boattail
Aerodynamic rear end
A boattail is the tapered rear section of a projectile, bullet, or vehicle body designed to reduce aerodynamic drag.
The shape resembles an inverted boat hull, narrowing toward the back to allow air or water to flow smoothly off the trailing edge.
Boattail bullets are prized by long-range shooters for their improved ballistic performance: The boattail design gives the round better accuracy at distance.
Launched airborne object
- ammunitionWeapon projectiles and charges
- ballisticsProjectile motion science
- trajectoryPath of moving object
- rifleLong-barreled shoulder weapon
accuracy · long-range · cartridge · sniper · muzzle velocity · hunting · military · hollow point
Rate of motion
- velocityDirected rate of motion
- accelerationRate velocity changes
- streamlinedMade smooth and efficient
- land speedTerrestrial travel rate
Bonneville · record · fast · swift · turbocharged · horsepower · racing · sprint
Remove unnecessary elements
- taperNarrow gradually toward point
- teardropSingle unit of crying
- airflowMovement of atmosphere
- slipstreamAerodynamic wake zone
wake · turbulence · laminar flow · wind tunnel · coefficient · pressure · vortex · boundary layer
Personal luxury automobile
- classic carCollectible older vehicle
- roadsterOpen two-seat sports car
- coachworkVehicle body design
- streamlinerWind-cheating vehicle design
custom · collector · 1930s · Auburn · Duesenberg · speedster · fastback · bodywork
projectile
Launched airborne object
- ammunitionWeapon projectiles and charges
- ballisticsProjectile motion science
- trajectoryPath of moving object
rifle · accuracy · long-range · cartridge · sniper · muzzle velocity · hunting · military · hollow point · caliber
speed
Rate of motion
- velocityDirected rate of motion
- accelerationRate velocity changes
- streamlinedMade smooth and efficient
land speed · Bonneville · record · fast · swift · turbocharged · horsepower · racing · sprint · pace
streamline
Remove unnecessary elements
slipstream · wake · turbulence · laminar flow · wind tunnel · coefficient · pressure · vortex · boundary layer · fluid dynamics
Buick Riviera
Personal luxury automobile
- classic carCollectible older vehicle
- roadsterOpen two-seat sports car
- coachworkVehicle body design
streamliner · custom · collector · 1930s · Auburn · Duesenberg · speedster · fastback · bodywork · fender