The generally accepted father of the flying boat is
Glen Curtiss, who flew a series of seaplanes in 1911, developed the first
practical float plane in 1912 and produced over 7,000 JN Jenny's in World
War I. Curtiss flying boats were the only US-designated airplanes to see
combat service in World War I. In 1919 the Navy-Curtiss 4, a huge flying
boat, made the first staged aerial crossing of the Atlantic a month before
Alcock and Brown's non-stop flight.
In 1912 a French industrialist, Jacques Schneider,
announced the Schneider Trophy, a seaplane competition to be held starting
in 1913. The first team to win three races in five years would keep the
trophy. Schneider hoped various clubs and individuals would enter the
competition, but after World War I nationalism became the dominant force
and when the series resumed in 1920 aircraft manufacturers' and
governments' resources poured into the race and the aircraft took on more
of a military nature. Schneider’s dream of seaplane development for
commercial travel faded away and speed became the dominant factor. The
race became a military testing ground, and in 1931 the British won the
trophy outright with the Supermarine S.6B, which was the basis for the
Spitfire that saved England in 1940.
The Schneider aircraft were all basically fighters on
floats, but although Schneider's dream may have been hijacked by the
military, the airlines still saw a huge potential in flying boats for long
haul travel. to the building, at Rochester In the late 1930s forty-two
Short Bros' S23 C Empire Flying-Boats were built at Rochester, England, to
service the last days of the British Empire. The luxurious service, never
to be matched, ended in June 1940, when the routes to the Empire were
finally severed. In addition to operating with the airlines Imperial
Airways, BOAC, Qantas and TEAL the big Sunderlands saw action with Allied
air forces.
On the other side of the Atlantic Pan-Am were sewing up
the transpacific routes with their equally large and impressive Clipper
fleet. In 1935, air travel had begun between Hawaii and the mainland by
Pan Am's China Clipper. Flight time from California to Honolulu was about
19 hours with one-way fare of $278. The first two trans-Pacific seaplanes
were the Sikorsky S-42 and the Martin M130, but they were superseded by
the Boeing B-314. It was delivered to Pan Am in January of 1939, and
christened the Yankee Clipper. The largest commercial plane* until the
arrival of the 747 some 30 years later, it was a feat of aeronautical
luxury, with seating for 74 passengers along with sleeping quarters for
36. There was even a honeymoon suite and separate dressing rooms for men
and women. Fresh food was prepared in the galley and served on linen
covered tables. Mid-ocean airports were created at Midway and Wake Island,
where Pan Am blasted out lagoons and shipped over prefabricated hotels.
Sadly, the Clippers' time was short, though - by the end of the war
landplanes had established dominance, with their increased range and speed
coupled with a world-wide network of airfields. The airlines' most
romantic chapter had drawn to a close.

The history of the Flying Boat
in Airline Service
The first seaplanes were glider designs
and were tested in the early 1900s although most did not fly. The first
flight of a powered seaplane was before the first world war and its
military potential was taken up. The first war brought the seaplane
design and engine design along quickly and the multi-engine flying boat
was designed and flown for military use. After the war the airlines began
new services...
Boeing B-1 1919
The Boeing B-1 was the first commercial
seaplane but it did not do well commercially due to the large amount of
ex-military float and sea planes available.

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Caproni triplane
1919
Possibly the first large flying boat
airliner to fly was the Caproni triplane which carried 100 passengers plus
6 pilots and flight engineers and was only 66 feet long. It had eight
engines but crashed into a lake on its second flight and the design was
abandoned.

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information
Levy Flying Boat
1919
Seaplane airline services were started
using small aircraft... Ligne Aerienne du Roi Albert (LARA) used a Levy
seaplane carrying a 2 passenger load around the Belgian Congo.

George-Levy 40 HB2 Two/Three-seat Flying Boat
with a 280 Renault 12Fe engine
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information
Curtiss F-5 1919
Aeromaritime Airways used a Curtiss F-5
between Florida and Havana.
By 1920 American Trans-Oceanic Company
used a flying boat out of Miami flying anglers to Bimini. The aircraft
was painted as a giant fish!

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for more information
Junkers F-13 -
Finnair 1926
Finnair began using Junkers F-13 and
Junkers Ju-24 floatplanes from 1926. Below is a Finnair F-13 floatplane.

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information
Short Calcutta -
Imperial Airways 1928
Imperial Airways introduced their first
flying boat, the Short Calcutta in 1928 for its empire routes. The three
engined aircraft flew the Mediterranean to Karachi leg of the UK-India
route.

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Short Kent - Imperial
Airways 1929
Imperial Airways introduced an improved
Calcutta style flying boat alongside the Short Calcutta. The four engined
Short Kent flying boat flew the Mediterranean to Karachi leg too and G-ABFB
is shown here.

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information
Fairchild FC-2 - Pan
American Airways
Pan American Airways (PAA) introduced
its first flying boat type on a new Miami to Havana route after it won the
Foreign Air Mail Route No.1. PAA leased a Fairchild FC-2 for this service
from 1920.

