United Airlines Modification Center at Cheyenne, Wyoming, 15 February 1944. It arrived at the staging base at Kearney Field, Nebraska,  27 February, 1944. On 11 March 1944, the B-17 was flown to Presque Isle, Maine, and then across the North Atlantic Ocean to England. Initially assigned to the 398th Bombardment Group at RAF Nuthampstead (USAAF Station 131), 22 April 1944, 42-97290 was transferred six days later to the 334th Bombardment Squadron (Heavy), 95th Bombardment Group (Heavy) at RAF Horham (USAAF Station 119), in East Anglia. It was given the squadron marking BG-H. On its twenty-third mission, 19 May 1944, Smilin’ Sandy Sanchez was damaged in combat near Berlin, Germany. The crew flew the bomber to Akesholm, Sweden, where they and the B-17 were interned. 42-92790 was later scrapped.

B-17G Flying Fortress heavy bombers at the United Airlines Modication Center, Cheyenne, Wyoming. (American Air Museum in Britain UPL 41030)

The B-17G on which Sanchez flew his final mission, 42-97683 (MSN 17-7048), had been built by the Lockheed-Vega Corporation at Burbank, California. It was delivered to the Continental Airlines Modification Center at Denver, Colorado, 26 January 1944, then on 7 March 1944, to the 1st Search and Attack Group (AAF Antisubmarine Command) at Langley Army Airfield, Hampton, Virginia, for crew training. (Presumably, the bomber was equipped with AN/APS-15 (H2X) ground-scanning radar.¹) Finally, on 7 April 1944, the bomber arrived at Grenier Army Airfield, Manchester, New Hampshire, to be ferried across the North Atlantic Ocean to England. On 8 April 1944, it was assigned to the 335th Bombardment Squadron (Heavy), 95th Bombardment Group (Heavy) at RAF Horham and given the squadron marking OE-M. As the lead airplane on an Operation FRANTIC IV shuttle bombing mission from Poltava Air Base (USAAF Station 559), Ukraine, USSR, to attack an airfield at Szolnok, Hungary, 18 September 1944, 42-97683 was was hit by anti-aircraft gunfire and damaged. Its number four engine (outboard, right wing) caught fire and failed. Four crewmen bailed out and were captured. The bomber continued on to Foggia, Italy, where it crash landed. After being repaired, on 28 October 1944, 42-97683 was assigned to the 352nd Bombardment Squadron (Heavy), 301st Bombardment Group (Heavy).

Camouflaged B-17s of the 335th Bombardment Squadron, 95th Bombardment Group. The airplane closest to the camera is B-17G 42-38140, “Dolly’s Daughter.” (American Air Museum in Britain UPL 19459)

The B-17G was the final production variant of the Flying Fortress. It entered service with the United States Army Air Forces in 1943.

The Boeing B-17G Flying Fortress was a four-engine heavy bomber operated by a combat crew of nine to ten men. It was 74 feet, 8.90 inches (22.781 meters) long with a wingspan of 103 feet, 9.38 inches (31.633 meters) and an overall height of 19 feet, 1.00 inch (5.187 meters). The wings have 3½° angle of incidence and 4½° dihedral. The leading edges are swept aft 8¾°. The total wing area is 1,426 square feet (132.48 square meters). The horizontal stabilizer has a span of 43 feet (13.106 meters) with 0° incidence and dihedral. Its total area, including elevators, is 331.1 square feet (12.18 square meters). The B-17G had an empty weight of 35,972 pounds (16,316.6 kilograms), and the maximum takeoff weight was 67,860 pounds (30,780.8 kilograms).

