Sud Aviation / Aérospatiale SA 321 Super Frelon — History, Specs & Stories

Super Frelon
Aircraft Museum · Helicopter · Super Frelon

Aérospatiale SA 321 Super Frelon
Europe’s Three-Engined Heavy Lifter

France’s three-engined giant set a world helicopter speed record in 1963, fought for Israel, Iraq and South Africa, guarded French missile submarines for decades and lived on in China as the Changhe Z-8.

1962First flight
about 110Built in France
350.4 km/hWorld speed record, 1963
27Equipped troops carried
Photo: Andrew Thomas from Shrewsbury, UK / CC BY-SA 2.0 via Wikimedia Commons
RoleHeavy transport, anti-submarine and anti-ship helicopterEra1960s to present (as the Z-8)Engine3 × Turbomeca Turmo IIIC turboshaftsOriginFrance · Sud Aviation, Aérospatiale; licence-built in China as the Changhe Z-8StatusIn limited serviceWant to fly a real military jet?

The Story

The Super Frelon: how France built Europe’s most powerful helicopter

In the late 1950s Sud Aviation was Europe’s most successful helicopter exporter, thanks to the Alouette, and it wanted a heavy machine to sit above its smaller types. Its first attempt, the SE.3200 Frelon, or hornet, flew in June 1958 but did not enter production when its French and German naval customers raised their requirements. The answer was the far bigger SA 321 Super Frelon: three far more powerful Turbomeca Turmo IIIC turboshafts, a six-blade main rotor of 18.9 m and a five-blade tail rotor designed with help from Sikorsky, and a main gearbox designed by Fiat. The fuselage was a boat hull with a planing bottom and watertight compartments, and a rear loading ramp opened onto a cabin for 27 troops or 15 stretchers.

The first prototype flew on 7 December 1962. On 23 July 1963 a modified Super Frelon flown by Jean Boulet and Roland Coffignot reached 350.4 km/h, setting an FAI absolute speed record for helicopters and two other international records. For a time it was both the most powerful helicopter built in Europe and the fastest in the world. West Germany, which evaluated it against the Sikorsky Sea King, lost interest, but France ordered it for its Pacific nuclear test centre and, above all, for the Aéronavale, which received its first anti-submarine SA 321G in October 1965. Two more prototypes flew in 1964, one dedicated to accelerated wear trials and the other to naval equipment.

Exports followed to Israel, South Africa, Libya, Iraq and China. Israeli Super Frelons flew in the Six-Day War, the War of Attrition and the Yom Kippur War; Iraqi ones fired Exocet missiles at shipping in the Iran-Iraq War; South African ones carried troops in the Border War. In France the type flew sanitisation patrols to protect departing ballistic-missile submarines, and later rescue missions, from Lanvéoc-Poulmic until 30 April 2010. Aérospatiale stopped production in 1981 after about 110, but China had already begun licence production as the Changhe Z-8, which first flew in 1985 and was still being developed in the 21st century. Few helicopters of its generation served so long.

Three turbines, a boat hull and a rear ramp: in 1963 it was the fastest helicopter in the world.Europe’s first heavy helicopter — From 1962 to the Changhe Z-8
01The Super Frelon at war: Israel, South Africa and the Tanker War

Israel ordered six SA 321K Super Frelons in 1965 for heavy-lift transport, and the first arrived on 20 April 1966 to form 114 Squadron at Tel Nof; six more were ordered the following year. An early plan to fly Panhard AML-90 armoured cars into airborne operations was abandoned when trials showed the helicopter could not lift the vehicle’s combat weight. Four Super Frelons were available for the Six-Day War of 1967, flying 41 sorties, and the type took part in raids of the War of Attrition, including Operations Helem, Tarnegol 53 and Rhodes. After the Yom Kippur War Israel re-engined the fleet with General Electric T58 turboshafts, flew it again in Lebanon in 1982, and retired it in 1991.

