Ballistics Flashcards
What are the four types of ballistics?
Interior
Exterior
Aerial
Terminal
What are the interior ballistics?
(BLTPP) Barrel Wear Launcher Tube Thrust Misalignment Projectile Weight Propellant Charges
What is the difference between Exterior and Aerial Ballistics?
- All projectiles fired are subjected to Exterior Ballistics, whether it’s a 30-06, 30mm, or 155 howitzer. (wind, gravity, drag….)
- Aerial Ballistics are specific to projectiles fired from the air. (projectile jump, trajectory shift…)
What is the greatest causing error in free flight rockets?
Thrust Misalignment
What are the exterior ballistics?
(GAYWP) Gravity Air Resistance Yaw Wind Drift Projectile Drift (spinning right)
How does a crosswind effect rockets?
Rockets will seek the relative wind for targets less than 3k, causing the gunner to aim downwind; and will drift with the wind for ranges greater than 3k, causing the gunner to aim upwind.
What are the aerial ballistics?
Rotor Down-Wash
Angular Rate Error (slinging)
Bank Error
(Spin Stabalized)
Trajectory Shift (in direction of aircraft movement)
Port Starboard Effect
Projectile Jump (up or down)
(Fin Stabilized)
Propellant Force
CG
Relative Wind Effect
Will the WP compensate for rotor downwash?
Yes, it will compensate when shooting OGE. However, when shooting IGE it will not compensate for the upwash.
What two ballistics factors combine to create Port-Starboard Effect?
trajectory shift and projectile drift
What are the factors that effect Terminal Ballistics?
Fuse and Warhead Function
Impact Angle
Surface Conditions
What are some Warhead effects?
Fragmentation
Blast effects
Shaped-charge penetration
Spall effects
Incendiary effects
What is the largest contributor to dispersion for the 30mm?
Turret Bending
What ballistics are compensated for by the WP when TADS/FCR is the selected sight?
Rotor down-wash (OGE)
Trajectory Shift
Wind Drift
Gravity Drop
Projectile Drift
Projectile Jump
Relative Wind Effect
What ballistics are compensated for by the WP when HMD is the selected sight?
Gravity Drop
Projectile Drift
Rotor down-wash (OGE)
Wind Drift
Relative Wind Effect
Can pylons compensate for angular rate effect?
The aircraft pylons can compensate for up to 10 degrees per second in pitch.
