Gemini spacecraft
The Gemini spacecraft was a two-person American capsule used for NASA’s crewed space missions in the 1960s.
Also known as: Project Gemini spacecraft, Gemini capsule
How big is it?
5.61 m · overall spacecraft length
Overall spacecraft length · specified
A little perspective
Gemini spacecraft vs Racing catamaran: length comparison
The overall spacecraft length of the Gemini spacecraft is about 1.02 times the formula 18 maximum length of a racing catamaran.
The Gemini spacecraft was a two-person American capsule used for NASA’s crewed space missions in the 1960s.
A racing catamaran is a high-speed sailing boat with two parallel hulls, designed for competitive sailing.
Both rulers start at the same zero and share one linear scale. Artwork keeps its original proportions. Horizontal rulers compare the selected spans; vertical brackets also identify height on the artwork.
Measurements, assumptions & sources +
Gemini spacecraft
Overall spacecraft length: 5.61 m; specified.
A Gemini spacecraft was 5.61 m long and 3.05 m across its equipment adapter. The 3,810 kg launch mass is representative of the crewed missions; exact mass varied by mission.
The marked overall spacecraft length is calibrated. Unmeasured illustration details are representative.
Racing catamaran
Formula 18 maximum length: 5.52 m; specified.
A Formula 18 racing catamaran at the class limits of 5.52 m length, 2.60 m width and 180 kg minimum ready-to-sail mass, shown at a defined 12 m/s pace. Crew mass and momentary race speed are excluded.
International Formula 18 — Class rules
The marked formula 18 maximum length is calibrated. Unmeasured illustration details are representative.
Use the visual comparison to explore its scale, then check the measurements and sources.
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Why this measurement?
Why we use 5.61 m
We compare the overall spacecraft length of the Gemini spacecraft. This value follows a stated specification; check its scope in the notes.
A Gemini spacecraft was 5.61 m long and 3.05 m across its equipment adapter. The 3,810 kg launch mass is representative of the crewed missions; exact mass varied by mission.
The marked vertical span follows the measured feature, not the edges of the image. How calibrated comparisons work →
Recorded properties
Dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 5.61 m | Not recorded | specified | |
| 3.05 m | Not recorded | specified | |
| 3.81 t | 3.76 t to 3.85 t | specified |
Around this scale
Explore nearby values.
Compare examples with lower, similar and higher values. Each card names the measurement being compared.
Nearest lower valuePlanets, moons and spaceKepler space telescope4.7 mOverall observatory heightThe Kepler space telescope was a NASA observatory launched to detect planets around other stars by monitoring changes in their brightness.
Around the same scaleVehicles and transportRacing catamaran5.52 mFormula 18 maximum lengthA racing catamaran is a high-speed sailing boat with two parallel hulls, designed for competitive sailing.
Nearest higher valuePlanets, moons and spaceCassini spacecraft6.8 mOverall spacecraft heightThe Cassini spacecraft was a NASA probe launched to study Saturn and its moons, carrying scientific instruments and the Huygens lander.Sources and method
Want to check the number?
The source records and measurement method remain available for inspection.
- NASA — Gemini spacecraftGemini programme spacecraft dimensions, configuration and mission context.
There’s always another scale
Follow your curiosity.
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