South Africa’s 16 SA 321Ls served with 15 Squadron from 1967. At least two supported Rhodesian operations in Mozambique in 1978 and 1979, and others helped evacuate paratroopers from Angola during Operation Reindeer. Iraq received 16 radar and Exocet-equipped SA 321Hs from 1977 and used them against Iranian shipping in the Tanker War. Two were shot down by Iranian fighters: one by an F-14’s AIM-54 Phoenix during Operation Pearl, and one by a Maverick missile from an F-4 Phantom in July 1986 as it tried to take off from an oil platform.

02The Super Frelon in China: the Changhe Z-8

Between December 1975 and April 1977 China received 12 navalised Super Frelons in anti-submarine and search and rescue versions. They were the first helicopters in the People’s Liberation Army able to operate from the flight decks of surface ships. With French help, China began licence production in 1976 as the Changhe Z-8. The first Chinese-built aircraft flew on 11 December 1985 and the type was certified on 12 November 1994. Naval Z-8s carried a French HS-12 dipping sonar, surface search radar and Whitehead A244S torpedoes, and were used for mine clearance, minelaying and anti-submarine work.

Army transport, search and rescue, medical and air force rescue versions followed, among them the Z-8A, Z-8S, Z-8JH and Z-8K. The 2008 Sichuan earthquake showed the value of a large rescue helicopter and gave production a major boost; the People’s Armed Police ordered 18, mostly for forest firefighting. A civil version, the AC313, with a 13.8-tonne maximum weight and 27 seats, first flew on 18 March 2010. In 2018 PLA Army Aviation announced that it would retire its Z-8s because of poor performance and high maintenance, but naval and other versions continued in service.


Design & Engineering

What makes the Super Frelon special

01

Three engines, one gearbox

The Super Frelon’s three Turbomeca Turmo IIIC turboshafts sit on the cabin roof, two side by side at the front and one behind the rotor, all feeding a single main gearbox designed by Fiat. Prototypes had about 1,320 shp per engine and production aircraft about 1,500 shp. Firewalls isolate each engine, and eight hinged doors give ground crews access without platforms. Three engines gave the margin of power needed for a heavy helicopter flying over the sea, far from any landing place.

02

A helicopter with a hull

The Super Frelon’s fuselage is a true semi-monocoque light-alloy hull, with a bow, planing bottom and watertight compartments, designed after studying American experiments with amphibious helicopters. Flight International described it as reminiscent of flying-boat engineering. Fuel sits in flexible cells in four watertight compartments under the floor. Naval versions added stabilising floats, and the boat-like shape gave crews a chance of surviving a ditching, a real concern for a helicopter that spent its life over the Atlantic and the Mediterranean.

03

A ramp at the back

A hinged rear loading ramp, which could be jettisoned in an emergency, opened onto a cabin for 27 equipped troops, 15 stretchers or bulky cargo. A crank in the tail boom lifted the tail rotor clear of vehicles approaching the ramp, and a hinge in the boom cut the folded length to about 18 m for shipboard stowage. A floor hatch near the rotor axis served slung loads. These features made it a genuine heavy transport as well as a submarine hunter.

03The Super Frelon’s naval kit: sonar, Exocet and the nuclear deterrent

The French Navy’s SA 321G was an anti-submarine helicopter, fitted with search radar and anti-submarine equipment. One of its most important jobs was the sanitisation of the approaches to the French ballistic-missile submarine base: before a Redoutable-class submarine sailed on deterrent patrol, Super Frelons searched for hostile submarines that might try to follow it. Some aircraft received nose-mounted radar for targeting Exocet anti-ship missiles, the same combination later exported to Iraq as the SA 321H.

Five SA 321Ga freighters, originally used in support of the Pacific nuclear test centre, were moved to assault transport duties. In 2003 the surviving Aéronavale aircraft were reassigned to transport, commando support, vertical replenishment and search and rescue, and they ended their careers with Flotille 32F at Lanvéoc-Poulmic in Brittany, retiring on 30 April 2010. Two Eurocopter EC225s were bought as stop-gaps until the NH90 arrived, ending the type’s long French career.


