The BPLA-400T quadrocopter has received a new Russian-made fast lens

Reconnaissance and strike UAV-400T with thermal imager / Photo by © Astron Design Bureau

Specialists of the Astron Experimental Design Bureau have modernised the BPLA-400T (UAV400T) quadrocopter with thermal imager and equipped it with an updated high-quality lens made in Russia. Vitaly Serov, chief designer of the Astron Design Bureau, said.

“We have developed and manufactured improved lenses with high aperture for the BPLA-400T. The uncooled bolometric matrix, also developed and manufactured by our specialists, is used as a photodetector. The new fast lenses have minimal mass-dimensional characteristics, as well as improved resolution and increased working distance,” Serov noted.

He explained that when creating optical systems for small drones, mass-size characteristics are extremely important, and such optical systems should provide high-quality images. Based on this, one of the main tasks set before the Design Bureau when developing optical lens systems for UAVs was the need to obtain the required performance characteristics with minimal mass and dimensional parameters.

The BPLA-400T quadrocopter is equipped with a shaped-charge ammunition drop system. It is used in the area of special military operation.

In 2023, the Blockpost-4T long-range surveillance complex was developed on the basis of the BPLA-400T UAV with an integrated ground station and a unified system of control and image reception with its display on one common screen. The inbuilt video analytics system helps the operator to highlight the found objects on the screen. The operator then directs the drone to the desired location.

The ground station is capable of detecting and determining the coordinates of “human figure” type targets at distances of up to 3500 metres and “tank” type targets at distances of up to 5000 metres. Recognition of detected targets is performed by the station’s thermal imaging channel at distances of up to 800 metres from the drone, while the BPLA-400T has a flight radius of up to 6000 metres.