The East Pakistan Helicopter Service refers to the scheduled

helicopter services A helicopter is a type of rotorcraft in which lift and thrust are supplied by horizontally spinning rotors. This allows the helicopter to take off and land vertically, to hover, and to fly forward, backward and laterally. These attributes ...

operated by

Pakistan International Airlines Pakistan International Airlines ( ur, ; abbreviated PIA, ur, ) is an international airline that serves as the national flag carrier of Pakistan under the administrative control of the Secretary to the Government of Pakistan for Aviation. It ...

(PIA) in

East Pakistan East Pakistan was a Pakistani province established in 1955 by the One Unit Scheme, One Unit Policy, renaming the province as such from East Bengal, which, in modern times, is split between India and Bangladesh. Its land borders were with India ...

during the 1960s. It was one of the earliest air services of its kind in the world and one of the most extensive helicopter networks in history.

History

Pakistan's interest in helicopters for

civil aviation Civil aviation is one of two major categories of flying, representing all non-military and non-state aviation, both private and commercial. Most of the countries in the world are members of the International Civil Aviation Organization and work ...

began during American exploration of oil and gas in the remote areas of East Pakistan in the 1950s. In 1963, the national airline PIA (which evolved from the

Calcutta Kolkata (, or , ; also known as Calcutta , List of renamed places in India#West Bengal, the official name until 2001) is the Capital city, capital of the Indian States and union territories of India, state of West Bengal, on the eastern ba ...

-based

Orient Airways Orient Airways Ltd. ( ur, ) was an airline established in 1946 with its base in Calcutta, Bengal, British India. The airline shifted operations to the newly independent state of Pakistan in 1947, and was rechristened as Pakistan International A ...

) launched scheduled helicopter flights between

Dacca Dhaka ( or ; bn, ঢাকা, Ḍhākā, ), formerly known as Dacca, is the capital and largest city of Bangladesh, as well as the world's largest Bengali-speaking city. It is the eighth largest and sixth most densely populated city i ...

and regional cities. For short-haul operations in East Pakistan's

delta Delta commonly refers to: * Delta (letter) (Δ or δ), a letter of the Greek alphabet * River delta, at a river mouth * D (NATO phonetic alphabet: "Delta") * Delta Air Lines, US * Delta variant of SARS-CoV-2 that causes COVID-19 Delta may also re ...

region, PIA set up a network of scheduled helicopter routes, using

Sikorsky S-61 The Sikorsky S-61L and S-61N are civil variants of the Sikorsky SH-3 Sea King, SH-3 Sea King military helicopter. It was developed and produced by the American helicopter manufacturer Sikorsky Aircraft. The commercial version of the Sea King w ...

Ns. The first commercial flight took place on 25 November 1963. The first routes were between Dacca and

Khulna Khulna ( bn, খুলনা, ) is the third-largest city in Bangladesh, after Dhaka and Chittagong. It is the administrative centre of Khulna District and Khulna Division. Khulna's economy is the third-largest in Bangladesh, contributing $53 b ...

, the center of the East Pakistani jute industry; and between Dacca and Faridpur. The PIA S-61Ns were configured to carry a total of 24 passengers with four crew members and 1,800 lb of cargo. The first five pilots were trained with

British European Airways British European Airways (BEA), formally British European Airways Corporation, was a British airline which existed from 1946 until 1974. BEA operated to Europe, North Africa and the Middle East from airports around the United Kingdom. The a ...

(BEA) at a training facility in

Kidlington Kidlington is a major village and Civil parishes in England, civil parish in Oxfordshire, England, between the River Cherwell and the Oxford Canal, north of Oxford and 7 miles (12 km) south-west of Bicester. It remains officially a village ...

England England is a country that is part of the United Kingdom. It shares land borders with Wales to its west and Scotland to its north. The Irish Sea lies northwest and the Celtic Sea to the southwest. It is separated from continental Europe b ...

, where they learnt to fly the Brantly B-2 light helicopter. They then converted to S-61N at

Sikorsky Sikorsky or Sikorski may refer to: * Sikorsky (comics), a Marvel Comics character * Sikorsky (crater), a lunar crater * Sikorsky Aircraft, an American aircraft manufacturer People with the surname * Brian Sikorski (born 1974), Major League Basebal ...

