F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
F42B10/02—Stabilising arrangements
F42B10/14—Stabilising arrangements using fins spread or deployed after launch, e.g. after leaving the barrel