Encyclopedia Astronautica
Delta 3925


American orbital launch vehicle. Four stage vehicle consisting of 9 x Castor 4A + 1 x ELT Thor/RS-27 + 1 x Delta K + 1 x Star 48B

LEO Payload: 3,451 kg (7,608 lb) to a 185 km orbit. Payload: 1,283 kg (2,828 lb) to a GTO in 1985 dollars. Flyaway Unit Cost $: 38.320 million.

Status: Out of production.
Gross mass: 192,360 kg (424,080 lb).
Payload: 3,451 kg (7,608 lb).
Height: 36.00 m (118.00 ft).
Diameter: 2.44 m (8.00 ft).
Thrust: 3,046.20 kN (684,813 lbf).
Apogee: 185 km (114 mi).

More... - Chronology...


Associated Countries
Associated Engines
  • Star 48 Thiokol solid rocket engine. 67.2 kN. Used in Delta 3900; Conesotga; PAM-S; PAM-D. Total flown included in total for Star-48-8. Total impulse 575,682 kgf-sec. Motor propellant mass fraction 0.946. Isp=286s. First flight 1982. More...

See also
  • Delta The Delta launch vehicle was America's longest-lived, most reliable, and lowest-cost space launch vehicle. Development began in 1955 and it continued in service in the 21st Century despite numerous candidate replacements. More...

Associated Manufacturers and Agencies
  • Douglas American manufacturer of rockets, spacecraft, and rocket engines. Boeing Huntington Beach, Huntington Beach, CA, USA. More...

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