A device designed to securely hold and operate radio-controlled (RC) engines outside of the model aircraft, car, or boat they are intended to power. This apparatus typically incorporates methods for fuel delivery, exhaust management, and crucially, performance measurement. For example, such a fixture may include sensors to measure rotational speed (RPM) and torque, enabling the calculation of horsepower.
The utilization of these devices offers significant advantages in engine development, tuning, and maintenance. Precise data regarding engine output can be gathered in a controlled environment, leading to optimized performance and increased engine lifespan. Historically, these tools were rudimentary, often constructed from simple clamps and improvised fuel systems. Contemporary versions employ sophisticated electronic sensors and data logging capabilities.