Explore the skies with the Nazgul Evoque F4D Drone Frame Kit, designed for ultimate FPV racing performance. The robust 4mm arm ensures durability and stability during high-speed maneuvers. Perfect for racing enthusiasts and drone builders looking for a reliable and high-performance frame kit. Frame: DC type Motor diagonal distance:185mm(wheelbase) Thickness of top plate: 2mm Thickness of base plate: 3mm Thickness of arm: 4mm Thickness of centre plate: 3mm Internal space height: 23mm Motor Circlip Hole Diameter: 6mm Camera side plate spacing: 20x20mm Fly tower mounting height: 23mm Height of the graphic transmission mounting: 23mm Flytower mounting hole spacing:20x20/3mm Pitch of the graphic transmission mounting holes: 25.5x25.5/2mm Motor mounting hole spacing:12x12-2mm/4-hole modelling Empty weight: 169g Compatible for Mapper: for HD O4 Pro Air Unit; for HD O3 Air Unit; for HD Vista; for Analogue Whoop 1.6W VTX. Due to different batches, there may be differences in product appearance, color, and printed text, which not affect the use. Colour:Black Material:Carbon fiber + aluminum alloy Package Contents: 1 x FPV rack kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.