Products & Solutions

Dynotis ST-251

The ST-251 is a specialized tool for the "in-between" payload class. Measuring thrust up to 25 kgF, it bridges the gap between commercial drones and heavy industrial platforms. It is ideal for optimizing coaxial motor setups and large-diameter propeller efficiency.

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Dynotis ST-251

Unmatched Precision

Maximum 250 gF of Error

Dynotis provides the repeatable measurement foundation required for rigorous R&D, empowering your team to pinpoint optimal configurations with data-driven certainty. We stand behind our hardware with a promise of over 99% accuracy in thrust and torque for every unit's full-scale capacity.

Unmatched Precision

Integrated Analysis

Log it, Analyze it, Compare it.

Every design iteration is logged and tracked via our comprehensive software dashboard, allowing you to visualize efficiency curves and compare performance over time. With features like automatic test scripts and API integration, you can seamlessly integrate Dynotis test stands in to your testing procedure.

Integrated Analysis

Accelerated R&D

Stop guessing and start optimizing.

Dynotis allows your team to rapidly benchmark motor-propeller combinations and identify peak efficiency before the first flight. Our automated testing environment drastically reduces the time spent on manual measurements and prevents costly prototype attrition, ensuring your propulsion system is mission-ready in a fraction of the time.

Accelerated R&D

Certified Accuracy

For Your Customers Who Wants 'the Proof'

For requesting customers (Pro Version), load cells are tested and certified by the Turkish Standards Institution, in compliance with ASTM E2428 | DIN 51309:2022 and TS EN ISO 376:2012 | ASTM E74 standards for torque and thrust axis respectively, as well as the transducer’s measurement uncertainties, accuracy values and validation results are detailed in the referenced certificates.

Certified Accuracy

Technical Specifications

ST-251
Basic Information Model ST-251
Power Supply 5V 1A USB Type-C
Storage Temp & Humidity -20°C 〜 +60°C = ‹ 90% suggested
Operating Temp & Humidity -20°C 〜 +50°C = ‹ %75 suggested
Dimensions 160 x 267 x 665.5 mm
Net Weight ~6.5 kg
Maximum Propeller Diameter 40"
Sampling Rate 1000 Hz
Voltage and Current Voltage Range 5 - 350 V
Voltage Resolution 0,015 V
Voltage Error ±0.5%
Current Range 0 - 300 A
Current Resolution 0.02 A
Current Error ±0.3%
Thrust Thrust Range ±0.1 - 25 kgF
Thrust Resolution 0.001 kgF (1 gF)
Thrust Accuracy %99 Full Scale
Torque Torque Range ±0.1 - 25 Nm
Torque Resolution 0.001 Nm (1 Nmm)
Torque Accuracy %99 Full Scale
Sensor Measurements Maximum Rotation Speed 100 000 RPM
Motor Temperature Range -20〜+350 °C
Motor Temperature Error ±1 °C
Ambient Pressure Range 300〜1100 hPa
Ambient Temperature Range -40〜+85 °C
Measured / Calculated Values Power (W) +
Figure of Merit +
Propulsion System Efficiency (%) +
Propulsion System Efficiency (gram/W) +
Motor Efficiency (%) +
Vibration (g) +

Add-On Products

Discover Additional Modules

Dynamic Balancer Module

This software/hardware add-on enables real-time vibration analysis and precise dynamic balancing of propellers and rotors directly on the test stand. In compliance with ISO 21940, it ensures higher efficiency, reduced noise, and extended lifespan for your propulsion components.

Dynamic Balancer Module

Wi-Fi Module

Easily connect your Dynotis electric propulsion test stand to your PC via Wi-Fi, providing you with superior flexibility and a clutter-free workspace. This module allows for remote data monitoring and control, making your testing process more convenient, especially for institutions with separate test chambers and control rooms.

Wi-Fi Module

Outdoor Testing Kit

Designed to eliminate the need for expensive wind tunnels, this kit allows you to mount your test stand on a moving vehicle to simulate real-world flight conditions. It provides a hassle-free testing experience that saves time and resources while delivering accurate performance data.

Outdoor Testing Kit

Synchronous Hub

Maximize your testing capabilities with the Synchronous Hub. This central interface allows you to connect and simultaneously operate multiple Dynotis devices from a single controlling computer. Essential for complex setups, it ensures that data from all sources (including multiple test stands and the Exterior Testing Kit’s wind sensor) is recorded in synchronization. This unified control simplifies analysis and provides a comprehensive view of your system's performance.

Synchronous Hub

Co-Axial Setup

Unlock the full potential of contra-rotating propulsion with the Coaxial Setup. This comprehensive package combines a precision-engineered Coaxial Mounting Rig with the Synchronous Hub, allowing you to mount two motors on a single axis with perfect alignment. It enables the simultaneous control and synchronized data recording of both propulsion units, giving you the critical insights needed to optimize the efficiency and thrust interaction of your coaxial designs.

Co-Axial Setup

Pro Model

The Pro Model offers an optional certification package for mission-critical R&D and aerospace compliance. Each load cell undergoes rigorous testing and certification by the Turkish Standards Institution (TSE) to ensure world-class data integrity. Torque Axis: Compliant with ASTM E2428 and DIN 51309:2022. Thrust Axis: Compliant with ISO 376 and ASTM E74. All units include a formal certificate detailing measurement uncertainties, accuracy values, and validation results, providing the high-level traceability required for defense and certification-grade testing.

Pro Model

ESC Temperature Sensor

Observe the thermal behavior of your ESC with real-time monitoring. This plug-and-play sensor logs the thermal changes of your ESC during the operation, delivering high-fidelity data to your Dynotis dashboard for efficiency calculations.

ESC Temperature Sensor

Our Other Models

LARGE-SCALE ST-751
Dynotis ST-751
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SMALL-SCALE ST-101
Dynotis ST-101
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SMALL-SCALE ST-151
Dynotis ST-151
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