Technical Data

Aérospatiale SA 321G Super Frelon specifications

Specifications

Crew
5 (naval version); 3 (transport)
Capacity
27 equipped troops or 15 stretchers
Length
23.03 m (75 ft 7 in) rotors turning; fuselage 19.40 m (63 ft 8 in)
Main rotor diameter
18.90 m (62 ft 0 in)
Height
6.66 m (21 ft 10 in)
Empty weight
6,863 kg (15,130 lb)
Max take-off weight
13,000 kg (28,660 lb)
Powerplant
3 × Turbomeca Turmo IIIC turboshafts, about 1,100 to 1,160 kW (1,500 to 1,550 shp) each
Cruise speed
249 km/h (155 mph)
Range
about 820 to 1,020 km (510 to 635 mi); sources differ
Service ceiling
3,150 m (10,330 ft)
Armament
Naval versions: anti-submarine torpedoes or AM39 Exocet anti-ship missiles; transports usually unarmed

Costs & production

Cost per flight hour
No official figure. Hedged estimate: well above that of a medium twin, plausibly US$5,000–10,000 or more per hour in today’s money, given three turbines and a 13-tonne airframe; Israel retired its fleet in 1991 partly because of high maintenance costs
Production
About 110 built in France, 1962–1981 (figure commonly given, not firmly documented); further aircraft licence-built in China as the Z-8
Programme
First flight 7 December 1962; French Navy service October 1965 to 30 April 2010; production ended 1981
04The Super Frelon’s variants: from SA 321G to Z-8
  • SE.3200 Frelon: the smaller predecessor, with three less powerful Turmo IIIB engines and a four-blade rotor; two built, first flown 10 June 1958.
  • SA 321G: French Navy anti-submarine version; SA 321Ga utility and assault transport.
  • SA 321GM: Libyan version with search radar; SA 321M: Libyan search and rescue and transport.
  • SA 321H: Iraqi version with radar and Exocet missiles.
  • SA 321K: Israeli transport, later re-engined with General Electric T58s.
  • SA 321L: South African transport with air intake filters.
  • SA 321F and SA 321J: civil airliner and utility versions.
  • Changhe Z-8: Chinese licence-built naval version, first flown 1985, followed by Z-8A army transport, Z-8S and Z-8K rescue, Z-8JH medical versions and the civil AC313.
05The Super Frelon’s operating costs: why Israel let it go

No operator has published a cost per flight hour for the Super Frelon, so the figure in the table is an estimate based on its size and its three engines. What is recorded is how operators judged it. Israel retired its Super Frelons in 1991 because of their relatively high maintenance cost and poor performance compared with its Sikorsky CH-53s. In China, PLA Army Aviation announced in 2018 that it would retire the Z-8 for the same reasons, even though some airframes were only a few years old.

Yet the French Navy kept the type flying for 45 years, and China invested heavily in new versions after 2008. For navies needing a large, seaworthy helicopter with a ramp, the Super Frelon’s capability outweighed its running costs for decades, and in China the Z-8 family grew into army, rescue, medical, firefighting and civil versions.


Timeline

The Super Frelon from speed record to Changhe Z-8

1962

First flight

The first prototype flies on 7 December.

1963

World speed record

On 23 July Jean Boulet and Roland Coffignot reach 350.4 km/h.

1965

French Navy service

The anti-submarine SA 321G joins the Aéronavale in October.

1966

Israel

The first SA 321K arrives on 20 April and 114 Squadron forms at Tel Nof.

1967

Six-Day War and South Africa

Four Israeli Super Frelons fly 41 sorties; 15 Squadron SAAF reforms with the type in June.

1975

China

Deliveries of 12 navalised Super Frelons begin in December.

1977

Iraq

The first of 16 Exocet-armed SA 321Hs is delivered.

1981

Production ends

Aérospatiale closes the line for lack of orders.

1985

Changhe Z-8

The first Chinese-built Z-8 flies on 11 December.

1991

Israel retires the type

High maintenance costs and the CH-53 end Israeli service.

2008

Sichuan earthquake

Rescue work after the earthquake revives Z-8 production in China.

2010

French farewell

Flotille 32F retires the last French Super Frelons on 30 April.


Stories & Eyewitnesses

Stories & eyewitnesses: the Super Frelon from Brittany to the Persian Gulf

Record

The fastest helicopter in the world

In July 1963 a Super Frelon reached 350.4 km/h.

