fighter-direction teams aboard. This all materially increased the Navy's ability to operate ships in daylight, ever nearer enemy bases, ever further into harm's way. So did the adoption of VT (proximity-fuzed) shells for the Allies' larger guns. Introduced into SOPAC the preceding January, this fuze was a miniature radar. Rather than depending on time or contact, the fuze set off the shell whenever it came within seventy feet of a solid target. Deadly for AA work, the fuze could also be used against surface targets. Also helpful was adoption of the 40-millimeter gun. Director-controlled, twin and quadruple 40s proved just the thing for close-in AA defense. These guns were useful against thin-skinned surface targets, also.
The logistics problems were getting solved as well. Another major advance was signaled when the first of the new landing ships and craft began to arrive in the theater. Both ships and craft had ramped, shelving bows, enabling them to nose into beaches to unload. Landing ships enabled operations to be shore-to-shore, loading at a base and unloading on the objective beach. Landing craft were usually identified with larger vessels and were employed carrying troops and cargo to and from ships and shore, but they could for short distances also work shore-to-shore. Together they represented a major increase in amphibious capability.