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information
Sikorsky S-34 1926
PAA used five Sikorsky S-34 amphibians
on load for testing from Sikorsky for possible use on their new Caribbean
routes in 1926. These were returned to the manufacturer after the trials.

Dornier Do.X - DLH
1926
Dornier had early ambitions at the
trans-Atlantic large flying boat and it flew the Dornier Do.X in 1926 on a
world-wide tour before it briefly flew with Deutsche Luft Hansa. The Do.X
had twelve Bristol Jupiter engines but was still underpowered for its
target 70 passengers on long-haul. It could only cruise at 135mph and had
a disappointing range of 1000nms. But for 1926 this was amazing even if
it was not quite what Dornier had hoped for! The aircraft had three decks
with smoking lounge, sleeping quarters and bar.

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information
Pan American Airways'
Miami base
PAA had a main flying boat base for
operations to Latin America at Miami in Florida.

Sikorsky S-38 (and
S-41) - PAA 1928
PAA decided that the S-34 was too small
and underpowered for its needs and when the Sikorsky S-38 twin engine
amphibian (picture) came along it purchased a small fleet of them in
1928. Sikorsky S-41s (modified S-38s) were also purchased.

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Consolidated
Commodore 1928
The first S-38 operator was NYRBA (New
York, Rio and Buenos Aires Line) who also used the Consolidated Commodore
flying boat on flights to Rio and Buenos Aires. In 1939 NYRBA was
acquired by Pan American Airways and the S-38 and Commodore seaplanes were
transferred to PAA's fleet. The Commodores opened up new long-haul
over-ocean routes for PAA with Charles Lindburgh flying most of the
proving flights.

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information
Savoia-Marchetti
Sm-66 1928
Savoia-Marchetti built the Sm-66
airliner for trans-Mediterranean airline services. It carried nine
passengers and was used from 1928 by Aero Expresso Haliano, ALA Littora
and Sociata Aerea Mediterranean - SAM.

Sikorsky S-40 'Flying
Forest' of PAA
In 1931 Pan American Airways introduced
the Sikorsky S-40 to fill the gap while the Martin M-130 was being built.
The S-40 was given the name 'Flying Forest' because it had struts
everywhere! These were part of a new design philosophy by Sikorsky to
make safer airplanes. It flew 32 passengers on average over about
1000nms. The S-40 was the first Pan American aircraft to be given the
'Clipper' name and the first S-40 was named 'American Clipper'. It
inaugurated the Miami - Panama route but it had to avoid night flying due
to lack of navigation aids and instrumentation.


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Sikorsky S-42 of PAA
- 1934
The sleek Sikorsky S-42 was introduced
by Pan American Airways in 1934 on the Buenos Aires route and quickly made
ten new records for altitude and for payload flights. It also carried 32
passengers on an average flight and had a longer range than the S-40.

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DLH ship-to-shore
mail flights - 1931
Deutsche Luft Hansa flew single engine
seaplane mail operations from 1931 using Heinkel He.12 and He.58s. They
were used on cruise ships and allowed the ship's mail to arrive on-shore
days before the ship actually arrived. These aircraft were replaced by
single-engine Junkers 46 floatplanes.

Heinkel He.12
Breguet Br.350 of Air
France
In 1934 Air France flew the Breguet 350
Saigon flying boat on a trans-Mediterranean service from France to
Mediterranean points.
DLH mail flights in
the South-Atlantic
With the success of the ship to shore
catapult mail flights DLH began trans-Atlantic mail flights from the mid
1930s from Europe to Latin America with a stop mid-Atlantic. The Dornier
Wal flying boat was used for this operation and it was met by a converted
cargo ship called a launch platform, picked up and refuelled. It then
departed on the launch ramp enroute. The Wals were replaced with Super
Wals. A Super Wal is on the Westfalen launch platform in this photo.

The Super Wals could deliver mail from
Germany to Brazil in three days. When the ship headed back to Brazil it
would bring mail from the Gambia. In 1936 Air France joined DLH in these
services rather than try to compete.

Dornier Do.26 of DLH
- 1937
The Luft Hansa trans-Atlantic mail run
saw new aircraft from 1937 with Blohm und Voss Ha-139s, Junkers Jumos and
the sleek Dornier Do.26. The Dornier Do.26 was s sleek four-engined
seaplane with retractable floats for extra speed. The engines were set
inline with two facing front and two facing back. Do.26 'Seeadler' D-AGNT
is shown here at V2 with the floats deployed. The rearward facing engines
are not easily visible.

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Sikorsky S-43 feeder
airliner of PAA
In 1934 PAA decided it needed a feeder
seaplane for short routes and low-passenger routes and the new Sikorsky
S-43 was the chosen type. The S-43 was also used by PANAGRA and Panair do
Brazil and the photo below shows a PAA aircraft.

