SPACE PIDGIN · DWG SP-HP-007
STRATOSPHERE TODAY · GEOSTATIONARY TOMORROW
SPACE PIDGIN
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30 KM DATUM
STRATOSPHERE TODAY · GEOSTATIONARY TOMORROW

The stratosphere, made reachable.

Space Pidgin flies your R&D payloads to 30 km+ on reusable balloon platforms — repeatable access to the edge of space.

See the platform → Join the first flight
From
The stratosphere
Via
Repeatable R&D
To
A space elevator

01The platform

Reusable access to the edge of space.

01 · ALTITUDE

Altitude

30 km+ — above 99% of the atmosphere. Near-space, reached on a balloon.

02 · PAYLOADS

Payloads & data

Carry instruments up, recover them, and fly again. Every flight returns data.

03 · R&D

Built for R&D

Materials, sensors, comms, atmospheric science — work that needs the edge of space.

Altitude ≈ 30 km

Where air becomes space — and the work begins.

02Design targets

Target · design goals, not yet flight-proven
Altitude
30 km+Above 99% of the atmosphere
TARGET
Payload
3 kg classModular payload bay
TARGET
Telemetry
LoRa 920 MHz + GPSReal-time downlink & tracking
TARGET
Recovery
Parachute · reusable avionicsFly, recover, fly again
TARGET
Mission
~2–3 hours per flightAscent → float → recovery
TARGET
Cost
A fraction of a sounding rocketOrder-of-magnitude cheaper access
TARGET

03Build status

Where we are now.

Built in Sendai. Bench-tested avionics, heading for first flight.

Done
Avionics uplink — ESP32 + E220 LoRa, transmit tested on the bench.
In progress
Bidirectional telemetry — two-way link between payload and ground.
In progress
Payload & sensors — BME280 atmospheric stack, in fabrication.
Planned
Tethered flight — 30 m · 500 g, targeted by Feb 2027.
Planned
Free flight to 30 km+ — after tethered validation.
Avionics bench · ESP32 + E220 LoRa
BME280 atmospheric sensor
Telemetry firmware

04Mission

Deliver the awe of space to everyone.

The stratosphere is the first step — reachable science, real data, and a view of space no one forgets.

Low Earth orbit

The frontier we're building toward.

05Team

Founder-led, from Sendai.

KO

Kazuki Okuyama · 奥山 和季

Founder & Representative Director

Mechanical & Aerospace Engineering at Tohoku University. Founded Space Pidgin in 2025 to make the stratosphere reachable, and leads a cross-functional team of three.

LinkedIn →

06Horizons

One provable step at a time.

Now

A prototype flies in the stratosphere.

Next

The first payload reaches 30 km+.

A decade

A cross-industry alliance for the elevator.

A generation

Construction of the space elevator begins.

A lifetime

A space elevator reaching the Moon and Mars.

07News

Latest updates.

08Membership

Ride along to the first 30 km.

Free · Ground Crew

Follow the build

A short monthly progress report: test results, hardware photos, and what flies next.

Get the report
Research · Companies

Reserve a payload slot

Priority on early flights for researchers, universities and companies — with flight data and integration support.

Reserve a research slot
Individuals · Founding Supporter

Put your name on it

Your name on a plate flown to 30 km, and a photo from that flight. Become one of the first.

Become a founding supporter

Reservations only — nothing is charged. We always ask before any charge, and you can cancel any time.

Monthly progress report

09Get in touch

Help us build it.

For investors, partners, suppliers, and regulators who see where this leads.

Or email spacepidgin.gia@gmail.com