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Delta 4M+(5,4)

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AKA: Delta IV Medium+ (5.4). Status: Active. First Launch: 2009-12-06. Last Launch: 2017-03-19. Number: 7 . Payload: 13,600 kg (29,900 lb). Thrust: 5,860.00 kN (1,317,380 lbf). Gross mass: 404,600 kg (891,900 lb). Height: 77.20 m (253.20 ft). Diameter: 5.00 m (16.40 ft). Apogee: 185 km (114 mi).

LEO Payload: 13,600 kg (29,900 lb) to a 185 km orbit at 28.50 degrees. Payload: 6,120 kg (13,490 lb) to a GTO, 27 deg. Launch Price $: 160.000 million in 2004 dollars.

Stage Data - Delta IV Medium+ (5.4)

• Stage 0. 4 x GEM 60. Gross Mass: 33,798 kg (74,511 lb). Empty Mass: 3,849 kg (8,485 lb). Thrust (vac): 826.553 kN (185,817 lbf). Isp: 275 sec. Burn time: 90 sec. Isp(sl): 243 sec. Diameter: 1.52 m (4.98 ft). Span: 1.52 m (4.98 ft). Length: 53.00 m (173.00 ft). Propellants: Solid. No Engines: 1. Engine: GEM 60. Status: In production. Comments: 90.5 bar chamber pressure, 11.0 nozzle expansion ratio. Figures for TVC version. Fixed nozzle version is 599 kg lighter.

• Stage 1. 1 x Delta RS-68. Gross Mass: 226,400 kg (499,100 lb). Empty Mass: 26,760 kg (58,990 lb). Thrust (vac): 3,312.755 kN (744,737 lbf). Isp: 420 sec. Burn time: 249 sec. Isp(sl): 365 sec. Diameter: 5.10 m (16.70 ft). Span: 5.10 m (16.70 ft). Length: 40.80 m (133.80 ft). Propellants: Lox/LH2. No Engines: 1. Engine: RS-68. Status: In production. Comments: Low cost expendable stage using lower performance engine. Used in Delta 4, Boeing EELV. Engine can be throttled to 60%.

• Stage 2. 1 x Delta 4 - 2. Gross Mass: 24,170 kg (53,280 lb). Empty Mass: 2,850 kg (6,280 lb). Thrust (vac): 110.050 kN (24,740 lbf). Isp: 462 sec. Burn time: 850 sec. Diameter: 2.44 m (8.00 ft). Span: 4.00 m (13.10 ft). Length: 12.00 m (39.00 ft). Propellants: Lox/LH2. No Engines: 1. Engine: RL-10B-2. Status: In production. Comments: Delta 3 second stage with hydrogen tank stretch.

• USA 211 - . Payload: WGS 3. Mass: 5,990 kg (13,200 lb). Nation: USA. Agency: Martin. Class: Communications. Type: Military communications satellite. Spacecraft: HS 702. USAF Sat Cat: 36108 . COSPAR: 2009-068A. Apogee: 64,827 km (40,281 mi). Perigee: 31,268 km (19,428 mi). Inclination: 0.60 deg. Period: 2,106.00 min. US Army Wideband Global Satcom, carried X-band and Ka-band communications payloads..

• USA 233 - . Payload: WGS 4. Mass: 6,000 kg (13,200 lb). Nation: USA. Class: Communications. Type: Military communications satellite. Spacecraft: HS 702. USAF Sat Cat: 38070 . COSPAR: 2012-003A. Apogee: 66,872 km (41,552 mi). Perigee: 27,959 km (17,372 mi). Inclination: 1.10 deg. Period: 2,069.50 min. Fourth Wideband Global Satcom satellite, providing high bandwidth communications for the US military. Operated by US Army Space Command, placed in an initial supersynchronous geostationary transfer orbit..

• USA 243 - . Payload: WGS 5. Mass: 5,987 kg (13,199 lb). Nation: USA. Class: Communications. Type: Communications satellite. Spacecraft: HS 702. USAF Sat Cat: 39168 . COSPAR: 2013-024A. Apogee: 40,362 km (25,079 mi). Perigee: 31,171 km (19,368 mi). Inclination: 0.23 deg. Period: 1,435.07 min. Wideband Gapfiller Satellite; provided communications for the US military from geosynchronous orbit..

• USA 244 - . Payload: WGS 6. Mass: 6,000 kg (13,200 lb). Nation: USA. Class: Communications. Type: Communications satellite. Spacecraft: HS 702. USAF Sat Cat: 39222 . COSPAR: 2013-041A. Apogee: 66,680 km (41,430 mi). Perigee: 20,934 km (13,007 mi). Inclination: 2.76 deg. Period: 1,864.76 min. US military X/Ka-band Wideband Global Satcom communications satellite. Funded by Australia; the Australian Defense Force also makes use of the WGS network..

• USA 263 - . Payload: WGS 7. Mass: 6,200 kg (13,600 lb). Nation: USA. Class: Communications. Type: Communications satellite. Spacecraft: HS 702. USAF Sat Cat: 40746 . COSPAR: 2015-036A. Apogee: 66,798 km (41,506 mi). Perigee: 494 km (306 mi). Inclination: 24.10 deg.

  Wideband Global Satcom military communications satellite launched initially into a supersynchronous geotransfer orbit. WGS satellites were managed by the USAF Space and Missile Center and replaced the older DSCS system with X-band and Ka-band communications systems. Second Delta 4 launch to use the uprated RS-68A main engine.

• USA 272 - . Payload: WGS 8 / WGS SV-8. Mass: 6,200 kg (13,600 lb). Nation: USA. Class: Communications. Type: Communications satellite. Spacecraft: HS 702. USAF Sat Cat: 41879 . COSPAR: 2016-075A. Apogee: 44,207 km (27,468 mi). Perigee: 430 km (260 mi). Inclination: 27.00 deg.

  8th Boeing 702-class Wideband Global Satcom payload for the US Dept. of Defense carried an improved 'channelizer' that increases the capacity of the satellite. The second stage was reportedly deorbited, and the extra propellant required to do this necessitated a lower apogee transfer orbit than for previous WGS missions. By Dec 25 WGS-8 had reached a 26728 x 44588 km x 0.2 deg orbit.

• USA 275 - . Payload: WGS 9. Mass: 6,200 kg (13,600 lb). Nation: USA. Class: Communications. Type: Communications satellite. Spacecraft: HS 702. USAF Sat Cat: 42075 . COSPAR: 2017-016A. Apogee: 44,262 km (27,503 mi). Perigee: 430 km (260 mi). Inclination: 27.00 deg.

  See WGS 9 (USA 275). Wideband Global Satcom 9 was to be added to the US DoD communications satellite constellation. This WGS was partly funded by allied countries, although it was still owned and operated by USAF. A United Launch Alliance Delta 4 sent the satellite aloft on Mar 19, first into a 185 x 6097 km x 27.6 deg parking orbit and then to a 430 x 44262 km x 27.0 deg supersynchronous transfer orbit. The Delta 377 second stage was deorbited over the Pacific near the Phillipines with reentry around 1230 UTC.