The prototype Supermarine Seagull ASR.I, PA143, first flew on July 14, 1948.
The first Seagull in flight, in its original configuration, over Southampton and close to the site of the Supermarine works at Woolston.
PA143 in its original form seen from above
The first prototype of the Supermarine Seagull, PA 143, on water.
PA143 taking off, showing the semi-enclosed amphibian undercarriage.
PA143 taxiing with 4° wing incidence, with a 13kt wing on the starboard quarter. Turning on water proved to be one of the Seagull’s handicaps.
The first prototype of the Supermarine Seagull, PA 143, on land.
Supermarine Seagull amphibian PA 143 was flown by Jeffrey Quill and Mike Lithgow.
The first Seagull, PA143, taxies out at the SBAC Show of September 1948.
The same machine with wings folded and jury struts anchoring floats to the central pylon.
Supermarine Seagull first prototype, PA143, in its original configuration in 1948. Special feature of this amphibian was its variable-incidence wing
View of the second Seagull prototype (PA147), with the "2 1/2" fins and the dorsal fin.
Two shots of PA147 at the 1949 SBAC Show. Note extended pylon, central rudder and dorsal fairing.
The first Seagull (PA143) with modified rear nacelle fairing and small central fin.
Photograph of the first Supermarine S.14/44 (PA143), after a small central fin had been fitted and the engine nacelle had been extended aft.
The first Seagull (PA143) with enlarged central fin and smaller outboard fins; a small dorsal fin is also fitted.
PA143 in modified form in 1949 with central fin and rudder added and trunk extended rearwards
View of the second Seagull prototype (PA147), with the "2 1/2" fins and the dorsal fin.
PA147 at Sherburn-in-Elmet, July 1950, with larger central rudder but smaller ones on the tailplane tips.
Comparative views of PA143 with flaps up and wings at minimum incidence (top) and with flaps down and maximum incidence. By 1950, when these pictures were taken, a central fin had been added and the pylon fairing extended rearwards.
A wind-tunnel model of the Supermarine S.14/44, showing the original tail unit configuration.
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