THIS seems to underpin the planning of the DC-10 rollout, which was in fact a taxi-out. Gu to Youtube, then search: Q2UnykgWYPE
It's an impressive taxi-out. Taxi tests up to 100 knots, lifting the nose gear. Another taxi at 100 knots with full flaps. Then it took it's first flight 5 weeks later.
It also received it's type certificate and entered commercial service less than a year after that.
Roll Out: Jul-23-70
First flight: Aug-29-70
Type Certificate: Jul-29-71
First Commercial Flight: Aug-5-71
These days on a rollout, you'd be lucky to see inside let alone see it moving or doing 100 knots. Then years before certification.