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Eiger rocket
Specs overview
Payload 500 km sso
150 kg
Launch mass
8375 kg
Green, storable
Total thrust
129 kN
Total length
12.9 m
Stage 1 length
7 m
Stage 2 length
3.3 m
Fairing length
2.5 m
1.2 m
Commercial flights
Launch cost
$1.2 M
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Pythom presents the

Eiger rocket

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Launch anytime from anywhere

Born out of a design for Mars ascenders, Eiger rocket is lightweight, quick to assemble and powered by propellants that don’t require cryogenic storage facilities.

Second stageFirst stageSecond stageFirst stageSecond stage nozzleInterstage
NoseconeInside of noseconeSecond stageInside of noseconeInside of noseconeSatellite released from payload fairing

Lowering the cost of space access

$1.2M for a dedicated rocket to launch 150 kg payload to LEO. 90% of rocket cost in the traditional space industry is related to personnel. Pythom runs small teams and tight facilities, building in the spirit of early explorers such as Lewis & Clark, and Roald Amundsen.

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Fuel tank

Carbon neutral furfuryl alcohol. Natural ignition with nitric acid.

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Engine cluster

9 regeneratively cooled Asterex engines. Total thrust 129 kN.

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Oxidizer tank
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Storable nitric acid (HNO3).

Eiger first stageOutline illustration of Eiger's first stageTranslucent first stage with view of engine cluster and the Black Magic pressure systemTranslucent first stage with view of the fuel tankTranslucent first stage with view of the oxidizer tank.
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Payload fairing

Up to 150 kg payload to low earth orbit (LEO).

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Vacuum engine
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Second stage 14kN Asterex engine with vacuum nozzle.

Eiger second stageOutline illustration of Eiger's second stageTranslucent second stage with view of vacuum engine and the Black Magic pressure systemTranslucent second stage with view of payload
Jonathan circuit boardJonathan circuit board
Jonathan software

Modern rocket design is 80% software. Jonathan autonomous software system scans and controls Pythom rockets and space vehicles. The software monitors onboard instruments, life support systems, spaceship material, and space weather. Jonathan predicts repairs, trajectories, assists in telemedicine and much more.

3D and AR

Spin, zoom and investigate Eiger in 3D, or see the rocket at full scale in augmented reality using your tablet or mobile.

* AR requires iOS 13, iPadOS 13, ARCore 1.9, or higher.