Applicants earlier developments of marine vehicles using artifically pressurized supporting gas cushions have been successful and have resulted in {TAIL ~ a number} of {HEAD ~ vehicles} being built 
Applicants earlier developments of marine vehicles using artifically pressurized supporting gas cushions have been successful and have resulted in { TAIL ~ a number } of { HEAD ~ vehicles } being built
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH