| Notes:
At the 50's De
Havilland Comet was a real revolution at
the field of commercial airplanes as it
was the first civil aircraft with jet
engines. That aircraft was very good but
after some time problems came up, problems
that hurt its reliability. So, American
manufacturers found space to move and
create their own commercial jet airplanes.
Boeing created the legendary 707 and
Douglas the DC-8 but there was still great
need in jet planes.
The
passengers were able to pay something more
to travel with speed and luxury. So,
Howard Hughes, an eccentric shareholder of
TWA, gave the idea to Convair to create a
new jet plane that could carry passengers
at high speeds and with comfort. Hughes
also promised that TWA would buy a large
number of these revolutionary aircraft.
The
negotiations between Hughes and Convair
were very difficult because Hughes wanted
them to take place in secret locations and
in strange times! Due to these peculiar
factors the result of the negotiations was
few aircraft sales. Despite that, Convair
was convinced that with the support of
Hughes, it could start the design of the
Model 22 (Convair 880).
The first
plans of Convair were to design an
aircraft that would have golden paint
instead of the classic silver. That's why
the company would call this aircraft
“Golden Arrow” and that would be the
aircraft's trademark. Painting the
aircrafts with gold paint was so difficult
that Convair changed its plans without
mentioning that. The new plane had 4
engines that could allow it to be one of
the fastest planes.
At first,
Convair 880 would use the Pratt & Whitney
J57 but they were rejected and the
aircraft decided to use the General
Electric CJ-805, a civil version of the
military engine J79 which was placed at
the Convair B-58 Hustler. The new plane
should be able to land and take off from
small runways (about 5,000ft). Its speed
was over 990km/h, making it one of the
fastest planes ever. In addition, it had 5
seats at each row, instead of the 6 seats
per row of the competition, one of the
conditions of Hughes, something that
increased the comfort but also the cost of
every passenger per mile. The first
delivery was done in January 1961 with 1,5
years delay.
TWA ordered
about 30 aircrafts but while 18 of them
were under construction, the airline
announced that it couldn't pay Convair!
That problem was solved and TWA obtained
27 aircrafts. The problem was that the
orders were not enough and Convair was
selling the aircraft at a very low price
that was not able to cover the cost for
its construction! Convair managed to sell
only 47 aircrafts in the USA and should
find new customers from abroad. Cathay
Pacific, Japan Airlines and other airlines
showed interest but finally, only 65
planes were constructed. It was then that
Convair made another mistake by promising
to American Airlines to develop an
improved version of 880 for an order of 25
aircrafts, the Model 30 (Convair 990).
The new
aircraft was using improved engines, the
General Electric CJ-805-23B. Convair
promised that the 990 would have maximum
speed of 1,116km/h. The plane was designed
with modern techniques so as to decrease
the drag force. Simultaneously, measures
were taken in order to increase the range
of the aircraft. Despite the promised
performance, only American Airlines,
Swissair, SAS and Varig ordered it.
When the
first 990's were completed in 1961, the
results were disappointing. The aircraft
didn't have the expected performance. The
airlines were annoyed with that and SAS
cancelled the order. The plane didn't have
enough range (not even for a flight form
the western coast of USA to the eastern)
and speed was not the promised one. So,
Convair had to urgently do something to
fix the problems. So, the company did many
modifications to the aircraft and informed
the companies that in a year the aircraft
would have the suitable performance.
American Airlines used 20 aircrafts,
instead of the 25 ordered, Swissair used 8
and Varig 3. Only 35 Convair 990 were
constructed (including aircrafts that were
not delivered) and the last commercial
flight of the type was done in 1987.
Convair
lost in the programme of 880/990 more than
450 million dollars in 1962 prices! That
price was a quarter of the total value of
the company! The damage was very big.
Despite that, Convair 880/990 was included
at the best planes ever created! Their
comfort, high speed and reliability made
them very popular and every pilot wanted
to fly them.
Courtesy
Dimitris Papadogiannis |