Thousands.
Many flew more missions than that.
B-17 crews had to complete 25 missions before they were rotated back to the United States. If they elected to they could stay on for 5 more missions to complete 30 missions and not be called back to duty but if they left after 25 missions they could be called back again to the war and would have to complete another 25 missions before they went home again.
There were 2 North Carolina class ships completed in the late 30's, 4 South Dakota class ships completed in the early part of WW2, and the 4 Iowa class ships completed in 1943-44... so depending on your exact timeframe, approximately 10 that were completed. Additionally, there were 2 more Iowa class ships that were never completed, and 4+ Montana class ships that were never built (basically enlarged Iowas with an extra turret, lower speed, and thicker armor)
Four Yamato-class Battleships were ordered. Two of which were completed. (Yamato & Musashi). The third (Shinano) was partially-completed, and then converted into an aircraft carrier. The fourth was cancelled and never built.
To get to Krokotopia, you need to complete the world of Wizard City, the world where you start. To start the missions there, go to Unicron Way, and complete as many missions as you can. Once you have completed all the missions, you should have one to talk to Headmaster Ambrose, I believe it is the final missions given from the Life Wizard Ceren Nightchant, or whatever his name is. Good Luck in your journeys!
The space shuttle Atlantis completed a total of 33 missions during its operational lifetime.
Challenger completed 9 missions. It exploded while launching on its 10th mission.
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As of 2021, NASA has completed over 200 manned and unmanned space missions, including robotic missions to planets, satellites, and the International Space Station. These missions have helped advance our understanding of space exploration and the universe.
You have to have completed 500 - 1499 missions to receive the Imperial WikiGuide badge. Missions are earned by performing community actions such as greeting new contributors, delivering special occasion greetings, congratulations, and many more fun activities.
The Challenger completed nine successful missions before the tragic accident on its tenth mission in 1986.
India has launched 56 satellites into space to date. Many of which have since completed their missions and are no longer operational, some have been landed.
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John Glenn completed one mission as the first American to orbit Earth on February 20, 1962.
The space shuttle Challenger completed nine missions before the tragic accident in 1986.