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Personnel Armor System for Ground Troops (PASGT, pronounced / ˈ p æ z ɡ ə t / PAZ-gət) is a combat helmet and ballistic vest that was used by the United States military from the early 1980s until the early or mid-2000s, when the helmet and vest were succeeded by the Lightweight Helmet (LWH), Modular Integrated Communications Helmet (MICH), and Interceptor body armor (IBA) respectively.
The Delta IV Medium+ (4,2) (Delta 9240) had the same CBC and DCSS as the Medium, but with the addition of two Orbital ATK-built 1.5-m (60-in) diameter solid rocket booster Graphite-Epoxy Motors (GEM 60s) strap-on boosters to increase payload capacity to 6,150 kg to GTO.
Delta IV Medium: Success [8] 6 28 June 2006 Vandenberg, SLC-6: USA-184 Delta IV Medium: Success [9] 7 4 November 2006 Vandenberg, SLC-6: DMSP F17 Delta IV Medium: Success [10] 8 11 November 2007 Cape Canaveral, SLC-37B: DSP-23 Defense Support Program Delta IV Heavy: Success 9 18 January 2009 Cape Canaveral, SLC-37B: Orion 6 / Mentor 4 (USA-202 ...
Inevitably, operators suffered injury and deaths due to taking their wholly unsuited plastic helmets into the unforgiving environment of close-quarters warfare, especially the 1993 Battle of Mogadishu where at least one Delta Force operator was killed by a shot to the head. While no ballistic helmet of the time could protect from small arms ...
The Delta 1000 series was nicknamed the Straight-Eight and combined an Extended Long Tank first stage with an 8 ft-diameter (2.4 m) payload fairing, up to nine Castor 2 SRBs, and the new McDonnell Douglas Delta P second stage using the TRW TR-201 engine. Payload capacity increased to 1,835 kg (4,045 lb) to LEO or 635 kg (1,400 lb) to GTO.
The Delta IV Heavy (Delta 9250H) was an expendable heavy-lift launch vehicle, the largest type of the Delta IV family. It had the highest capacity of any operational launch vehicle in the world after the retirement of the Space Shuttle in 2011 until the Falcon Heavy debuted in 2018, and it was the world's third highest-capacity launch vehicle in operation at the time of its retirement in 2024.