Gemini Applications - friznit/Unofficial-BDB-Wiki GitHub Wiki

Bridging the gap between Hermes (Mercury) and Kane (Apollo), the Leo (Gemini) Command Pod introduces a number of innovations including a docking port and a service module that also serves as an adapter for the Titan II Gemini Launch Vehicle.

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The Gemini Reentry Module has an accompanying Service Adapter Module which includes an Equipment Module and an Orbital Attitude Manoeuvre System. The Gemini Launch Vehicle is a modified Titan II missile. The Reentry Module was fitted with ejection seats in place of a Launch Escape System.

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Gemini-Agena Target Vehicle was launched atop an Atlas-Agena LV-3A to practice orbital space rendezvous and docking in preparation for the Apollo missions.

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Advanced Gemini proposed a number of extensions to the programme including manned orbital, cislunar and lunar landing missions as a cheaper and quicker alternative to Apollo. A number of approaches were considered, including a Earth Orbital Rendezvous with a stacked Agena and Centaur.

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Another proposal involved a Lunar Orbit Rendezvous with a lightweight lander launched previously on a Saturn C-3. The BDB "Dona" lander is a representation of the Gemini Lander concept.

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A 1962 study considered various options for a modular Gemini Space Station launched on Titan GLV or Titan III and assembled in orbit.

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Gemini Ferry was a conceptual design to transport crew and cargo to NASA and USAF space stations.

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A McDonnell Douglas proposal aimed to shuttle crew and cargo to space stations planned by the Apollo Applications Project (AAP) using a "Big Gemini". Two baseline Big G spacecraft were outlined: a nine-man minimum modification version of Gemini B called Min-Mod Big G and a 12-man Advanced Big G. Outwardly similar, they were designed for launch on the USAF Titan IIIG or IIIM. An alternative conical configuration was designed to mate with the S-IVB upper stage of a Saturn INT-20 (use the tag "B1G" in the parts search and the round Sarnus-SIVB-BLAM Lunar Adapter base with the Big G node configuration to interface with the S-IVB Instrument Unit).

Gemini Big G

Titan IIIM Adv Big G 69 and Ferry

Titan IIID Gemini Ferry & Titan IIIM Advanced Big G