TF-B1 - Stratospheric Balloon Experimental Platform
The TF-B1 stratospheric balloon is a versatile high-altitude experimental platform designed for several-hour flights to altitudes around 30 km. It serves as a universal carrier for atmospheric research, technology validation, and educational projects. Built on proven ThunderFly avionics modules, TF-B1 provides reliable performance in near-space conditions, offering a cost-effective alternative to satellite testbeds.
Main design highlights
- Ready-to-use integration with TF-ATMON atmospheric monitoring system
- Redundant telemetry link via TFSIK01 communication system
- Backup by LoRa, using TFLORA01 modem
- Onboard positioning and timing with TFGPS01
- Gondola orientation tracking
- Atmospheric sensing with TFHT01 or TFHT02
- Number of sensors is higly expandable by use of TFI2CADT01
- Reliable power distribution using TFSBEC01 power module
- Designed for relatively high-power payloads up to tens of Watts
- Support for scientific instruments with TFUNIPAYLOAD01 payload interface
- Continuous pre-flight charging and power monitoring for maximal uptime
- Ground monitoring direcly by TFUSBSERIAL01
Technical specifications
| Parameter | Typical value | Notes |
|---|---|---|
| Maximum altitude | 30 km | Verified in test flights |
| Payload capacity | up to 2 kg | Depends on balloon size and helium fill |
| Flight duration | 2–4 hours | Depending on ascent rate and burst altitude |
| Ascent rate | 5–6 m/s | Typical for 2 kg payload with 1200–1600 g latex balloon |
| Descent system | Parachute recovery | Automatically deployed after burst |
| Operating temperature range | –60 °C to +40 °C | Electronics rated for stratospheric conditions |
| Power supply | Li-ion battery pack, 7.2 V nominal | Managed by TFSBEC01 |
| Telemetry | TFSIK01 (primary), TFLORA01 (backup) | Redundant communication systems |
| Positioning | TFGPS01 GNSS receiver | Continuous location and altitude tracking |
| Sensor integration | TFHT01 / TFHT02 / TF-ATMON | Atmospheric and environmental sensors |
| Data logging | Onboard SD storage + real-time telemetry | Supports full mission replay |
| Structure | EPP/foam gondola with modular avionics bay | Shock-resistant and lightweight |
| Launch method | Free balloon launch with tether release | Compliant with national aviation regulations |
| Recovery | GNSS-based tracking beacon | Enables field retrieval |
Applications
Atmospheric research
TF-B1 enables high-resolution measurements of temperature, humidity, and gas composition in the stratosphere. Using ThunderFly’s TFHT01 and TFHT02 sensors, vertical atmospheric profiles can be collected for improved weather prediction models and climate studies.
Aerospace and materials testing
The balloon gondola provides near-space conditions such as isolated environment, extreme temperatures, and increased radiation. This environment is ideal for testing spacecraft components, electronics, and materials before deployment in orbit.
Educational and outreach missions
TF-B1 offers an accessible way for students and researchers to conduct real high-altitude experiments. Short-duration flights allow hands-on experience in instrumentation, avionics, and atmospheric sciences.
Reference flights
TF-B1 has been successfully deployed in multiple missions:
Professional support
Professional support for the ThunderFly TF-B1 stratospheric balloon platform is commercially available from ThunderFly s.r.o.. For inquiries, contact us at info@thunderfly.cz.