buoyancy_check

app.divekit/mcp · Verify this server

Returns a weighting check for one rig: how much lead to add or remove to be neutral at the end of the dive, the net buoyancy at the start (full cylinders at the target depth) and the end (near-empty cylinders at 3 m), what a flooded drysuit, a failed wing or a dropped stage would do and how to recover, and advisories. Use this when a diver asks how much weight they need, whether a rig is balanced, or how a change of suit, cylinder or water moves it. Not for gas planning. cylinders take a role (single, twinset, sidemount, stage) and cylinder: a lookup_cylinders id (al80, steel12-232) or a plan_dive preset, or cylinder_size and empty_buoyancy for one not in the data. Weights are kg (lb imperial); gear weight is positive when it sinks. Omitted fields take Dive Kit defaults (en13319 water, 30 m, a 5 mm full wetsuit, a 16 kg wing, no body offset), listed in assumptions. An estimate to start from: confirm with an in-water weight check. Compare two setups with two calls. No engine call. Example: {"cylinders":[{"role":"single","cylinder":"al80"}],"exposure":{"type":"wetsuit","thickness_mm":7},"gear":[{"label":"belt","weight":6,"ditchable":true}]}