Avro Jetliner
Encyclopedia
The Avro C102 Jetliner was a Canadian
Canada
Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

 prototype medium-range jet airliner
Jet airliner
A jet airliner is an airliner that is powered by jet engines. This term is sometimes contracted to jetliner or jet.In contrast to today's relatively fuel-efficient, turbofan-powered air travel, first generation jet airliner travel was noisy and fuel inefficient...

 built by Avro Canada
Avro Canada
Commonly known as Avro Canada, this company started in 1945 as an aircraft plant and became within thirteen years the third-largest company in Canada, one of the largest 100 companies in the world, and directly employing over 50,000...

 in 1949. It was beaten into the air by only 13 days by the de Havilland Comet
De Havilland Comet
The de Havilland DH 106 Comet was the world's first commercial jet airliner to reach production. Developed and manufactured by de Havilland at the Hatfield, Hertfordshire, United Kingdom headquarters, it first flew in 1949 and was a landmark in aeronautical design...

, thereby becoming the second jet airliner in the world, yet the name "Jetliner" was more catchy and for many years all such aircraft were colloquially given that name. The aircraft was considered suitable for busy routes along the US eastern seaboard and garnered intense interest, notably from Howard Hughes
Howard Hughes
Howard Robard Hughes, Jr. was an American business magnate, investor, aviator, engineer, film producer, director, and philanthropist. He was one of the wealthiest people in the world...

 who even offered to start production under license. However continued delays in Avro's all-weather interceptor project, the Avro CF-100, led to an order to stop working on the project in 1951, with the prototype Jetliner later cut up for scrap.

Genesis

In 1945 Trans-Canada Airlines (TCA) started exploring a number of aircraft developments under the direction of Jim Bain. A. V. Roe of England had recently taken over the Victory Aircraft
Victory Aircraft
Victory Aircraft Limited was a Canadian manufacturing company that, during the Second World War, built mainly British-designed aircraft under license. It acted as a shadow factory, safe from the reach of German bombers....

 "shadow factory" in Toronto, and starting exploring production possibilities with TCA for a two-engine turboprop aircraft like the Vickers Viscount
Vickers Viscount
The Vickers Viscount was a British medium-range turboprop airliner first flown in 1948 by Vickers-Armstrongs, making it the first such aircraft to enter service in the world...

. In the fall of 1945, Bain travelled to England to visit various aircraft companies, and during his exploration of Rolls-Royce
Rolls-Royce Limited
Rolls-Royce Limited was a renowned British car and, from 1914 on, aero-engine manufacturing company founded by Charles Stewart Rolls and Henry Royce on 15 March 1906 as the result of a partnership formed in 1904....

's engine department, saw the early work on what was then known as the AJ65. The new engine, later known as the Rolls-Royce Avon
Rolls-Royce Avon
|-See also:-Bibliography:* Gunston, Bill. World Encyclopaedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9-External links:**** a 1955 Flight article on the development of the Avon...

, enthralled Bain and on his return to Canada he changed plans for Avro's development to use the new engine instead of turboprops.

Over the next few months, the teams at TCA and Avro refined the requirements, which were signed off on 9 April 1946. They called for a 36-seat aircraft with a cruising speed of 425 miles per hour (684 km/h), a range of 1,200 miles (1,900 km), an average distance between stops of 250 miles (400 km) and longest single flight of 500 miles (800 km). The difference between the range and maximum airport distances was to allow for the required 45 minutes stacking and flight to get to a 120-mile (190-km) distant alternate airport in a 20 mph (30 km/h) headwind. The aircraft also needed to be able to operate from existing 4,000 ft (1,200 m) runways. Load was 12,700 lbs and 50 passengers.

The agreement also specified a number of contractual terms that, in retrospect, appear especially odd. In spite of TCA's experience with contracting for the Ministry of Transport, and Bain's personal arguments that cost-plus contract
Cost-plus contract
A cost-plus contract, also termed a Cost Reimbursement Contract, is a contract where a contractor is paid for all of its allowed expenses to a set limit plus additional payment to allow for a profit. Cost-reimbursement contracts contrast with fixed-price contract, in which the contractor is paid a...

s be used as a ward against budget overruns, TCA's contract with Avro demanded fixed prices for the entire development, as well as a fixed price for the aircraft of C$350,000. Additionally, Avro was not allowed to sell the aircraft to any other airline for three years. After that period, if a buyer paid less than C$350,000 for the aircraft, Avro would have to pay the difference to TCA. Furthermore, during the testing period of one year after the first aircraft was introduced, Avro would have to pay all costs, even if paying passengers were carried. Jack Dyment, chief of TCA's entire engineering department, suggested that Avro pay for the testing so that it would "permit us to learn how to successfully operate a jet aircraft without having to pay for such experience the hard way."

