Getting a new aerospace system ready for flight testing involves more than finding an aircraft and scheduling a mission.
Whether you’re developing a sensor, communications system, antenna or experimental payload, that technology needs to be properly integrated with the aircraft before testing can begin. Physical mounting, power requirements, data collection and operational safety all have to be considered.
Effective flight test integration addresses potential issues before first flight, while ensuring the aircraft, payload, instrumentation and test objectives are aligned from the start.
So what happens between deciding a system is ready for airborne evaluation and getting it into the air?
Defining the Flight Test Objectives
Before any equipment is installed, the team needs to understand what the flight test is intended to accomplish.
A company developing a communications system may need to evaluate signal performance at different altitudes or distances. A sensor manufacturer might want to see how its equipment performs under specific flight conditions.
Those objectives help determine the aircraft, instrumentation, flight profile and data requirements for the test. Defining them early also reduces the risk of completing a flight without collecting the information engineers actually need.
Selecting the Right Aircraft Platform
Not every aircraft is suitable for every flight test program.
Payload size and weight, mounting locations, electrical power, aircraft performance and instrumentation requirements can all affect platform selection. Some programs require externally mounted pods, antennas or sensors, while others involve systems installed inside the cabin.
Flexibility is especially valuable during developmental testing. Equipment configurations and mission requirements can change as engineers learn more, so an adaptable aircraft platform can make it easier to adjust the test program as development progresses.
Integrating the Payload With the Aircraft
Once the aircraft and test requirements are established, the physical and technical integration work begins.
Aircraft payload integration can involve mounting structures, electrical power, communications interfaces, antennas, data connections and instrumentation. Externally mounted payloads may also require consideration of attachment points, aerodynamic effects and aircraft compatibility.
The goal is to create a configuration that supports the test objectives while meeting applicable aircraft safety and operational requirements.
Addressing these details before flight can also reveal integration challenges that weren’t apparent when the technology was being tested on the ground.
Preparing for Data Collection
Getting a system airborne doesn’t accomplish much if the test doesn’t produce useful data.
Depending on the program, instrumentation may capture system performance, environmental conditions, aircraft position, flight parameters or communications data. Some tests require real-time monitoring, while others rely primarily on recorded data for analysis after landing.
The data collection plan should be built around the questions the test is intended to answer. Establishing those requirements during integration helps prevent a successful flight from becoming an unsuccessful test because critical information wasn’t captured.
Ground Testing Before Flight
Before airborne testing begins, the integrated system needs to be evaluated on the ground.
This may include electrical checks, communications verification, instrumentation testing and functional evaluations. The team also needs to confirm that the installation meets applicable safety requirements and is ready for the planned flight conditions.
It’s an important opportunity to find problems while they’re still relatively easy to solve. A communications interface or data recorder that isn’t working properly is much better discovered on the ground than after the aircraft lands.
Coordinating the Flight Test Mission
Once integration and ground checks are complete, the team can prepare for the mission itself.
Flight planning accounts for test objectives, aircraft capabilities, required conditions and applicable airspace or operational restrictions. The flight crew and technical team also need a shared understanding of the test sequence and the data that needs to be collected.
Good coordination helps ensure the available aircraft time is used effectively and the mission produces the information the development team needs.
A More Direct Path to Airborne Testing
Flight test integration is where a technology’s development requirements meet the realities of operating on an aircraft.
G&G Aero works with aerospace and defense organizations to manage that transition using modified aircraft designed to support a range of testing requirements. Our capabilities include payload integration, podded flight testing, antenna testing, captive carry and developmental flight testing.
By considering aircraft compatibility, payload installation, instrumentation and mission requirements early, teams can reduce avoidable delays and get to meaningful airborne data faster.
If you’re preparing a new system or payload for flight testing, contact G&G Aero to discuss your requirements and the path to first flight.
