(GRP) construction at Storebro started in 1954. Although Ivar Gustafsson did not like the plastic
material, it was recognized that certain parts were difficult to form in two directions with plywood. So they were looking for alternatives to wood construction particularly for small moldings.
At the time, Volvo developed the P1900 passenger car with plastic
body. Volvo then offered their best customer for boat engines the american plastic
experts of Glasspar (Santa Ana, CA), which were already paid but no longer needed, for the introduction in the GRP-processing.
Storebro accepted this offer and used the new technique for canopies, air scoops and other small parts.
Before Storebro started producing complete plastic
hulls, 1960/61 they tested the mixture of wooden hulls of boat building plywood, which received a plastic
cover. The test boats were built in different configurations - both as an open boat and with a cabin (see plywood/plastic boats
Unfortunately, the reservations against this technique were confirmed, so that the yard continued to rely on the construction of massive wooden hulls. Complete plastic
hulls were only manufactured from 1968 onwards. The first ship with a complete plastic
hull was the Royal Cruiser I/Solö Lyx II
In 1976 the Storebro Royal Cruiser 31
was introduced, whose superstructure was made of plastic
, in addition to the hull. Only the hardtop was still made in wood (sometimes painted in plastic
tone). The first ship, which was made entirely of plastic
, was then the Storebro Royal Cruiser 40
, which was presented in 1979.