Design changes

In 1947, Fred Smye, president of Avro, advised Herbert James Symington
Herbert James Symington
Herbert James Symington, PC, CMG was a Canadian lawyer and businessman.From 1941 to 1947 he was president of Trans-Canada Airlines. He was the founding president of the International Air Transport Association....

 of TCA that they could not meet the fixed price contract. Symington's response was to pull out of the project, perhaps due to having successfully taken delivery of their new Canadair North Star
Canadair North Star
The Canadair North Star was a 1940s Canadian development of the Douglas C-54 / DC-4 aircraft. Instead of radial piston engines found on the Douglas design, Canadair employed Rolls-Royce Merlin engines in order to achieve a 35 mph faster cruising speed. The prototype flew on 15 July 1946 and...

s. C. D. Howe
C. D. Howe
Clarence Decatur Howe, PC , generally known as C. D. Howe, was a powerful Canadian Cabinet minister of the Liberal Party. Howe served in the governments of Prime Ministers William Lyon Mackenzie King and Louis St. Laurent continuously from 1935 to 1957...

 stepped in and offered $1.5 million to continue the project, at a slower pace. At about the same time, Rolls-Royce told Avro that the civil certification of the Avon could not be guaranteed in time for the Jetliner's rollout. This, in turn, would lead to higher operational and maintenance costs. Nevertheless, Avro continued with its plan to build the jet, selecting four Rolls-Royce Derwents to replace the two Avons.

Chief Designer James C. Floyd
James C. Floyd
James Charles "Jim" Floyd is a Canadian aerospace engineer, born in Manchester, England. Floyd was the Avro Aircraft Ltd. chief design engineer...

 was upset by these developments, but in the end found a number of advantages of the four-engine layout. The main advantage was that an engine-out situation, the aircraft would lose only ¼ of its thrust, rather than ½, which made power tolerances easier to meet. In particular, the asymmetry in thrust originally called for a powered rudder to correct for yaw in the case of an engine-out, but with four engines it was found the yaw was so small it could be correctly easily with just the manual trim controls.

Although bearing some resemblance to the Avro Tudor
Avro Tudor
Avro's Type 688 Tudor was a British piston-engined airliner based on their four-engine Lincoln bomber, itself a descendant of the famous Lancaster heavy bomber, and was Britain's first pressurised airliner...

 8 and 9 (which spawned the experimental
Experimental aircraft
An experimental aircraft is an aircraft that has not yet been fully proven in flight. Often, this implies that new aerospace technologies are being tested on the aircraft, though the label is more broad....

 Avro Ashton
Avro Ashton
|-References:NotesBibliography* Jackson, A.J. Avro Aircraft since 1908. London: Putnam Aeronautical Books, 2000 . ISBN 0-85177-797-X.* Winchester, Jim. X-Planes and Prototypes. London: Amber Books Ltd., 2005. ISBN 1-904687-40-7....

); from the outset, Floyd's design was conceived as a commercial jet airliner. The updated design was presented in October 1948, and in February 1948 TCA responded with changes of their own. Now they wanted the aircraft to cruise at 500 mph, and they increased the fuel requirements to allow for wider diversions. In April, Gordon McGregor took over the presidency of TCA, and told Smye that he did not want to be the first airline with a jet. Nevertheless, the project pressed on, and was the topic of a major article in Aviation Week that November.

The aircraft was scheduled to begin deliveries in May 1952, and enter service in October, which would have given it fully six years head start on the 707
Boeing 707
The Boeing 707 is a four-engine narrow-body commercial passenger jet airliner developed by Boeing in the early 1950s. Its name is most commonly pronounced as "Seven Oh Seven". The first airline to operate the 707 was Pan American World Airways, inaugurating the type's first commercial flight on...

, which did not enter service until October 1958, and more than 11 years on its top short-field competitor, the 727
Boeing 727
The Boeing 727 is a mid-size, narrow-body, three-engine, T-tailed commercial jet airliner, manufactured by Boeing. The Boeing 727 first flew in 1963, and for over a decade more were built per year than any other jet airliner. When production ended in 1984 a total of 1,832 aircraft had been produced...

