Experimental piggy-back long-range seaplane/flying boat combination, produced by the Irish-based British Short Brothers aviation company, to provide a reliable long-range air transport service to North America and, potentially, to other distant places in the British Empire and the Commonwealth.
The idea was based around the concept of aircraft having the capacity of maintain flight with a greater payload than that possible during takeoff, and so, it involved a small, long-range seaplane, the
Short S.20 Mercury, on top of a larger carrier aircraft, the Short S.21 Maia, using the combined power of both to bring the smaller aircraft to operational height, at which time the two aircraft would separate, the carrier aircraft returning to base while the other flew on to its destination.
The complexity of the whole operation, coupled with the arrival of bigger, longer-ranged boats, waned interest in the project, and the start of WW2, in which Maia was destroyed in a German air raid, killed it for good.
This Cant Z 506 photographed at Kalafrana, Malta, belonged to the Regia Aeronautica’s 139th Squadron RST. On July 29th, 1942 it rescued the crew of a Beaufighter but the English prisoners during the flight to Taranto overwhelmed the Italians and hijacked the aircraft to Malta. afterwards the plane was based at Alexandria. https://www.flickr.com/photos/amphalon/4351150352/in/photostream/
Curtiss SC-1 The end of the line for catapult launched “Scout Float Planes.” While the higher performing, thus “better” design, it arrived late. With the earlier Vought “Kingfisher” was more attractive, and as a “war bird,” one could take friends for the flight. The introduction of helicopters made the whole idea obsolete.