Passage: Mehmed built a fleet to besiege the city from the sea .Contemporary estimates of the strength of the Ottoman fleet span between about 110 ships , 145 , 160 , 200-250  to 430 . A more realistic modern estimate predicts a fleet strength of 126 ships comprising 6 large galleys, 10 ordinary galleys, 15 smaller galleys, 75 large rowing boats, and 20 horse-transports.:44 Before the siege of Constantinople, it was known that the Ottomans had the ability to cast medium-sized cannons, but the range of some pieces they were able to field far surpassed the defenders' expectations. Instrumental to this Ottoman advancement in arms production was a somewhat mysterious figure by the name of Orban , a Hungarian .:374 One cannon designed by Orban was named "Basilica" and was 27 feet  long, and able to hurl a 600 lb  stone ball over a mile .
Did the Ottoman fleet have more large rowing boats or horse-transports? How large were the cannons built by the Ottomans? How many large galleys and horse-transports is estimated from the fleet strength? How many large galleys and large rowing boats is estimated from the fleet strength? How many large galleys and ordinary galleys is estimated from the fleet strength? How many large galleys and smaller galleys is estimated from the fleet strength? How many miles could the stone ball travel? How many more large rowing boats than large galleys did the fleet have? How many more ordinary galleys than large galleys did the Ottoman fleet possess? How many more rowing boats than horse-transports did the Ottoman fleet have? How many ordinary galleys and large rowing boats is estimated from the fleet strength? How many ordinary galleys and smaller galleys is estimated from the fleet strength? How many ships did the contemporary estimation  was closest to the modern estimation? What could throw a 600lb stone ball over a mile? Which group from the estimated of the fleet strength is larger: large galleys or ordinary galleys? Which group from the estimated of the fleet strength is larger: large rowing boats or horse-transports? Which group from the estimated of the fleet strength is larger: large rowing boats or smaller galleys? Which group from the estimated of the fleet strength is smaller: large galleys or ordinary galleys? Which group from the estimated of the fleet strength is smaller: large rowing boats or horse-transports? Which group from the estimated of the fleet strength is smaller: large rowing boats or smaller galleys?