The B-17G was powered by four air-cooled, supercharged, 1,823.129-cubic-inch-displacement (29.876 liters) Wright Cyclone C9GC (R-1820-97) nine-cylinder radial engines with a compression ratio of 6.70:1. The engines were equipped with remote General Electric turbochargers capable of 24,000 r.p.m. The R-1820-97 had a Normal Power rating of 1,000 horsepower at 2,300 r.p.m. at 25,000 feet (7,620 meters), and 1,200 horsepower at 2,500 r.p.m. for Takeoff and Military Power. The engine could produce 1,380 horsepower at 2,500 r.p.m., War Emergency Power. 100-octane aviation gasoline was required. The Cyclones turned three-bladed, constant-speed, Hamilton Standard Hydromatic propellers with a diameter of 11 feet, 7 inches (3.835 meters) through a 0.5625:1 gear reduction. The R-1820-97 engine was 3 feet, 11.80 inches (1.214 meters) long and 4 feet, 7.10 inches (1.400 meters) in diameter, and weighed 1,315 pounds (596 kilograms).

Boeing B-17G-45-BO Flying Fortress 42-97246, from the same production block as “Smilin’ Sandy Sanchez”. (U.S. Air Force)

The B-17G had a cruising speed of 172 knots (198 miles per hour/319 kilometers per hour) at 10,000 feet (3,048 meters). The maximum speed was 285 knots (328 miles per hour/528 kilometers per hour) at 26,700 feet (8,138 meters). The service ceiling was 38,450 feet (11,720 meters) at maximum power.

The B-17G had a fuel capacity  of 2,780 gallons (10,523 liters) in twelve wing tanks. Two “Tokyo tanks” could be installed in the bomb bay, increasing capacity by 820 gallons (3,104 liters). The B-17G combat radius of 689 nautical miles (793 statute miles/1,276 kilometers) with max bomb load, and a maximum ferry range of 2,624 nautical miles (3,031 statute miles/4,878 kilometers).

The B-17G was armed with thirteen Browning AN-M2 .50-caliber machine guns for defense against enemy fighters. Power turrets mounting two guns each were located at the nose, dorsal, and ventral positions. Two guns could be installed in flexible mounts in the nose compartment, one in the radio compartment, two in the waist and two in the tail. 5,970 rounds of ammunition were carried.

The maximum bomb load of the B-17G was 12,800 pounds (5,806 kilograms). The internal bomb bay could be loaded with a maximum of ten 1,000 pound bombs,  eight 1,600 pound (725.75 kilogram) bombs or two 2,000 pound bombs. The physical size of each type limited the number that could be carried in the bomb bay.

The B-17 Flying Fortress was in production from 1936 to 1945. 12,731 B-17s were built by Boeing, Douglas Aircraft Company and Lockheed-Vega. (The manufacturer codes -BO, -DL and -VE follows the Block Number in each airplane’s type designation.) 8,680 of these were B-17Gs, with 4,035 built by Boeing, 2,395 by Douglas and 2,250 by Lockheed-Vega.

Boeing B-17G-45-BO Flying Fortress 42-97246, from the same production block as “Smilin’ Sandy Sanchez.” (U.S. Air Force)

A more complete report of Sator Sanchez’ life by Master Sergeant Barry L. Spink can be read at:

https://www.airuniversity.af.edu/Portals/10/AFEHRI/documents/HispanicAmericanAccomplishment/SatorSanchezWWIIGunnerandHero.pdf

In this grainy photograph of the crew of the Boeing B-17F Flying Fortress “Situation Normal,” Technical Sergeant Sator Sierra Sanchez may be the man standing at the left end of the back row. (American Air Museum in Britain UPL 19273)

¹ After transferring its antisubmarine warfare mission to the United States Navy’s Tenth Fleet in 1943, the 1st Search Attack Group conducted specialized training in low altitude bombing and H2X radar operations with the B-17 and B-24.

© 2023, Bryan R. Swopes

Air Force Cross, Chief Master Sergeant Dennis M. Richardson, United States Air Force.

