signalraketter

Signalraketter are pyrotechnic devices designed to produce a bright, visible signal for communication or distress indication. They are used to mark a position, attract attention, or request help in maritime, aviation, and outdoor contexts. They come in several forms, including handheld flares launched from a pistol-type device and parachute flares deployed from ships, aircraft, or ground launch systems. Color codes and brightness vary by country and purpose, with common signals including red, green, white, and orange.

In operation, signalraketter are fired or launched to emit a timed plume of light and, in many designs, a parachute descent to extend visibility. They are intended for short-range signaling and are typically used in conjunction with other safety and communication measures. Some models emit audible sounds or produce colored smoke in addition to the light. They are distinguished from electronic signaling devices by their reliance on combustion and visible light rather than radio or digital signals.

Historically, signal rockets have been used for naval signaling and search-and-rescue operations since the 19th century. The development of parachute flares in the 20th century improved daylight and nighttime visibility and allowed signals to remain observable after landing.

Safety and regulation are central considerations. Signalraketter are hazardous materials in many jurisdictions and are subject to storage, handling, and disposal rules. Possession and use often require training and compliance with local laws, including restrictions on discharge near populated areas. Environmental and safety concerns have encouraged the use of non-pyrotechnic signaling alternatives, such as personal locator beacons and satellite-based distress systems.