The launcher 272 has a barrel door 274 that is attached to the barrel 270 by pivot hinges 276 and 278. Likewise the breech valve lever can be positioned parallel to the launcher barrel with the end of the lever pointing toward or away from the muzzle. The barrel 254, the breech valve 264, the door 258, the hinges 260, 262 and the swivel latch 268 have sufficient structural strength to resist the explosive forces generated by a rockets that explode within the barrel chamber. The exhaust gas force accelerates the bottle rocket unit out of the loose-confines of the bottle in a direction that is initially along the axis of the rocket stick as it was held in position by the bottle. The rotary member has two fixed rotational stop positions, which are separated by 90 degrees. It is not necessary for the lever 174 to be manually held in this closed position as the spring force holds the valve closed. You can buy the kind that don't wake up the neighbors and make you go temporarily deaf! A bottle rocket launcher apparatus for use on a ground surface comprising a barrel and a breech valve having a full open position and a full closed position, the launcher having a launcher breech end and a barrel muzzle end; a) the barrel comprising a hollow tube having an inside surface, the barrel having a barrel chamber that compromises all of the inside surface of the barrel, the barrel having a barrel length and the barrel having a barrel axis that extends parallel to the length of the barrel; b) the breech valve being structurally attached to the barrel at the launcher beech end of the barrel wherein the breech valve has a valve body with an exterior surface; c) the breech valve having an internal rotary member, the rotary member having a cylindrical or spherical shape, the rotary member shape having a cylindrical or spherical diameter, and wherein the rotary member is capable of being rotated over an angle that ranges at least between 0 to 90 degrees; d) the rotary member having a through-hole, the through-hole extending through the diameter of the rotary member, the through-hole having a through-hole axis that is located at the center of the through-hole and extends along the length of the through hole; e) the rotary member providing line-of-sight communication from the exterior surface of the breech valve to the barrel chamber such that when the breech valve is in the valve full open position and when the through-hole axis is rotationally aligned parallel with the barrel axis and when at the valve full open position, a continuous passageway opening extending from the external surface of the breech valve through the full length of the barrel chamber is provided; f) the rotary member providing blocked line-of-sight communication from the exterior surface of the breech valve to the barrel chamber when the valve is in the full closed position when the through-hole axis is rotationally aligned perpendicular to the barrel axis; and. The legs 84 are shown folded into a position where they lay parallel to and directly adjacent to the barrel axis that is parallel along the length of the barrel 86. No. How to Shoot Firecrackers and Bottle Rockets. Also, the rotary member has an attached rotary member lever that has a lever axis that extends along the length of the lever. The bottle rocket launcher 248 has a launcher barrel 250 that is attached to a breech valve 246 where the breech valve 246 has a pivot door 252, shown in a valve 246 closed position. The door 252 has a door tab 240, which is pivoted about the pivot point 242. It is not necessary for the lever 190 to be manually held in this open position to allow a bottle rocket (not shown) to be inserted into the launcher barrel 200 inside chamber (not shown) through the valve 194 passageway opening as the spring 204 has a spring 204 centerline that is offset from the member cylinder center 196.