Retired Brig. Gen. Frank Cardile (left) awards retired Chief Master Sgt. Dennis Richardson the Air Force Cross April 5, 2008 at the Francis S. Gabreski Airport in New York. (Staff Sgt. David J. Murphy, U.S. Air Force)

AIR FORCE CROSS

SERGEANT DENNIS M. RICHARDSON

The President of the United States of America, authorized by Title 10, Section 8742, United States Code, takes pleasure in presenting the Air Force Cross to Chief Master Sergeant (Retired), [then Sergeant] Dennis M. Richardson, United States Air Force, for extraordinary heroism in connection with military operations against an opposing armed force as Flight Engineer of an HH-3E Jolly Green rescue helicopter of the 37th Aerospace Rescue and Recovery Squadron, 3d Air Rescue and Recovery Group, DaNang Air Base, Vietnam, in action in Southeast Asia on 14 March 1968. On that date, Sergeant Richardson flew two sorties in an effort to rescue United States Air Force pilots who were surrounded by enemy troops along the Ho Chi Minh Trail. During the initial rescue attempt another helicopter had been driven off and Sergeant Richardson’s helicopter had itself sustained significant battle damage. Despite their situation, and with complete disregard for their own safety, Sergeant Richardson and his crew elected to return and make a second rescue attempt. Coming to a hover 10 feet above the survivor’s position, Sergeant Richardson stood fully exposed in the helicopter door and began lowering the jungle penetrator with one hand while gripping his M-60 machine gun with the other. Unknown to anyone, the enemy had occupied the area but held their fire, waiting to ambush the helicopter. Suddenly intense enemy fire erupted from all quadrants, resulting in additional damage to “Jolly Green 22” and wounding Sergeant Richardson. In an extraordinary display of courage and valor, Sergeant Richardson, despite his wounds, leaned far outside the door and neutralized charging enemy combatants who appeared intent on boarding the helicopter. Sergeant Richardson continued to lay down an effective blanket of defensive fire which enabled the pilot to maneuver safely out of the area. The selfless actions of Sergeant Richardson undoubtedly saved his helicopter and crew from certain disaster. Through his extraordinary heroism, superb airmanship, and aggressiveness in the face of a determined enemy, Sergeant Richardson reflected the highest credit upon himself and the United States Air Force.

Action Date: March 14, 1968

Service: Air Force

Battalion: 37th Aerospace Rescue and Recovery Squadron

Regiment: 3d Air Rescue and Recovery Group

Division: DaNang Air Base, Vietnam

A Sikorsky HH-3E Jolly Green Giant (66-13290) ot the 37th ARRS, hovering in ground effect at Da Nang, 1968. (U.S. Air Force)

Dennis Martin Richardson was born 29 December 1945 at Queens, New York. He was the son of John Joseph (“Jack”) Richardson and Nora Elizabeth Tuohy Richardson.

Richardson enlisted in the United States Air Force, 12 November 1964. He was trained as a helicopter mechanic, and was assigned as crew chief of a Bell UH-1F Iroquois (“Huey”) at Minot Air Force Base in North Dakota. During 1966, he served in Thailand with the 606th Air Commando Squadron. He was next assigned as flight engineer on the Sikorsky HH-3E Jolly Green Giant with the 37th Aerospace Rescue and Recovery Squadron at Da Nang Air Base, Republic of Vietnam.

Richardson returned to the United States and on 11 October 1968, left active duty.

On 30 January 1970, Richardson married Miss Deidre A. O’Brien at the Sacred Heart Church, Staten Island, New York. They would have five children.

Dennis Richardson joined the New York Air National Guard in 1975, serving as a helicopter flight engineer with the 106th Rescue Wing. He retired in 2005.

In addition to the Air Force Cross, during his service in the Vietnam War, Sergeant Richardson was twice awarded the Distinguished Flying Cross and the Purple Heart.

Chief Master Sergeant Dennis Martin Richardson, United States Air Force, died at Carmel, New York, 1 June 2016 at the age of 70 years. He was buried at the Long Island National Cemetery, East Farmingdale, New York.

