shakedown cruise
test phase of a newly built or renovated watercraft to verify the vessel's readiness for service
en-US/ˈʃeɪkˌdaʊn ˈkɹuz/
en-GB/ˈʃeɪkdaʊn ˈkɹuːz/
test phase of a newly built or renovated watercraft to verify the vessel's readiness for service