The best construction time for a submarine was 644 days.
The reasons given for the decision were safety, construction time, taste and cost.
"We finished ahead of schedule, and still the construction time was 20 months."
Total construction time is reported to have been 16 weeks.
The reported construction time for the single seat models is 100 hours.
Reported construction time for the current two seat models is 150 hours.
He began working in construction full time for his father.
This technique results in a construction time of less than 2 years.
The construction time from the plans is estimated at 400 hours.
Such reforms might reduce total construction time to five years.