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The Chinese-Russian group PGI Technology has begun combining Kevlar thread with optical fiber, to increase the strength of the thread and resistance to breakage in loops during fiber FPV flight. They claim the tensile strength has doubled from 50 N to 100 N. 1/

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The Chinese-Russian group PGI Technology that produces spools of fiber optic cable for FPV drones reports that their cost for bulk cable has risen from 30 yuan to 250 yuan per kilometer. 1/

The Chinese-Russian group PGI Technology that produces spools of fiber optic cable for FPV drones reports that their cost for bulk cable has risen from 30 yuan to 250 yuan per kilometer. 1/

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The Chinese-Russian collaboration PGI Technology now has 18 commercial fiber optic winding machines in their facility in China, apparently with 16 more in assembly. Bulk fiber optic cable is wound onto spools for use with FPV drones.

The Chinese-Russian collaboration PGI Technology now has 18 commercial fiber optic winding machines in their facility in China, apparently with 16 more in assembly. Bulk fiber optic cable is wound onto spools for use with FPV drones.

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A new Russian concept for an FPV fiber-optic coil disc is called “Tort”. It has an internal winding held together with an adhesive compound and pre-twisting so that the cable emerges straight. The Russians claim that this results in 70% less cable breakage during flight.

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With the surging costs and sudden scarcity of fiber optic coils, Ukrainian fiber FPV use will need to be limited to missions that radio FPVs cannot perform. Killing a single Russian with a fiber optic FPV as in the video will no longer be cost-effective. 1/

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A Russian supplier of FPV fiber optic spools (up to 50 km) with setup instructions including mounting the spool at a 35° angle to the FPV frame. The Russians have typically mounted their spools parallel and well to the rear to avoid the propellers cutting the cable in flight.

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This is what Ukraine is up against with respect to fiber optic FPVs. The Chinese-Russian collaboration PGI Technologies has this installation of high speed fiber optic cable winding machines. Two shifts produce 1200 coils per shift, for 36,000 coils per month.

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Fiber optic cable is wound on a spool in a Chinese factory, for controlling Russian FPVs. It takes 50 minutes to wind 10km of fiber. The Russians claim 1300 coils were shipped last month, and the Chinese are adding more winding machines.

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Ukrainian fiber optic FPVs are apparently still struggling with breakage of the cable in flight. Prewound spools bought from China have been blamed, and Ukrainian drone units responded by beginning to wind their own spools from bulk cable. 1/

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As Ukrainian fiber optic FPVs increase in numbers, “Madyar” shows us his fiber optic winding machines and assembly of fiber optic spools for FPVs. Fiber from 50km bulk spools are wound onto printed components to various lengths with 15km the most common type. 1/

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