Design your spacecraft. Start with the numbers.
Run mission calculations in your browser, then carry the results into ENKI to explore the next design trade.
Free to start · no card
ENKI AI Space Studio
Meet ENKI AI: design a whole mission by talking to it
It’s an AI spacecraft-design studio. Describe a CubeSat and it sizes the mission with you, running the calculators, tracking a live design state, sketching the bus in 3D, and explaining every number. It’s the fastest path from a rough idea to a sized, sanity-checked design.
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Conversational design
Describe a mission in plain language; the AI designs it with you, turn by turn.
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Runs the real tools
It calls HawkLogic’s calculators as tools: the same physics the free tools run.
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Live design state
Parameters and calculations collect in a running mission-design state.
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Sees in 3D + charts
Sketches the spacecraft bus in 3D and answers with diagrams, charts, and math.
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Checks itself
Auto-runs a constraints check each turn and flags violated margins and inconsistencies.
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Picks up where you left off
Sign in and your design threads persist; resume a mission any time.
Free spacecraft calculators
Run the numbers, right in the browser
Twenty pure-physics calculators for the mission-design questions satellite teams keep asking: power, links, Δv, drag, radiation, compliance. Cited constants, no backend, free. From nineteen of them you can carry the whole calculation into the AI studio and keep designing.
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Spacecraft Power Budget
Solar array, battery, and power-system mass for a LEO mission.
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Comms Link Budget
EIRP, path loss, C/N₀ and margin with ITU-R rain fade. S–V band.
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Δv & Maneuver
Propellant and burn time for a maneuver from the rocket equation.
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Deorbit & Lifetime
Check a disposal orbit against the FCC 5-year rule & ESA Zero Debris.
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Radiation Dose
Total ionizing dose behind shielding over the mission lifetime.
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Orbital Decay & Lifetime
Orbital lifetime and days to reentry from a King-Hele drag model.
Products
Flight-ready when you are
Past the sizing tools, we build the production software that flies the mission. Start with ICARUS OS; more products are on the way.
- Available now
ICARUS OS
Flight software for CubeSats
A deterministic CubeSat onboard-computer platform: a custom real-time operating system (RTOS) with space-standard CCSDS telecommand and telemetry, 5-level fault detection, isolation and recovery (FDIR), and memory-protection-unit (MPU) task isolation. ~68 KB flash, ~5.6K LOC on ARM Cortex-M7, with an open-source kernel.
- Custom RTOS · ~68 KB flash, ~5.6K LOC
- CCSDS telecommand + telemetry
- 5-level FDIR autonomous fault recovery
- Open-source kernel · icarus-os-core (Apache 2.0)
- In development
ICARUS Reaper Mark I
Vehicle-adaptive avionics for uncrewed aircraft
HawkLogic's uncrewed-aerial-vehicle (UAV) line; Mark I is its first platform. A vehicle-adaptive UAV and autonomy avionics platform, not merely a flight controller and not a quad-only board: two double-sided rigid boards inside one 59.0 x 48.4 mm footprint, designed to carry deterministic primary flight control, onboard perception and video compute, sensing, protected power, communications, non-removable black-box evidence, an out-of-band recovery supervisor, and motor-class command channels with Safety ESC Controllers enforcing local limits at their own motors. Airframe specificity lives in a machine-readable vehicle and effectors model with measured actuator response rather than a mixer hard-coded to one geometry, and authority is partitioned so no single compute path is the sole authority. In active development, architected to run ICARUS ReaperOS, the aerial-avionics OS built on the ICARUS OS Core deterministic kernel lineage alongside ICARUS Prime rather than derived from it.
- Two boards, one 59.0 x 48.4 mm footprint, carrying flight control, perception, comms, sensing, power, evidence and supervised motor authority
- Vehicle-adaptive: the airframe is a machine-readable model with measured actuator response and bounded control allocation, not a firmware fork per aircraft
- Three layers of authority plus an out-of-band recovery supervisor that flight and failover never depend on
- ICARUS ReaperOS: aerial avionics built on the ICARUS OS Core kernel lineage, alongside ICARUS Prime rather than derived from it
How we think
Determinism
Flight software can't be statistical. Every cycle accounted for, every deadline met, every command dispatched on time. ITCM-resident hot paths and a hard real-time scheduler under the hood.
Safety
Hardware-level fault isolation across the whole stack. Per-task MPU regions, 5-level fault escalation, hardware CRC monitoring, SEU-tested, MISRA-C on the roadmap. Evidence, not promises.
Long-term
A mission is a long-term commitment, not a launch event. Ground-loadable configuration. State that survives resets. Built to keep flying reliably through contact gaps and the whole operational life.
Latest from the Avionics Desk
Field notes from the flight software bench.
How to build a CubeSat power budget: solar arrays, batteries, eclipse
Load tables by mode, eclipse fraction, solar-array sizing with EOL degradation, battery depth-of-discharge, and a worked 6U example you can reproduce.
When is my satellite overhead? TLEs, SGP4, and pass prediction
How a Two-Line Element set and the SGP4 propagator become ground-station pass windows (AOS, LOS, elevation masks, max elevation) and why TLE freshness is the whole accuracy story.
The FCC 5-year rule: will your CubeSat come down in time?
Orbital decay physics, ballistic coefficient, solar-cycle sensitivity, the FCC 5-year post-mission disposal rule, ESA Zero Debris, and remediation options.
Let's talk.
Whether you're building something that needs to fly,
or something that needs to scale.
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