Physicsless part
From Kerbal Space Program Wiki
Some parts within the game are listed as having a small mass, but in the config file a flag is set "PhysicsSignificance = 1". This has the effect that in flight physics calculations such as mass and drag are not calculated for that part.
List of massless parts
Correct as of 0.23.5
- Cubic Octagonal Strut
- Octagonal Strut
- Pegasus I Mobility Enhancer
- Telus Mobility Enhancer
- Telus-LV Bay Mobility Enhancer
- Z-100 Rechargeable Battery Pack
- Z-400 Rechargeable Battery
- OX-STAT Photovoltaic Panels
- FL-A5 Adapter
- Small Hardpoint
- EAS-4 Strut Connector
- TR-38-D (Size 3 decoupler)
- Communotron 88-88
- Communotron 16
- Place-Anywhere 7 Linear RCS Port
- RV-105 RCS Thruster Block
- Double-C Seismic Accelerometer
- PresMat Barometer
- sensorGravimeter
- sensorThermometer
- spotLight1
- spotLight2
- stackPoint1