This was the helicopter on which Sergeant Richardson served, 14 March 1968. The restored Sikorsky HH-3E Jolly Green Giant, 67-14709, on display at the National Museum of the United States Air Force. (NMUSAF)

The SH-3A Sea King (Sikorsky S-61) first flew 11 March 1959, designed as an anti-submarine helicopter for the U.S. Navy. The prototype was designated XHSS-2 Sea King. In 1962, the HSS-2 was redesignated SH-3A Sea King. Many early production aircraft were upgraded through SH-3D, SH-3G, etc. In addition to the original ASW role, the Sea Kings have been widely used for Combat Search and Rescue operations. Marine One, the call sign for the helicopters assigned to the President of the United States, are VH-3D Sea Kings.

The Sikorsky HH-3E (Sikorsky S-61R) is a development of the SH-3A. It earned the nickname Jolly Green Giant during the Vietnam War. It is a dedicated Combat Search and Rescue (CSAR) helicopter flown by the U.S. Air Force, based on the CH-3C transport helicopter. The aircraft is flown by two pilots and the crew includes a flight mechanic and gunner. It is a large twin-engine helicopter with a single main rotor/tail rotor configuration. It has retractable tricycle landing gear and a rear cargo ramp. The rear landing gear retracts into a stub wing on the aft fuselage. The helicopter has an extendable inflight refueling boom.

A Sikorsky HH-3E Jolly Green Giant refuels in flight from a Lockheed MC-130 Combat Talon. (U.S. Air Force)

The HH-3E is 72 feet, 7 inches (22.123 meters) long and 18 feet, 10 inches (5.740 meters) high with all rotors turning. The main rotor has five blades and a diameter of 62 feet (18.898 meters). Each blade has a chord of 1 foot, 6.25 inches (0.464 meters). The main rotor turns at 203 r.p.m., counter-clockwise, as seen from above. (The advancing blade is on the right.) The tail rotor also has five blades and has a diameter of 10 feet, 4 inches (3.150 meters). The blades have a chord of 7–11/32 inches (0.187 meters). The tail rotor turns clockwise as seen from the helicopter’s left. (The advancing blade is below the axis of rotation.) The tail rotor turns 1,244 r.p.m.

Beginning in 1928, an American food company began using a cartoon figure to advertise its "Green Giant" brand of canned peas. Eventually the mascot represented The Green Giant Company's other canned and frozen vegetables. The character is now owned by General Mills.
Beginning in 1928, an American food company began using a cartoon figure to advertise its “Green Giant” brand of canned peas. Eventually the mascot represented The Green Giant Company’s other canned and frozen vegetables. The character is now owned by General Mills.

The HH-3E has an empty weight of 13,341 pounds (6,051 kilograms). The maximum gross weight is 22,050 pounds (10,002 kilograms).

The Jolly Green Giant is powered by two General Electric T58-GE-5 turboshaft engines, which have a Maximum Continuous Power rating of 1,400 shaft horsepower, each, and Military Power rating of 1,500 shaft horsepower. The main transmission is rated for 2,500 horsepower, maximum.

The HH-3E has a cruise speed of 154 miles per hour (248 kilometers per hour) at Sea Level, and a maximum speed of 177 miles per hour (285 kilometers per hour), also at Sea Level. The service ceiling is 14,000 feet (4,267 meters). The HH-3E had a maximum range of 779 miles (1,254 kilometers) with external fuel tanks.

The Jolly Green Giant can be armed with two M60 7.62 mm machine guns.

Sikorsky built 14 HH-3Es. Many CH-3Cs and CH-3Es were upgraded to the HH-3E configuration. Sikorsky built a total of 173 of the S-61R series.

© 2019, Bryan R. Swopes

14 March 1908

A Voisin-Farman I bis at Le musée de l’Air et de l’Espace. (Wikipedia)
A Voisin-Farman I bis at Le musée de l’Air et de l’Espace. (Wikipedia)

14 March 1908: Henry Farman makes the the first flight in his modified Voisin-Farman I bis, an airplane built by the Appareils d’Aviation Les Frères Voisin, founded by brothers Gabriel and Charles Voisin at Billancourt, a suburb of Paris, France.

