captain, a panel operator, and four ammunition loaders, all located below decks. In fully automatic non-sustained firing operations (Mode IV), 20 rounds can be fired without any personnel inside the mount, using an automatic loader. Ammunition Mark 68 HE-CVT Weight - 68.5 lb (31.1 kg) Projectile Length - 26.1 in (66.3 cm) Used only on Mods 0-2 Mark 80 HE-PD Weight - 67.6 lb (30.7 kg) Projectile Length - 26 in (66 cm) Mark 91 Illum-MT Weight - 63.9 lb (29.0 kg) Projectile Length - 26.1 in (66.3 cm) Mark 116 HE-VT Weight - 69.7 lb (31.6 kg) Projectile Length - 26 in (66 cm) Mark 127 HE-CVT Weight - 68.6 lb (31.1 kg) Projectile Length - 26 in (66 cm) Mark 156 HE-IR Weight - 69.0 lb (31.3 kg) Projectile Length - 26 in (66 cm) Guided shell On 9 May 2014, the U.S. Navy released a request for information (RFI) for a guided 127 mm (5-inch) round that could be fired from Mark 45 guns on Navy destroyers and cruisers. The thinking is that if the technology worked in the Long Range Land Attack Projectile (LRLAP) for the Advanced Gun System on s, it can be applied to a 127 mm (5-inch) mount. This RFI comes six years after the cancelation of the Raytheon Extended Range Guided Munition. The shell must have at least double the range of unguided shells for missions including Naval Surface Fire Support (NSFS)/Land Attack, and increasing anti-surface warfare (ASuW) capabilities against fast attack craft (FAC) and fast inshore attack craft (FIAC); the main purpose is to destroy incoming small boats at a greater range with a proximity fuse airburst blast fragmentation warhead to spray shrapnel over swarms. Expected submissions include the BAE Systems Multi Service–Standard Guided Projectile (MS-SGP), Raytheon Excalibur N5, and OTO Melara Vulcano guided long-range projectile. Naval Sea Systems Command is also looking to fire a version of the hyper-velocity projectile (HVP) developed for Navy electromagnetic railguns from conventional 5-inch deck guns. Using the HVP could give existing destroyers and cruisers better ability to engage land, air, and missile threats and allow more time to refine the railgun. The HVP would be a cheaper solution to intercepting incoming missiles than a missile interceptor costing hundreds of thousands of dollars. Converting the HVP to fire from conventional guns was not a program of record . HVP shells fired from 5-inch deck guns