One of Iran’s most modern frigates, the Sahand, has capsized in Bandar Abbas. Recent upgrades may have made the ship more top-heavy.
Recent upgrades may have made the ship more top-heavy.
I worked on the SPS-49 when I was at Raytheon. The antenna looks like it is made of steel, but most of the reflector was actually aluminized mylar. It was the size of the side of a barn 24’ x 8’, but light like a feather. The feed horn, and support, not so light. It was fitted onto destroyers. The Navy bureau of ships hated it, because of the mass aloft on smaller ships. The power supplies and transmitter acted as counterweight, but that increased the roll moment of inertia. A lot of newbies must have lost their lunch on those boats.