LAPEROUSE preferred boat transport rather than a warship for shipment around the world. Holds, larger for holding food and equipment to interact with the island. Among the vessels Rochefort, he opted for a glass of 400 to 500 tons the "porters" (41 meters long) and fit in BREST arm and added a windmill to provide the flour fresh crew .
LAPEROUSE commanded the BOUSSOLE and appoints the Knights of Clonard, he left Brest with ASTROLABE on 1 August 1785 for four years around the world with 112 crew; objective discoveries of distant lands, vast scientific studies (science natural, anthropology, oceanography, meteorology, and bathymetric mapping ...)