Multi-Purpose Logistics Module

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The Leonardo Multi-Purpose Logistics Module rests in Discovery's payload bay in this view taken from the ISS by a crew member using a digital still camera during STS-102. Mplm in shuttle.jpg
The Leonardo Multi-Purpose Logistics Module rests in Discovery 's payload bay in this view taken from the ISS by a crew member using a digital still camera during STS-102.
The Raffaello Multi-Purpose Logistics Module, when berthed to the ISS during STS-114 STS-114 Raffaello module.jpg
The Raffaello Multi-Purpose Logistics Module, when berthed to the ISS during STS-114

A Multi-Purpose Logistics Module (MPLM) is a large pressurized container that was used on Space Shuttle missions to transfer cargo to and from the International Space Station (ISS). Two MPLMs made a dozen trips in the Shuttle cargo bay and initially berthed to the Unity module and later the Harmony module on the ISS. From there, supplies were offloaded, and finished experiments and waste were reloaded. The MPLM was then reberthed in the Shuttle for return to Earth. Three modules were built by the Italian Space Agency (ASI): Leonardo, Raffaello, and Donatello. [1]

Contents

The Leonardo module was modified in 2010 to turn it into the Permanent Multipurpose Module (PMM) and was permanently attached to the ISS during the STS-133 mission in March 2011. In July 2011, the Raffaello module was the primary payload on the final Space Shuttle mission. It returned with the Shuttle and was stored at the Kennedy Space Center. The Donatello module never launched.

MPLMs were flown on 12 of the 37 Space Shuttle missions to the ISS.

History

The modules were provided to NASA under contract by the Italian Space Agency (ASI). Three MPLMs were built and delivered to NASA and have names chosen by the ASI to denote some of the great talents in Italian history: Leonardo da Vinci, Raffaello and Donatello. Although built by ASI, the modules are owned by NASA. In exchange for building the MPLMs, ASI receives access to U.S. research time on the ISS. [1]

The MPLMs have a heritage that goes back to Spacelab. [2] In addition, ESA's Columbus module, the Harmony and Tranquility ISS modules and the ATV and Cygnus resupply craft all trace their origins to the MPLMs. [2] The MPLM concept was originally created for Space Station Freedom. Initially, they were to be built by Boeing, but in 1992, the Italians announced that they would build a "Mini-Pressurized Logistics Module", able to carry 4,500 kilograms (4.5 t) of cargo. After the 1993 redesign of Freedom, the length was doubled and it was renamed the "Multi-Purpose Logistics Module". Each empty MPLM is approximately 21 feet (6.4 m) long, 15 feet (4.6 m) in diameter, weighs 4,400 kilograms (9,700 lb), and can deliver up to nine metric tons of cargo to the ISS. [1]

Donatello was a more capable module than its two siblings, as it was designed to carry payloads that required continuous power from construction through to installation on the ISS. However, Donatello was never used and some of its parts were cannibalized to convert Leonardo into the PMM. [3]

With the end of the Space Shuttle program in 2011, the Raffaello and Leonardo modules were flown a combined total of 12 times.

Design

An MPLM is a large cylinder equipped with a common berthing mechanism at one end, and grapple fixtures to allow the Canadarm-2 to move it from the shuttle bay to a berthing port on the US Orbital Segment of the ISS.

Power during launch

Remotely Operated Electrical Umbilical diagram ROEU STS-135.png
Remotely Operated Electrical Umbilical diagram

In order to provide power to equipment and experiments inside the MPLM during launch, the MPLM could be connected to the Shuttle's power supply by means of the Remotely Operated Electrical Umbilical (ROEU). The umbilical was mounted on the starboard side payload bay sidewall longeron, and was a folding arm umbilical that connected to the MPLM while it was in the payload bay. The arm was disconnected and retracted prior to the MPLM being removed for placement on the ISS and then reconnected once the MPLM was placed back inside the payload bay.

MPLM logo Multi-Purpose Logistics Module Logo.png
MPLM logo

Since the module names are also the names of three of the four Teenage Mutant Ninja Turtles, the NASA MPLM Group approached Mirage Studios artist A.C. Farley to design a logo featuring Raphael in an astronaut flight suit. [4] There were cloisonné pins produced, as well as stickers and embroidered patches. Because the Ninja Turtles were created by Mirage Studios and owned by them at the time, NASA gave Mirage the copyright to the logo in exchange for the use of the studio's character on it. [4]

Missions

Cosmonaut Yuri Gidzenko in Leonardo in 2001 Yuri Gidzenko ISS Leonardo Module.jpg
Cosmonaut Yuri Gidzenko in Leonardo in 2001
FlightLaunch dateMissionShuttleMPLMMass up
(kg)[ citation needed ]		Mass down
(kg)[ citation needed ]
18 March 2001 STS-102 ISS 5A.1 Discovery Leonardo 10,2136,540
219 April 2001 STS-100 ISS 6A Endeavour Raffaello 8,8116,763
310 August 2001 STS-105 ISS 7A.1DiscoveryLeonardo9,4677,799
45 December 2001 STS-108 ISS UF-1EndeavourRaffaello9,2288,693
55 June 2002 STS-111 ISS UF-2EndeavourLeonardo10,7539,140
626 July 2005 STS-114 ISS LF 1DiscoveryRaffaello8,3019,110
74 July 2006 STS-121 ISS ULF 1.1DiscoveryLeonardo9,5888,124
814 November 2008 STS-126 ISS ULF 2EndeavourLeonardo12,7486,966
928 August 2009 STS-128 ISS 17ADiscoveryLeonardo [5] 12,6018,927
105 April 2010 STS-131 ISS 19ADiscoveryLeonardo12,3719,242
1124 February 2011 STS-133 ISS ULF 5Discovery Leonardo PMM Part of ISS
128 July 2011 STS-135 ISS ULF 7 [4] Atlantis Raffaello9,5005,660

Specifications

The following are the specifications of the MPLM:

Future use

The Donatello MPLM has been converted by Lockheed Martin into a Habitat Ground Test Article (HGTA) Lunar habitat prototype [7] which is located at NASA KSC. Leonardo is permanently attached to the ISS as PMM and should reenter in the atmosphere with it. Raffaello is located at an Axiom Space facility near Houston, in preparation to undergo work to become an element for the Axiom Commercial Space Station. [8] [9]

See also

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References

  1. 1 2 3 "Multi-Purpose Logistics Modules". NASA. 2007.
  2. 1 2 "A new European science laboratory in Earth orbit" (PDF). ESAMultimedia.ESA.int. European Space Agency.
  3. ↑ "Spaceflight Now - STS-133 Shuttle Report - Roomy addition for space station ready to launch". SpaceFlightNow.com.
  4. 1 2 3 "Multi-Purpose Logistics Module Office". NASA MSFC. Archived from the original on March 21, 2009. Retrieved February 22, 2009.
  5. ↑ Gebhardt, Chris (2008-08-25). "STS-128 – Atlantis' 2009 mission baselined by PRCB". NASAspaceflight.com . Retrieved 2020-11-25.
  6. 1 2 3 4 NASA. "What is MPLM?". Archived from the original on 27 May 2010. Retrieved 11 June 2011.
  7. ↑ Returning Astronauts to the Moon: Lockheed Martin Finalizes Full-Scale Cislunar Habitat Prototype
  8. ↑ Leinfelder, Andrea (2023-04-27). "NASA's Super Guppy delivers space shuttle module for reuse on Axiom Space's commercial station". The Houston Chronicle. Retrieved 2023-08-03.
  9. ↑ "NASA Image and Video Library". NASA Image and Video Library. Retrieved 2023-08-03.
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