's factory in

Connecticut Connecticut () is the southernmost state in the New England region of the Northeastern United States. It is bordered by Rhode Island to the east, Massachusetts to the north, New York to the west, and Long Island Sound to the south. Its cap ...

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...

. They returned to Pakistan for route flying on a Hiller UH-12E4 before delivery of the S-61Ns. The helicopter route to Khulna reduced the 21-hour journey overland to 37 minutes by air. 20 towns and cities covered by the network, including

Bogra Bogra ( bn, বগুড়া), officially known as Bogura, is a major city located in Bogra District, Rajshahi Division, Bangladesh. The city is a major commercial hub in Northern Bangladesh. It is the second largest city in Rajshahi Divi ...

Sirajganj Sirajganj ( bn, সিরাজগঞ্জ) is a city in north-western Bangladesh on the right bank of the Jamuna River. It is the administrative headquarters of Sirajganj District, and with a population of 167,200 is the fourteenth most populo ...

Chittagong Chittagong ( /ˈtʃɪt əˌɡɒŋ/ ''chit-uh-gong''; ctg, চিটাং; bn, চিটাগং), officially Chattogram ( bn, চট্টগ্রাম), is the second-largest city in Bangladesh after Dhaka and third largest city in B ...

, Mongla,

Kushtia Kushtia ( bn, কুষ্টিয়া) is a city in the Khulna Division of southwestern Bangladesh. Kushtia is the second largest municipality in Bangladesh and the eleventh largest city in the country. The second largest city in Khulna div ...

Barisal Barisal ( or ; bn, বরিশাল, ), officially known as Barishal, is a major city that lies on the banks of the Kirtankhola river in south-central Bangladesh. It is the largest city and the administrative headquarter of both Barisal Dist ...

, Chandpur,

Sandwip Sandwip ( bn, সন্দ্বীপ, Shondip) is an island located along the southeastern coast of Bangladesh in the Chattogram District. Along with the island of Urir Char, it is a part of the Sandwip Upazila. Description Sandwip is locate ...

and

Hatiya Upazila Hatiya ( bn, হাতিয়া) is an upazila (sub-district) of Noakhali District in Bangladesh's Chittagong Division. It encompasses several islands of Bangladesh, most notably Hatiya Island, Bhasan Char, Nijhum Dwip and Jahazir Char. ...

. The average price of a ticket was 25 rupees. It was the world's largest commercial helicopter network at the time. The only

air accident An aviation accident is defined by the Convention on International Civil Aviation Annex 13 as an occurrence associated with the operation of an aircraft, which takes place from the time any person boards the aircraft with the ''intention of fl ...

of the service involved Pakistan International Airlines Flight 17. PIA began switching to

fixed wing aircraft A fixed-wing aircraft is a heavier-than-air flying machine, such as an airplane, which is capable of flight using wings that generate lift caused by the aircraft's forward airspeed and the shape of the wings. Fixed-wing aircraft are distinc ...

for domestic operations in the late 1960s. In modern

Bangladesh Bangladesh (}, ), officially the People's Republic of Bangladesh, is a country in South Asia. It is the eighth-most populous country in the world, with a population exceeding 165 million people in an area of . Bangladesh is among the mos ...

, many airlines use

turboprop A turboprop is a turbine engine that drives an aircraft propeller. A turboprop consists of an intake, reduction gearbox, compressor, combustor, turbine, and a propelling nozzle. Air enters the intake and is compressed by the compressor. Fuel ...

planes for domestic operations.

Fleet

Accidents

On 2 February 1966 Flight 17, operated by a

helicopter, crashed on a scheduled domestic flight in

after the main gearbox failed, killing 23 of the 24 passengers and crew on board.UK CAA Document CAA 429 World Airline Accident Summary

Gallery

File:PIA helicopter Dacca.jpg, A PIA helicopter at

Dacca Airport Tejgaon Airport is a Bangladesh Air Force military base in Dhaka, Bangladesh. It served as the country's sole international airport prior to the construction of Hazrat Shahjalal International Airport. History The British had built military ai ...

References

{{Pakistan International Airlines Pakistan International Airlines Aviation in Bangladesh Helicopter airlines History of East Pakistan

History

Fleet

Accidents

Gallery

See also

References