At 30 knots it would take about 6 days for an Aircraft Carrier to cross the Atlantic. And about 10 days to cross the Pacific.
On the average a modern Aircraft carrier takes about 5 years from beginning to delivery.
an aircraft carrier
Many modern fighters can cross the Atlantic in 4 hours or so.
30 hrs
How long did it take to cross the Atlantic Ocean in 1902
Aircraft carriers are a long range striking arm of a naval air force. Used properly they can decimate enemy fleets as the US carrier fleet did at Midway to the Japanese. In the Atlantic, British aircraft carriers were decisive to hunting down German ships. Not having aircraft carriers was possibly one of the biggest mistakes for the German navy.
The B-47 is a long obsolete medium bomber that was land based - they were never used on aircraft carriers, and indeed, needed more runway than an aircraft carrier could provide. Hence, the question is moot.
10 months
The USS Lexington's was about 888 feet long (Lex was sunk at the Battle of the Coral Sea).
if you're talking about how long it was used or how long it is if its about the length its 342 m
The Yorktown class carrier, USS Enterprise (CV6) was about 824 feet long. Her sisters Hornet & Yorktown did not survive WWII; Enterprise was scrapped (re-cycled) in 1959.
October 12, 1492