Balance Band Validation
The below-midplane mass band was set at 40–48%. The Rev A aluminium assembly calculates to 42.6%, with the centre of gravity 0.2 mm above the geometric midplane.
A shift knob's balance changes how the shift feels more than its total mass does. CORVO-001 targets a neutral-to-low balance: enough mass carried low to keep the knob planted, without making the crown feel hollow.
With the steel insert seated low in the body, the aluminium assembly places 42.6% of its mass below the Z 32.0 mm midplane and its centre of gravity at Z 32.2 mm, effectively on the midplane, biased ever so slightly high by the crown volume.
Technical notes
- Approved balance band: 40–48% of assembly mass below the midplane.
- Rev A aluminium result: 42.6% below midplane, CoG at Z 32.2 mm.
- Titanium cavity study: tightening the access channel to Ø8 mm brings the titanium variant to ~40.4% at ~312 g, inside the band.
Decisions
- The earlier 55–60% below-midplane ambition was formally replaced. It is not achievable inside the approved envelope without compromising the exterior.
Open questions
- Whether calculated balance matches perceived balance can only be answered by physical prototypes.
Next step
Revise the adapter bore to protect the neck wall.
Prototype development. Not in production and not available to order.