Elektronika Mk-36, Mir, non-HP, Space-faring
Are there any other brands beside HP and Elektronika that went into space?
Here’s some info from the Museum of Soviet Calculators:
A MIR calculator flew for one year in space. The property of Cosmonaut Yuri Romanenko. Offered with a letter of authentification from Romanenko’s son, in Russian with English translation. This calculator (Elektronika MK36) was used extensively by Romanenko for navigational and scientific work during his one-year flight aboard Space Station MIR in 1986 and 1987. This calculator covered more than 233,660,000 kilometers of space travel during its one-year orbital journey. A rare flown object from a Russian cosmonaut.
Elektronika Mk-52, Mir, non-HP, Soyuz, Space-faring
I have to post some information about this calculator because it’s a distant relative of HP calculators: the Elektronika Mk-52. Two noteworthy facts about this model:
Here’s an excerpt from the Museum of Soviet Calculators on the Web:
Soyuz TM-7, 26 November 1988-27 April 1989
Property of Cosmonaut Aleksandr A. Volkov, Elektronika MK-52 Calculator, with 2-part instructional booklet, used for calculating the perimeters of the docking of Soyuz capsules with Mir in the event of the failure of onboard computers. The bottom of the calculator case and the front covers of both parts of the instructional booklet are signed by Volkov with the inclusive dates of the TM-7 mission and also stamped with the Mir ink cancellation.
“…and there was a ROM module with astronomical programs that the cosmonauts in Mir used… of course it was military/restricted, and no one ever saw it!”
Another excerpt, this time from the Soviet Calculators History webpage:
By the way, the MK-52 flew to the space in the “Soyuz TM-7”, where it was supposed to compute the landing trajectory in case the onboard computer would fail.
Soyuz TM-7 launch
Mir space station