The Voisin-Farman I was a single-place, single-engine, two-bay biplane with the elevator forward and a “box kite” tail. It was 10.500 meters (34 feet 5.4 inches) long, with a wingspan of 10.000 meters (32 feet, 9.7 inches). The chord of each wing was 2.000 meters (6 feet, 6.7 inches), and vertical gap between the upper and lower wings was 1.500 meters (4 feet, 11.0 inches). There was no sweep or dihedral.

The complete airplane weighed 530 kilograms (1,169 pounds).

The Voisin-Farman I was modified. The wings’ dihedral was changed to improve stability and the span of the tail reduced. The Antoinette engine was replaced with a Renault rated at 50 horsepower, but was quickly changed back to the Antoinette. A tank containing crushed ice was added to the condensed steam cooling system, increasing the time the engine could be run. The modified airplane is known as the Voisin-Farman I bis (also known as the Henri Farman nº 1).

Two-view illustration of L’Aeroplane Henri Farmin no. 1, with dimensions. (l’Aerophile, 16* Annee, No. 3 1 February 1908, at Page 38/{BnF Gallica}

The airplane was powered by a steam-cooled, direct-injected, 487.14 cubic-inch-displacement (7.983 liter) Société Antoinette 8V 90° V-8 direct-drive engine producing 53 horsepower at 1,100 r.p.m. The engine turned a two-bladed pusher propeller. It was designed by Léon Levavasseur. The engine was 1.120 meters (3 feet, 8 inches) long, 0.630 meters (2 feet, 1 inch) wide and (0.540 meters (1 foot, 9 inches) high. It weighed 95 kilograms (209 pounds).

Charles Voisin and Henry Farman, 1907.
Charles Voisin and Henry Farman, 1907. (Unattributed)

© 2019, Bryan R. Swopes

13 March 1977

The number 2 Sikorsky S-76 makes teh type's first flight, 13 March 1977. (Sikorsky Historical Archives)
The number 2 Sikorsky S-76 prototype, s/n 76002, makes the type’s first flight, 13 March 1977. (Sikorsky Historical Archives)

13 March 1977: The protoype Sikorsky S-76A Spirit made its first flight at the company’s Development Flight Center, West Palm Beach, Florida (06FA). This was the number two aircraft, serial number 76002, registered N762SA. Sikorky’s chief pilot, John Dixson, and S-76 program test pilot Nicholas D. Lappos were in the cockpit.

Test pilot Nick Lappos is congratulated following teh first flight of the Sikorsky S-76, 13 March 1977. (Photograph courtesy of Neil Corbett, Test and Research Pilots, Flight Test Engineers)
Test pilot Nick Lappos is congratulated by His Majesty King Hussein bin Talal of Jordan following the first flight of the Sikorsky S-76, 13 March 1977. (Photograph courtesy of Neil Corbett, Test and Research Pilots, Flight Test Engineers)

The prototype was rolled out 11 January 1977.

The Sikorsky S-76 is a twin-engine medium helicopter designed to carry up to 12 passengers 400 nautical miles (460.3 statute miles, 740.8 kilometers) for the offshore oil industry. It is flown by two pilots and is certified for instrument flight. The helicopter can be configured to carry up to thirteen passengers.

The S-76 is used as a passenger transport, executive or VIP aircraft, and in law enforcement, search and rescue, or military service. It is also widely used as a medical transport helicopter.

Prototype Sikorsky S-76A rollout, 11 January 1977. (Sikorsky Historical Archives)

In 1979, Sikorsky proposed the new helicopter for consideration as the U.S. Coast Guard Short Range Recovery Helicopter, along with competitors Aérospatiale and Bell Helicopter. The S-76 was considered to be the most suitable of the three but the company made a business decision to withdraw before any contract was awarded. The Aérospatiale SA-365 Dauphin variant was finally selected and became the MH-65 Dolphin.