Read the full story
On 23 July 1963, only seven months after the first flight, Sud Aviation test pilots Jean Boulet and Roland Coffignot flew a modified Super Frelon to an FAI absolute helicopter speed record of 350.4 km/h. On the same programme they set records for speed over 3 km at low altitude, 341.23 km/h, and over a 100 km closed circuit, 334.28 km/h. For a heavy helicopter with three engines and a boat hull it was a remarkable demonstration, and it put Sud Aviation firmly on the international map.
People

A French helicopter with American and Italian parts

Sikorsky and Fiat helped shape the Super Frelon.

Read the full story
Sud Aviation was ambitious but pragmatic, and it looked abroad for the parts it lacked. For the Super Frelon’s new six-blade main rotor and five-blade tail rotor, it contracted Sikorsky, the American company with the greatest experience of large helicopters. Italy’s Fiat supplied the design of the main transmission. West Germany, which had shown early interest in the programme, evaluated the Super Frelon against Sikorsky’s own Sea King and its support for the French helicopter faded.
People

The armoured car that was too heavy

Israel hoped to fly AML-90s into battle.

Read the full story
When Israel ordered the Super Frelon, its planners hoped to use it to carry Panhard AML-90 light armoured cars into battle in support of paratroopers. Tests showed that the helicopter could not handle the vehicle’s combat weight, and the idea was dropped. The Super Frelons became troop and cargo carriers instead, and Israel later turned to the larger Sikorsky CH-53 for its heaviest lifting, while the Super Frelons served on for more than two decades.
Combat

Forty-one sorties in six days

Israel’s Super Frelons went to war barely a year after delivery.

Read the full story
Israel’s first Super Frelon had arrived only in April 1966. By the start of the Six-Day War in June 1967, only four of Israel’s Super Frelons had arrived at 114 Squadron. They flew 41 sorties during the war, in support of the ground forces. In the War of Attrition that followed, Israeli Super Frelons took part in commando raids including Operations Helem, Tarnegol 53 and Rhodes, and they served again in the Yom Kippur War of 1973 and the invasion of Lebanon in 1982 before retirement in 1991.
Combat

Beirut, December 1968

A raid that changed Israel’s choice of helicopter supplier.

Read the full story
In December 1968 Israel’s Super Frelons took part in a raid on Beirut. France condemned the operation, and Israel subsequently turned to the American Sikorsky CH-53 for its future heavy-lift needs rather than buying more French helicopters. The Super Frelons stayed in service through the War of Attrition and the 1973 war, after which they were re-engined with General Electric T58 turboshafts. They were finally retired in 1991, and examples are preserved today at the Israeli Air Force Museum at Hatzerim in the Negev.
Combat

Shots across the Zambezi

In 1978 a Super Frelon at Katima Mulilo sparked a border clash.

Read the full story
In August 1978 guerrillas of the South West African People’s Organization fired from Zambian territory on a South African Air Force Super Frelon as it landed at Katima Mulilo in the Caprivi Strip. South Africa retaliated with an artillery strike, which hit a Zambian Army position, turning a helicopter landing into a significant international border incident. South African Super Frelons also supported Rhodesian operations in Mozambique and helped evacuate paratroopers from Angola during Operation Reindeer, the 1978 cross-border operation.
Combat

Hunted in the Gulf

Iraq’s Exocet Super Frelons met Iranian F-14s and Phantoms.

Read the full story
Iraq bought 16 radar-equipped, Exocet-armed SA 321Hs from 1977 and used them against Iranian shipping in the Tanker War of the 1980s. Iran fought back. During Operation Pearl an Iranian F-14 Tomcat shot one down over the Persian Gulf with a long-range AIM-54A Phoenix missile, and in July 1986 an Iranian F-4 Phantom destroyed another with an AGM-65A Maverick as it tried to take off from an oil platform. At least one more was destroyed in the 1991 Gulf War.
Survivor

From Norway to East Timor

One civil Super Frelon had an extraordinary career.

