flight-model-realism #2

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kieran merged 4 commits from flight-model-realism into main 2026-07-25 13:19:01 -07:00

Conversation 0 Commits 4 Files changed 30 +1701 -65

kieran commented 2026-07-25 13:18:56 -07:00

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kieran added 4 commits 2026-07-25 13:18:56 -07:00

Add Fabric 26.2 compatibility 4a5c89f0cc

Add ok-planner scaffolding and five-inch flight simulation spec 4a565f2f37

Build Fabric 26.2 in CI ... fcb1899953

The fabric-26.2 module was added to settings.gradle and is already picked
up by the release workflow, which builds every subproject and uploads all
jars from build-output. CI's matrix was never extended to match, so 26.2
shipped in releases without a single CI build behind it.

Make the flight model feel like a real five-inch quad ... 301e94344a

Thrust was linear in throttle, so at 6.2:1 thrust-to-weight the craft
hovered at 13% stick: the entire descent range was the bottom eighth of
the stick, and half the throw was spent before reaching 2g. Rotor thrust
actually grows with the square of rotor speed, so make it quadratic and
pin the throttle curve through (0, zero), (throttleMid, exactly 1g) and
(1, full thrust). throttleMid now literally means the stick position that
hovers, at any thrust-to-weight.

Remove the motion-lift term, which cancelled up to 25% of gravity once
the craft was moving horizontally. It had no physical basis and was the
main source of the floaty feel at speed.

Rebaseline the craft: 8:1 thrust-to-weight (ceiling raised to 12), 0.72 kg
all-up weight, 25/40 ms motor spool, and drag coefficients 2-3x lower.
Resulting envelope is a dead-stick fall at 18 m/s, ~110 km/h cruise and
~156 km/h pitched hard. High-altitude thrust loss drops from 45% to 20%.

Config schema v4 rebaselines craft physics tuning, since the old values
describe a craft model that no longer exists. Camera angle, gravity,
rates, throttle curve and controller bindings are preserved.

kieran merged commit f6ae510579 into main 2026-07-25 13:19:01 -07:00

kieran referenced this pull request from a commit 2026-07-25 13:19:03 -07:00

Merge pull request 'flight-model-realism' (#2) from flight-model-realism into main

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kieran/fpv-freecam!2

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