. Its short-field performance exceeded the Caravelle
Sud Aviation Caravelle
The Sud Aviation SE 210 Caravelle was the first short/medium-range jet airliner produced by the French Sud Aviation firm starting in 1955 . The Caravelle was one of the more successful European first generation jetliners, selling throughout Europe and even penetrating the United States market, with...

 (with a comparable number of passengers).

Proposals exist for 30-, 40-, and 50-seat models, as well as 52- and 64-seat paratroop
Paratrooper
Paratroopers are soldiers trained in parachuting and generally operate as part of an airborne force.Paratroopers are used for tactical advantage as they can be inserted into the battlefield from the air, thereby allowing them to be positioned in areas not accessible by land...

 versions, high-altitude medical lab, photo reconnaissance, cargo, and crew trainer types. Given the difference in seat pitch at the time (compared to today), maximum capacity could readily have reached 100 even without a simple fuselage stretch.

Operational history

Two years later, the first prototype, CF-EJD (-X), began taxiing tests, and first flew on 10 August 1949, only 25 months after the design had started, and only 13 days after the first flight of the DH Comet. A delay caused by runway construction at the company's home Malton airport combined with repairs necessitated by external nacelle skin "buckling" prevented the Jetliner from being the first jet-powered airliner to fly. On its second flight, on 16 August, the landing gear failed to extend, and the Jetliner had to make a belly-landing. However, the damage was minor, and the aircraft was in the air again in three weeks.

In April 1950, the Jetliner carried the world's first jet airmail from Toronto
Toronto
Toronto is the provincial capital of Ontario and the largest city in Canada. It is located in Southern Ontario on the northwestern shore of Lake Ontario. A relatively modern city, Toronto's history dates back to the late-18th century, when its land was first purchased by the British monarchy from...

 to New York
New York
New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...

 in 58 minutes– half the previous record (c.340 miles, 352 mph). The flight was highly publicized and the crew was welcomed with a ticker tape parade through the streets of Manhattan. So new was the concept of jet power that the Jetliner was made to park far from the terminal, and pans were placed under the engines in case they dripped any "self-igniting fuel." The Jetliner suffered a mysterious "cracking" sound on the trip and was forced to stay on, as the pilots refused to fly it back. This delay allowed it to be presented to a number of potential customers, where it was competing against considerably slower designs like the DC-6
Douglas DC-6
The Douglas DC-6 is a piston-powered airliner and transport aircraft built by the Douglas Aircraft Company from 1946 to 1958. Originally intended as a military transport near the end of World War II, it was reworked after the war to compete with the Lockheed Constellation in the long-range...

 and war-surplus DC-3
Douglas DC-3
The Douglas DC-3 is an American fixed-wing propeller-driven aircraft whose speed and range revolutionized air transport in the 1930s and 1940s. Its lasting impact on the airline industry and World War II makes it one of the most significant transport aircraft ever made...

s. On its return, (on the back of a train), the "cracking" problem was traced to the spar area around the engines, which was made much stronger. It was later learned the problem was actually too-close tolerances between the engine nacelle and the spar, simply making a looser fit would have had the same effect.

At the time, in the mid-1950s, the Cold War
Cold War
The Cold War was the continuing state from roughly 1946 to 1991 of political conflict, military tension, proxy wars, and economic competition between the Communist World—primarily the Soviet Union and its satellite states and allies—and the powers of the Western world, primarily the United States...

 was starting and the Canadian authorities were in the midst of expanding the military. Avro was involved in designing the first dedicated jet-powered, all-weather fighter for the RCAF
Royal Canadian Air Force
The history of the Royal Canadian Air Force begins in 1920, when the air force was created as the Canadian Air Force . In 1924 the CAF was renamed the Royal Canadian Air Force and granted royal sanction by King George V. The RCAF existed as an independent service until 1968...

, the Avro CF-100
Avro CF-100
The Avro Canada CF-100 Canuck was a Canadian jet interceptor/fighter serving during the Cold War both in NATO bases in Europe and as part of NORAD. The CF-100 was the only Canadian-designed fighter to enter mass production, serving primarily with the RCAF/CAF and in small numbers in Belgium...

