Stratospheric Balloon Flight Test
for Satellite Hardware
StratoStar flies your satellite hardware to 60,000–100,000 ft on a stratospheric balloon and returns real flight data — and the hardware — in 72 hours. TRL 5 to TRL 7 in a single campaign. Firm-fixed price, published flight dates, 99%+ recovery.
Flight Test Services
Flight Qualification Service (FQS)
Rapid flight test for space components. 2–6 lb payload, 80,000–100,000 ft altitude, 2–3 hour flights. Firm-fixed price, quoted in two business days.
Learn About FQS →Integrated Flight Service (IFS)
Full-mission flight test for complex space systems. 4–80 lb payload, sustained altitude with Starlink real-time telemetry and commanding. Firm-fixed price, quoted in two business days.
Learn About IFS →100K ft
Max Altitude
2–80 lb
Payload Range
2–6 hrs
Flight Duration
1–3 mo
Turnaround
Private missions carry payloads up to 80 lb — beyond the 20 lb rideshare limit. Request a Private Mission →
What Is a Stratospheric Balloon Flight Test?
A stratospheric balloon carries your hardware to 60,000–100,000 ft — into near-space — and holds it there while it runs. Your payload sees near-vacuum, −60°C to −70°C, cosmic radiation and real RF path loss at the same time, which is the part a ground chamber cannot reproduce. Then it comes back, with the data and the hardware in your hands inside 72 hours.
StratoStar is a stratospheric balloon flight test company. We do not sell balloons or build platforms for other people to operate — we fly your hardware, on a firm-fixed price, against a published Flight Test Calendar.
Why Near-Space Flight Test
Real Environment, Real Data
Near-vacuum, -60°C to -70°C, <1% sea level pressure, cosmic radiation. Your hardware operates in an integrated, in-situ environment — not isolated in a chamber.
Speed & Certainty
A published Flight Test Calendar. Firm-fixed pricing. 1–3 month turnaround from contract to flight data. No budget surprises, no schedule slips.
TRL Advancement
A Mission Package suitable for TRL assessment. Get from TRL 5 to TRL 7 with real flight-heritage data — the proof your stakeholders need.