Encyclopedia Astronautica
EA



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EA Lander
EA Lander on Mars. Note the cylindrical air lock that has deployed from the belly, the landing legs, the aerodynamic surfaces on the tail, and the small Marsokhod rover on the surface.
Credit: RKK Energia
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EA Ascent Stage
The Ascent Stage of the EA Mars Lander fires to launch the crew back to Mars orbit and rendezvous with the waiting Mars 1986 or 1989 expedition craft.
Credit: RKK Energia
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Aelita Martian
Wishful thinking - a Martian peeks from a crater after the EA Lander departs for orbit. Frame from an RKK Energia film.
Credit: RKK Energia
Russian manned Mars lander. Studied 1978-1986. Mars landing craft originally designed for aborted 1972 Aelita Mars study by OKB-1, and revived in the 1980's for new Energia-launched Mars expedition studies.

The EA (Expeditionary Apparatus) was a 60 metric ton cylindrical spacecraft with a conical nose.

Both conical and pear-shaped lifting bodies were studied, with a hypersonic lift to drag ratio of 0.3 to 0.5. The preferred configuration for the EA (Expeditionary Apparatus) was a cylindrical 60 metric ton spacecraft with a conical nose, 3.8 m in diameter and 13 m long. The primary braking engine was housed in the tail, and brought the spacecraft horizontally to zero velocity above the Martian surface. A landing engine at the belly of the cylinder would then fire to bring the spacecraft to a 2 m/s touchdown on four landing legs. The crew would descend to the surface in a cylindrical airlock tunnel that deployed from the belly of the cylinder to the surface. When the time came to depart, doors would open at the spine of the cylinder to reveal the vertically-launched ascent stage and crew module. From fore to aft the vehicle consisted of the conical nose, the Martian living compartment, the landing propulsion section, the return module, and the tail compartment with the braking engine. Provisions were carried for a stay of one week on the surface and one day in Mars orbit.

Gross mass: 60,000 kg (132,000 lb).
Height: 13.00 m (42.00 ft).
Diameter: 3.80 m (12.40 ft).

More... - Chronology...


Associated Countries
Associated Spacecraft
  • Mars 1986 Russian manned Mars expedition. Studied 1978-1986. NPO Energia resumed study of a Mars project once development began of the new Energia booster in place of the cancelled N1. More...

See also
Associated Launch Vehicles
  • Energia The Energia-Buran Reusable Space System (MKS) began development in 1976 as a Soviet booster that would exceed the capabilities of the US shuttle system. Following extended development, Energia made two successful flights in 1987-1988. But the Soviet Union was crumbling, and the ambitious plans to build an orbiting defense shield, to renew the ozone layer, dispose of nuclear waste, illuminate polar cities, colonize the moon and Mars, were not to be. Funding dried up and the Energia-Buran program completely disappeared from the government's budget after 1993. More...

Associated Manufacturers and Agencies
  • Korolev Russian manufacturer of rockets, spacecraft, and rocket engines. Korolev Design Bureau, Kaliningrad, Russia. More...

Bibliography
  • Semenov, Yu. P., S P Korolev Space Corporation Energia, RKK Energia, 1994.
  • Placard, TsNIIMASH Museum,
  • Krasnikov, Aleksandr, "Pilotiruemiy polyot na Mars - chetvert veka nazad", Russian Space History Web Site, Web Address when accessed: here.

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