Air Logistics accepted the first Sikorsky S-76A production helicopter 27 February 1979. (Sikorsky, a Lockheed Martin Company)
Air Logistics accepted the first Sikorsky S-76A production helicopter, 27 February 1979. (Sikorsky, a Lockheed Martin Company)

The S-76A has an overall length of 52 feet, 6 inches (16.002 meters) with rotors turning, and overall height of 14 feet, 6 inches (4.420 meters). It had an empty weight of 7,132 pounds (3,235 kilograms) and a maximum gross weight of 10,500 pounds (4,763 kilograms).

The four-bladed, fully-articulated main rotor has a diameter of 44 feet, 0 inches (13.411 meters). The main rotor hub is constructed of forged aluminum and uses elastomeric bearings to allow for blade flapping and lead-lag. The blades are made of composite materials formed around a hollow titanium spar. The blade tips are swept to reduce the formation of blade tip vortices. Each blade is 19 feet, 11¾ inches long (6.090 meters). The main rotor turns counter-clockwise, as seen from above. (The advancing blade is on the right.) At 107% NR, the maximum speed with power on, the rotor turns 313 r.p.m.

A four-bladed tail rotor with a diameter of 8 feet, 0 inches (2.438 meters) is mounted on the left side of a pylon in a pusher configuration. The tail rotor turns clockwise as seen from the helicopter’s left. (The advancing blade is below the axis of rotation.)

A Turboméca-powered Sikorsky S-76C in flight over the City of New York. (Sikorsky, a Lockheed Martin Company)

The S-76A was originally powered by two Allison 250-C30 turboshaft engines mounted side-by-side, behind the main transmission. The engines were rated at 557 shaft horsepower (maximum continuous power). 100% torque is 564 foot-pounds. Later production models have used Turboméca and Pratt & Whitney Canada engines.

The S-76A has a cruise speed and maximum speed (VNE) of 155 knots (178 miles per hour/287 kilometers per hour). (The helicopter’s cruise speed is the same as its maximum.) The service ceiling is 15,000 feet (4,572 meters). The maximum altitude for takeoff and landing is 6,900 feet (2,103 meters).

Over a five-day period, 4–9 February 1982, Sikorsky test pilots Nicholas D. Lappos, William Frederick Kramer, Byron Graham, Jr., David R. Wright, and Thomas F. Doyle, Jr., set a series of twelve Fédération Aéronautique Internationale (FAI) speed, time-to-climb and sustained altitude world records while flying a Sikorsky S-76A helicopter, N5445J, at Palm Beach, Florida. These included an absolute world speed record for helicopters (186.69 knots/214.83 miles per hour/345,74 kilometers per hour). Nine of these records remain current.¹

In April 2020, new FAA regulations requiring crash-resistant fuel tanks for new-production aircraft took effect. Lockheed Martin decided not to invest in the engineering required to update the S-76. As such, the helicopter was no longer allowed to be sold in the United States. New Sikorsky S-76Ds continued to be sold to overseas customers. Later in the year, though, production came to an end.

876 Sikorsky S-76 were built. There were 307 S-76A and S-76A+ variants produced, followed by the S-76B, S-76C, -C+ and -C++. The final production model was the S-76D.

Sikorsky S-76D N7621Y, c/n 761021. (Sikorsky, a Lockheed Martin Company)

¹ See “This Day in Aviation” https://www.thisdayinaviation.com/4-february-1982/

© 2025, Bryan R. Swopes

13 March 1974

First flight, Bell 214A, Fort Worth, TX (Veriflite May/June 1974)

13 March 1974: First flight, Bell Model 214A… Test pilot Louis William Hartwig, co-pilot Bob E. Miller, flight test engineer Ron Magnusson.