 Canuck. The project was somewhat delayed, although the company's continuing work on the Jetliner caused some controversy. After the prototype returned, it still had no immediate sales prospects, therefore C.D. Howe, (the "minister of everything"), ordered the program stopped in December 1951. The second prototype Jetliner, well on its way in the main assembly hangar, was broken up at that time.

Nevertheless, only a few months later, the enigmatic Howard Hughes
Howard Hughes
Howard Robard Hughes, Jr. was an American business magnate, investor, aviator, engineer, film producer, director, and philanthropist. He was one of the wealthiest people in the world...

 first learned of the design and leased the Jetliner prototype for testing, flying it for a few circuits when it arrived in Culver City, California. He became a believer, imagining TWA
Trans World Airlines
Trans World Airlines was an American airline that existed from 1925 until it was bought out by and merged with American Airlines in 2001. It was a major domestic airline in the United States and the main U.S.-based competitor of Pan American World Airways on intercontinental routes from 1946...

 and National delivering passengers from New York
New York
New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...

 to vacation spots in Florida
Florida
Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...

 in half the time of the competition. He became desperate to buy 30 Jetliners, but Avro had to repeatedly turn him down due to limited manufacturing capabilities and overwork on the CF-100 project. Hughes then started looking at US companies to build it for them; Convair
Convair
Convair was an American aircraft manufacturing company which later expanded into rockets and spacecraft. The company was formed in 1943 by the merger of Vultee Aircraft and Consolidated Aircraft, and went on to produce a number of pioneering aircraft, such as the Convair B-36 bomber, and the F-102...

 proved interested and started studies on gearing up a production line. C.D. Howe again stepped in and insisted that Avro concentrate on its Orenda turbojet
Avro Canada Orenda
The Avro Canada TR.5 Orenda was the first production jet engine from Avro Canada's Gas Turbine Division. Similar to other early jet engines in design, like the Rolls-Royce Avon or General Electric J47, the Orenda nevertheless outperformed its rivals in most ways, and the Orenda-powered Canadair...

 and CF-100 jet fighter programs.

The project was almost restarted in 1953, when CF-100 production was in full swing, but this never happened. In 1955, TCA ordered 51 Vickers Viscount
Vickers Viscount
The Vickers Viscount was a British medium-range turboprop airliner first flown in 1948 by Vickers-Armstrongs, making it the first such aircraft to enter service in the world...

 turboprop
Turboprop
A turboprop engine is a type of turbine engine which drives an aircraft propeller using a reduction gear.The gas turbine is designed specifically for this application, with almost all of its output being used to drive the propeller...

 aircraft from Vickers-Armstrong
Vickers
Vickers was a famous name in British engineering that existed through many companies from 1828 until 1999.-Early history:Vickers was formed in Sheffield as a steel foundry by the miller Edward Vickers and his father-in-law George Naylor in 1828. Naylor was a partner in the foundry Naylor &...

 in England. These were the first turbine-powered aircraft in regular service in North America. They continued in service until 1974.

Cancellation

The Jetliner was later used as the aerial photo platform for the CF-100 project. On December 10, 1956, the Jetliner was ordered surplused, and although it was donated to the National Research Council, they had no room for it in storage and took only the nose section for cockpit layout design. The rest of the Jetliner was cut up on December 13, 1956. The only surviving parts are the nose and cockpit section in the Canada Aviation Museum
Canada Aviation Museum
The Canada Aviation and Space Museum is Canada's national aviation history museum. The museum is located in Ottawa, Ontario, Canada, at the Ottawa/Rockcliffe Airport...

 in Ottawa
Ottawa
Ottawa is the capital of Canada, the second largest city in the Province of Ontario, and the fourth largest city in the country. The city is located on the south bank of the Ottawa River in the eastern portion of Southern Ontario...

.

Specifications Avro C102 Jetliner

Legacy

Canada Post
Canada Post
Canada Post Corporation, known more simply as Canada Post , is the Canadian crown corporation which functions as the country's primary postal operator...

 issued a stamp to commemorate the development of the Jetliner. Jetliner Road in Mississauga, Ontario is named for the airliner at Toronto Pearson International Airport
Toronto Pearson International Airport
Toronto Pearson International Airport is an international airport serving Toronto, Ontario, Canada; its metropolitan area; and the Golden Horseshoe, an urban agglomeration that is home to 8.1 million people – approximately 25% of Canada's population...

. "Avro Jetliner Private" also commemorates the aircraft at Ottawa McDonald Cartier International Airport.

See also

External links

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