X-Class Power — 5215 Motors, 12S2P Pack, and a Startup Fix — SITL Forge - FPV Laboratory Steam update #798828

This build pushes the workbench into proper X-class territory: two new 5215 motors, a 12S pack to feed them, and the frame mounts to bolt them on. New...

Steam App
SITL Forge - FPV Laboratory (4533290)
Event type
patch note
Published
1 August 2026 - 12:38:24 UTC
Source
steam_community_announcements
This build pushes the workbench into proper X-class territory: two new 5215 motors, a 12S pack to feed them, and the frame mounts to bolt them on. New motors — 5215 X-Class Both are modelled from real manufacturer bench data, not estimates. Same 52×15 stator and 344.5 g weight — the winding is what you choose: 5215 500KV — 8S, ~3.3 kW peak, 7.5 kg thrust on a 13×9×3 5215 300KV — 12S, ~3.4 kW peak, 7.4 kg thrust on a 13×9×3 Four of either lands you around 30 kg of static thrust. Pick the winding that matches your pack, not the other way round — the sim will tell you when you get it wrong. New battery — 12S2P Li-Ion 24× 18650 cells: 12S, 6000 mAh, 1240 g. It's the heaviest pack in the build list by a wide margin, and it's meant to be — pair it with the 300KV and watch what the extra mass does to your hover throttle. F...

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