This ship originally had a helicopter hangar, but now the hangar was not housing the helicopter Leonard Ethan had seen in Canada before. Instead, it was filled with various supplies.
The reason for the absence of a helicopter in the hangar was quite simple. On one hand, there were too many things to store, requiring more space. On the other hand, the Sinai Peninsula was not very suitable for helicopter use.
Not to mention how unfriendly the desert environment was to helicopter engines, the fact that there were still many dangerous elements in the desert made flying a thinly-skinned civilian helicopter quite risky.
Most of the items in the helicopter hangar were necessary for this expedition, and Leonard quickly bypassed the various boxes filled with all kinds of items to reach the back of the hangar. Following Scott's previous instructions, he moved a box and used a code to unlock a small secret chamber with a coded door.