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Martin M-130 of PAA
In 1935 PAA introduced three Martin
M-130 long-range flying boats with a range of 3500nms at 150mph. The
first one delivered was called 'China Clipper' and the PAA Martin 130 was
known from that point as the China Clipper although the other two Martin
boats had different names. In 1935 this type along with the S-42 began
trans-Pacific flights to China (San Francisco - Honolulu - Midway - Wake -
Guam - Hong Kong with a stop at Manila after PAA won the Foreign Air Mail
Route 42 for the Philippines. Regional services were flown on the Chinese
coast with Dolphin flying boats.

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information
Douglas Dolphin of PAA - 1935
Linking with the above San Francisco to
Hong Kong flights were a small fleet of PAA Douglas Dolphin amphibians
flying feeder services on the Chinese coast. These flights stopped in
1939 at the start of the US-Japanese war.

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information
Short S-23 Empire of
QANTAS - 1934
The British Empire routes were served by
TEAL (New Zealand), Qantas (Australia) and Imperial Airways (Britain)
during the 1930s with the Short S.23 Empire 'C' Class flying boat. The
Qantas Empires had names which began with 'C' to reflect the aircraft's
class. 'Cooee' is shown below. The Imperial Airways S.23s were ordered
when the Empire Air Mail Scheme came into force so that postage between
points in the British Empire would be cheap. These flew alongside the
QANTAS Empire boats. They flew a joint route from Southampton to
Brisbane.

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Consolidated PBY-5
Catalina 1937
Many airlines used amphibian flying
boats for flexible operations. The Consolidated PBY-5 Catalina was a
military aircraft that was used by many airlines during the war years.
QANTAS, Cathay Pacific and Panair do Brazil (shown below) are just three
of the airlines using it.

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information
Short Mayo Composite
aircraft - 1939
Imperial Airways tried an amazing
experimental long-range mail service to Canada in 1939. A Short S.21 and
a smaller floatplane were piggybacked to form a 'composite' aircraft
called a Short Mayo. The S.21 flying boat 'Maia' would be a launch
platform for the smaller 'Mercury', taking it up to its cruising altitude
before returning to Ireland. The smaller 'Mercury' then flew on to
Montreal non-stop.

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Short Empire of
Imperial Airways- 1939
The British Empire flying boats were
used by Imperial Airways (with a fleet of 26). In 1939 Imperial Airways
pioneered in-flight refuelling experiments took place over the English south
coast from Ford airfield. The photo below shows one of these flights with
Empire boat 'Cambria' (G-ADUV) being refuelled by an Armstrong-Whitworth
AW.23 bomber. In 1939 Imperial introduced the Short S.26 flying boat on
trans-Atlantic long-haul flights.

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Boeing model 314 of
PAA - 1939
PAA ordered the new Boeing model 314 in
1939 and flew it from New York to Lisbon in 27 hours. It carried 74
passengers in two decks. BOAC (formally Imperial Airways) also introduced
three of the aircraft. The prototype Boeing 314 is shown in this
beautiful photo...

Prototype Boeing 314

PAA Boeing 314
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information
Short Solent of TEAL
- 1946
The Short Solent was a civil conversion
from a military type, as was the Short Sandringham. It was used by BOAC
and by the New Zealand airline, TEAL (Tasman Empire Airways Ltd) and the
picture below shows a TEAL aircraft.

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information
Vought-Sikorsky
VS-44 1942
The Vought-Sikorsky Vs-44A was used by
American Export Airlines (later known as American Overseas Airlines) until
1949.

AEA's Vs-44A flying boats were sold to
Avalon Air Transport and one remained in airline service with this carrier
until 1967. The Avalon VS-44a is shown un-sticking in this photo...

Hughes HK-1 Hercules
(1930s)

The HK-1 was originally for military use
but was offered to the airlines as the H-4 when the military contract didn't come up
which is why it is featured here. If the trend toward landplanes had not
happened the Hercules may well have become part of the PanAm or TWA flying
boat fleet.
Made of Spruce wood and the largest
aircraft of its time it was called Spruce Goose by those who built it.
Howard Hughes flew the 'Spruce Goose' for a low-level first flight but it
never flew again.
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Saunders-Roe
Princess 1952
The Saunders-Roe Princess flying boat
was the last of the large flying boat airliners to be designed and along
with the Spruce Goose in the USA it was out of time. This beautiful photo
of the prototype Princess gives some idea of where airline flying boats
were going when the landplanes came of age. It was destined for BOAC on
the trans-Atlantic route from Southampton to New York carrying 105
passengers. Its ten Bristol Proteus engines were housed in six engine
nacelles with the outer nacelles having only one engine in each. It
didn't go into production and was scrapped in 1967.

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The End of an Era
The end of the flying boat airline era
came after the second world war. The flying boats were designed because
there were originally very few long runways that could handle a large
airliner. Also the navigation aids of the time were minimal and bad
weather often meant that planes had to land with a cross-wind. The
flying boat overcame all of these things neatly with ready made water
runways available all over the world.
After the war the world had a large
amount of landplanes (ex bombers and transports) and lots of concrete
runways on ex-military bases so it was natural that the airlines should
restart airline services with the DC-3s, DC-4s and DC-6s that were to be
purchased from the USAAF cheaply. Most post-war airlines restarted with
the Douglas C-47 (DC-3) Dakota in this way.