IDEF 2025: HT-100 Rotary-Wing Drone Sets New Standard in Tactical Endurance and Versatility.

On the occasion of IDEF 2025, Swiss manufacturer Edge presents the HT-100, an unmanned helicopter combining long-range endurance, mechanical reliability, and the integration of advanced safety systems. Designed for demanding missions in complex environments, the HT-100 is built around redundancy, simplified maintenance, and optimized energy efficiency.
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The aircraft features a dual-rotor Flettner system, removing the need for a tail rotor and reducing energy consumption by an estimated 30% when carrying heavy payloads. (Picture source: Army Recognition)

The HT-100 is powered by a 15 kW turbine engine developed and manufactured in Switzerland. Specifically designed for aviation use, it consumes only 9 liters per hour and is compatible with multiple fuel types including Jet A1, JP-5, and JP-8. This configuration ensures low vibration levels, high operational reliability, and reduced maintenance requirements thanks to circumferential lubrication and a time between overhauls (TBO) of 1,000 flight hours.

The aircraft features a dual-rotor Flettner system, removing the need for a tail rotor and reducing energy consumption by an estimated 30% when carrying heavy payloads. The absence of mechanical parts in the tail boom, along with a modular structure, facilitates transport and storage, including deployment on naval platforms.

In terms of operational capabilities, the HT-100 can carry up to 60 kg of payload, with flight durations ranging from 1 to 6 hours depending on load. It reaches a maximum airspeed of 120 km/h and operates up to 4,000 meters in altitude, withstanding wind speeds of up to 45 km/h. Take-off and landing are fully autonomous. The communication system relies on an encrypted MESH IP data link, with optional SATCOM and LTE integration depending on mission needs.

Safety is a central aspect of the HT-100's architecture. It includes a pre-programmed autorotation function with a backup electric motor, flight control redundancy via four actuators, an ADS-B mode S transponder, a FLARM system, and a full-frame parachute. It is also equipped with a detect-and-avoid capability, terrain following, front and bottom FPV cameras, and an automated return-to-home (RTH) function in case of GNSS loss.

In support operations, Anavia offers fixed-price, all-inclusive maintenance plans, with parts supplied in advance to maximize availability. All technical documentation complies with manned aircraft certification standards. Customized training is available for flight operators and maintenance personnel.

Excluding rotors, the airframe measures 2.82 meters in length, 0.72 meters in width, and 1.00 meter in height. The main rotor has a diameter of 3.75 meters. The onboard fuel tank holds 60 liters, supporting extended mission profiles.

The HT-100 reflects Anavia’s effort to deliver a reliable and modular unmanned solution aligned with contemporary operational requirements. By incorporating safety technologies commonly found in manned aviation and adapting its configuration for long and complex missions, the Swiss manufacturer positions the HT-100 as a viable platform for both civil and military applications.