Read the full story
One Super Frelon built in 1967 flew for Bergen Air Transport in Norway as LN-ORS and then for Kennecott Explorations in Papua New Guinea before reaching Indonesia in 1980 with Pelita Air Service as PK-PEF. In 1982 Pelita donated it to the Indonesian Air Force, which flew it, still in Pelita’s red and white, on troop and logistics missions during Operasi Seroja in East Timor. The airframe later decayed at Atang Sanjaya air base, but its engines are preserved at the Dirgantara Mandala museum in Yogyakarta.
Rescue

China’s earthquake helicopter

The 2008 Sichuan earthquake gave the Z-8 a new life.

Read the full story
When the Sichuan earthquake struck in May 2008, China’s large helicopters proved their value in rescue and relief. The experience gave Z-8 production a major boost, with new engines and design changes to cure long-standing problems. The People’s Armed Police ordered 18 Z-8s, most for forest firefighting units, and Z-8s flew rescue and logistics missions after later earthquakes. Firefighting has its own dangers: a Z-8AWJS crashed into Erhai Lake in Yunnan while scooping water to fight a mountain fire, killing two pilots.
Rescue

Brittany’s rescue giants

The last French Super Frelons flew search and rescue over the Atlantic.

Read the full story
In 2003 the Aéronavale’s remaining Super Frelons were reassigned from anti-submarine work to transport, commando support, vertical replenishment and search and rescue. Their last home was Flotille 32F at Lanvéoc-Poulmic, on the Crozon peninsula near Brest, from where they flew rescue missions over the Atlantic approaches. They were retired on 30 April 2010, after more than 44 years of French naval service, and replaced by two EC225s until the NH90 arrived. It was the end of the Super Frelon’s service in the country that designed it.

Gallery

The Super Frelon in pictures

Super Frelon
Super FrelonPhoto: Alan Wilson from Peterborough, Cambs, UK / CC BY-SA 2.0 via Wikimedia Commons
Super Frelon
Super FrelonPhoto: Ad Meskens You are free to use this picture for any purpose as long as you credi / CC BY-SA 4.0 via Wikimedia Commons
Super Frelon
Super FrelonPhoto: Duch / CC BY 4.0 via Wikimedia Commons

Operations

Where the Super Frelon flies and flew


Service Record

The Super Frelon’s record

The Super Frelon flew in the Arab-Israeli wars from 1967 to 1982, the South African Border War and the Iran-Iraq War, where Iraqi aircraft attacked shipping with Exocet missiles and at least two were shot down by Iranian fighters. In France and China its longest service was in anti-submarine and rescue work.

41Israeli sorties in the Six-Day War, 1967
16Exocet-armed SA 321Hs delivered to Iraq from 1977
1965–2010French Navy service

See how training and combat types compare in the military aircraft statistics database. Figures are approximate.


Questions & Answers

Everything people ask about the Super Frelon

Can I fly in a Super Frelon?
MiGFlug does not offer flights in the Super Frelon, but you can fly several genuine military jets today, from the L-39 Albatros to the MiG-21, see MiGFlug’s jet flights.
Why does the Super Frelon have three engines?
Three Turbomeca Turmo turboshafts gave a heavy helicopter enough power and a safety margin for operations over the sea, with two engines at the front and one behind the rotor.
Was the Super Frelon the fastest helicopter in the world?
Yes, for a time. On 23 July 1963 a modified Super Frelon set an FAI absolute helicopter speed record of 350.4 km/h.
What is the Changhe Z-8?
The Chinese licence-built version of the Super Frelon. China received 12 French-built aircraft from 1975, and the first Z-8 flew on 11 December 1985.
When did France retire the Super Frelon?
The French Navy retired its last Super Frelons from Flotille 32F at Lanvéoc-Poulmic on 30 April 2010.
How many Super Frelons were built?
About 110 are commonly quoted for French production, which ended in 1981, plus Chinese Z-8s built under licence.
Where can I see a Super Frelon?
Examples are preserved at the Israeli Air Force Museum at Hatzerim and at South African Air Force museum sites at Swartkop and Ysterplaat.

Sources & Further Reading

Every fact, checked