Flying E-Flite airplanes indoors is certainly possible, but it largely depends on the specific model you have and the size of the indoor space available. Many E-Flite models are designed for both indoor and outdoor flying, particularly those that are small in size and lightweight. Models such as indoor park flyers are well-suited for indoor environments due to their low wing loading and ability to operate in confined spaces.
Before flying indoors, it is important to ensure that the area is clear of obstacles and that you have enough room to maneuver the aircraft safely. Some larger models may require more open space and are better suited for outdoor flying. Additionally, flying in an indoor arena or gymnasium that allows for model aircraft can enhance your experience and ensure safety.
Lastly, the specifications and recommendations for each specific E-Flite model can usually be found on the current webpage, where you can check the guidelines for indoor flight suitability. Always follow safety precautions and enjoy your flying experience.