20 bombs, designed to be delivered by the B-2 bomber, in September 2011. In February 2012, Congress approved $81.6 million to further develop and improve the weapon. On 14 November 2011, Bloomberg reported that the Air Force Global Strike Command started receiving the Massive Ordnance Penetrator and that the deliveries "will meet requirements for the current operational need". The Air Force now has received delivery of 16 MOPs as of November 2011. And as of March 2012, there is an "operational stockpile" at Whiteman Air Force Base. In 2012, the Pentagon requested $82 million to develop greater penetration power for the existing weapon. A 2013 report stated that the development had been a success, and B-2 integration testing began that year. Next Generation Penetrator munition On 25 June 2010, USAF Lt. Gen. Philip M. Breedlove said that the Next Generation Penetrator (NGP) munition should be about a third the size of the Massive Ordnance Penetrator so it could be carried by affordable aircraft. In December 2010, the USAF had a Broad Agency Announcement (BAA) for the Next Generation Penetrator. Global Strike Command has indicated that one of the objectives for the Next-Generation Bomber is for it to carry a weapon with the effects of the Massive Ordnance Penetrator. This would either be with the same weapon or a smaller weapon that uses rocket power, not unlike the WW II British/American Disney bomb used, to reach sufficient speed to match the penetrating power of the larger weapon. One of the current limitations of the MOP is that it lacks a void-sensing fuze and will therefore detonate only after it has come to a stop, even if it has passed the target area. Specifications Length: Diameter: Weight: Warhead: high explosive Penetration: See also Bunker buster Earthquake bomb Thermobaric weapon Specific large bombs BLU-82 Daisy Cutter bomb Father of All Bombs (FOAB) GBU-43/B MOAB Grand Slam (bomb) T-12 Cloudmaker Tallboy (bomb) References External links Massive Ordnance Penetrator Fact Sheet—dtra.mil First Massive Ordnance Penetrator Explosive Test Successful—dtra.mil Boeing-Developed Massive Ordnance Penetrator Successfully Completes Static Lethality Test—Boeing 'Bunker busters' may grow to 30,000 pounds—CNN Massive bomb to MOP up deeply buried targets—Jane's Defence Weekly A different kind of smart: weapons becoming autonomous and precise—Jane's Massive Ordnance Penetrator (MOP)—GlobalSecurity.org MOPping Up: The USA's 30,000 Pound Bomb Kennedy-Feinstein Amendment to the Defense Authorization Bill on the Robust Nuclear Earth Penetrator (RNEP) Rare image of a B-2 stealth