roug - sear
- rough air
- rough airfield
- rough airfield capability
- rough airfield operations
- rough airfield response
- rough airfield tolerance
- rough field bump
- rough field capability
- rough field ride
- rough ground capability
- rough ground performance
- rough ground profile test
- rough ride
- rough runway
- rough runway criterion
- rough surface
- rough surface capability
- rough terrain
- rough terrain landing
- rough wall
- rough-field landing gear
- rough-field performance
- rough-field profile
- rough-field strut
- roughened surface
- roughly repaired runway
- roughness
- roughness category
- roughness definition
- roughness drag
- roughness increment
- roughness isolation
- roughness penalty
- roughness tolerance
- round
- round bar
- round dial
- round edge
- round jet
- round nozzle
