Haapalah / Aliyah Bet

Yerushalayim haNetzura ירושליים הנצורה Jerusalem Besieged was a wooden 3 masted, some cite twin-masted, brigantine.
Registered Name: Ambrosiano Ex Cicilo Ex Cicino Viareggio Ex Chiavari Ex Maria Madre Ex Costanza Ex Campofranco Ex Gigino
Nickname: הקדושה The Blessed
Built: 1914
Gross Tonnage: 197 tons

On February 3, 1948, Yerushalayim haNetzura ירושליים הנצורה sailed from from Civitavecchia, carrying 670 passengers.
Irenaeus E. Thomas of the University of Rzeszow cites: Yerushalayim haNetzura ירושליים הנצורה carried 679 passengers.
Tzvi Ben-Tzur cites: "The first attempt to load the Ma’apilim was near the shore of Civitavecchia, Italy, but the weather was bad and the sea was rough. When one of the launch boats carrying Ma’apilim to the vessel overturned, the loading was halted. It was resumed only two days later, when the sea had calmed down. The vessel sailed on February 3rd 1948, carrying 680 Ma’apilim."
AmutaYam.org.il cites: Yerushalayim haNetzura ירושליים הנצורה sailed from from Foggia, carrying 680 passengers.
Paul H. Silverstone's Aliyah Bet Project cites: Yerushalayim haNetzura ירושליים הנצורה sailed from from Civitavecchia, carrying 679 passengers.
Yehudale Tzfati served as Palyam פלי"ם Commander מפקד aboard Yerushalayim haNetzura ירושליים הנצורה.
Moshe Dafni served as Palyam פלי"ם Escort מלווה aboard Yerushalayim haNetzura ירושליים הנצורה.
Danny Sandler served as Gidoni גדעוני, wireless radio operator, aboard Yerushalayim haNetzura ירושליים הנצורה.
Moshe Dafni cites: "The captain was an old man, the chief engineer was an Austrian, and there were four other men in the crew."

On February 10, 1948, a British reconnaisance plane discovered Yerushalayim haNetzura ירושליים הנצורה, about 80
miles west of Palestine.

On February 12, 1948, British destroyers, HMS Phoebe, HMS Cheviot and HMS Chaplet, approached Yerushalayim haNetzura ירושלים הנצורה, blocked her path and forced her to sail itowards Haifa.
Tzvi Ben-Tzur cites: "The vessel was boarded by British soldiers but the Palyamnikim had managed to knock out the engines, so that the vessel had to be towed to Haifa. There was no attempt to resist and all of the Ma’apilim and the foreign crew were deported to Cyprus."
Paul H. Silverstone's Aliyah Bet Project cites: was "intercepted off Haifa by the destroyer Cheviot. 402 men, 216 women, 61 children, deported to Cyprus on the Ocean Vigour."