The Bell 214A was developed from the prototype Bell 214 Huey Plus (which first flew in October 1970 and was powered by a 1,900-shaft horsepower Lycoming T53-L-702 turboshaft engine) for Imperial Iranian Army Aviation. Bell built three prototype 214As, powered by the Lycoming T55-L7C (2,050 shaft horsepower). One of these was shipped to Iran in August 1972 for evaluation.

The production 214A was powered by the Lycoming LTC4B-8D turboshaft, rated at 2,930 shaft horsepower.

Bell 214A Isfahan of the IRIAF, 6-4878 (MSN 27xxx), photographed at Zahhedan International Airport (ZAH), 20 May 2009. (© A. Mahgoli)

Iran ordered 287 Bell 214As. Iran named the Bell 214, “Isfahan,” after a city in Iran where it was planned to build a Bell helicopter production facility to produce additional 214A/Cs, and as many as 350 of the stretched twin-engine Bell 214STs.

The first production BH 214A, 6-4561 (Bell serial number 27004), was built in Texas and delivered in Iran on 26 April 1975. Three days later, flown by Major General Manucheher Khosrowdad, IIAA, and Bell assistant chief production test pilot Clem A. Bailey, 6-4561 set five FAI world records for time to height and altitude. The Bell 214A climbed to a height of 3,000 meters (9,842.52 feet) in 1 minute, 58 seconds; ¹ 6,000 meters (19,685.04 feet) in 5 minutes, 14 seconds; ² and 9,000 meters (29,527.56 feet) in 15 minutes, 5 seconds; ³ The helicopter reached a peak altitude of 9,071 meters (29,760.5 feet), setting a record for altitude without payload.⁴ It was able to maintain an altitude of 9,010 meters (29,560.4 feet) in horizontal flight.⁵

Bell 214A Isfhahan 6-4656. This is the fifth production BH 214A, manufacturer’s serial number 27009. It was photographed at Tabriz International Airport (TBZ) on 7 March 2023. Note the very large exhuast duct of the Lycoming 4B-8D turboshaft engine. (© Mehdi Piltan. Image used with permission.)

Because of the Iranian revolution of 1978–1979, the Isfahan facility was never built. All of the BH 214A/Cs and BH 214STs for Iran were built in Texas. Santions against the Iran regime have prevented any spare parts for these helicopters being delivered to Iran, but it is believed that that country has produced counterfeit parts. It is not known how many of these helicopters remain in service, but a 2018 estimate suggested just 22.

An unknown number of Bell 214As remain in service with the Islamic Republic of Iran Army Aviation. (Photo by IRIB via Scramble Dutch Aviation Society)

Bell went on to produce a commercial variant of the BH 214A, which it designated the Bell 214B BigLifter. This model received a FAA Type Certificate 27 January 1976. On 3 February 1976, a second model, the BH 214B-1, was also certified. The BH 214B-1 has a lower gross weight than the 214B, but the only actual difference between the two models is the aircraft data plate and the flight manual. This was done due to certification standards of various countries which would place the 214B in a “large helicopter” classification.

A Bell 214B BigLifter. (Business Jet Traveler)

Another commercial BH214 variant was also produced, the 214ST. Initially called the “Stretched Twin,” this helicopter featured two turboshaft engines, a 30-inch ( meters) increase in length, and a larger diameter main rotor system. Marketed as the 214ST SuperTransport, this helicopter could be ordered with either fixed skids or fixed tricycle landing gear. A total of just 96 were built, with 48 for Iran. The others were for commercial customers, or the militaries of several countries.

A Bell 214ST Super Transport, G-BKFN (manufacturer’s serial number 28109), of British Caledonian Helicopters, photographed 8 September 1982. (Wikipedia).

¹ FAI Record File Number 1850

² FAI Record File Number 1849

³ FAI Record File Number 1848

⁴ FAI Record File Number 1879

⁵ FAI Record File Number 9935

© 2024, Bryan R. Swopes