Rocket recovery

Figure 22. MSS rocket recovery at Dugway Proving Ground...

Pollution Prevention. Procedures haven been developed for recovery of composite ammonium perchlorate propellant from rocket motors, and the treatment of scrap and recovered propellant to reclaim ingredients. These include the use of high pressure water jets or compounds such as ammonia, which form fluids under pressure at elevated temperature, to remove the propellant from the motor, extraction of the ammonium perchlorate with solvents such as water or ammonia as a critical fluid, recrystalli2ation of the perchlorate and reuse in composite propellant or in slurry explosives or conversion to perchloric acid (166,167). 

RAAP RCRA RDM RDX RIP ROD RWM Radford Army Ammunition Plant Resource Conservation and Recovery Act rocket dismantling machine cyclotrimethylenetrinitramine (an energetic material) request for proposals record of decision rotary washout machine... 

Q) Rocket Sled Recovery Method. The purpose of this test is to make a "soft recovery of artillery projectiles for their examination. In this test both a projectile and rocket-propelled sled are moving in... 

Mem No 22 (1959), entitled "Soft Recovery of Artillery Shell by Rocket Sled Method ... 

As discussed previously, in many propulsion systems the recovery of a large fraction of the dissociation energy in the nozzle expansion through recombination is difficult to achieve. While the assumption of frozen flow with respect to recombination reactions appears necessary for many heat transfer rocket nozzle expansions, it is possible that condensation phenomena are sufficiently rapid to provide near equilibrium flow with respect to phase changes. For this special possibility, phase equilibrium in the presence of frozen dissociation, it has been shown theoretically (48) that the performance in terms of specific impulse of propellants containing light metallic elements can exceed the performance of hydrogen. 

Exposing a solvent that has been used to extract explosive contaminants to heat and pressure raises serious safety considerations. In fact, the distillation column used to recover acetone often is referred to as an "acetone rocket." Nevertheless, the Army believes that full-scale solvent extraction would be feasible if a safe, efficient, alternative recovery method were developed. 

RCM RCRA rocket cutting machine Resource Conservation and Recovery Act vx a nerve agent... 

However, as of the writing of this report, the Resource Conservation and Recovery Act (RCRA) permit for the D-100 at BGAD was in process. Also, the committee was not aware of any previous use of the D-100 or related systems for destruction of rocket motors. 

The extraction and ingredient recovery method provides an environmentnlly acceptable alternative to traditional open burning and destruction of pyrotechnics. CO2 solvent is nontoxic, nonflarnrnable, nonconosive, inexpensive, and does not generate arty additional toxic or hazardoirs wastes. The solvent is totally inert when it is corrfined, pressurized, and possibly heated in direct contact with an energetic propellant or mimition within a rocket... 

Since the empty rocket enters the water with the nozzle down, air is trapped in the upper end to float it upright until one of two recovery vessels, summoned by a radio beacon and flashing light, attaches lines to tow it back to the launch center. There the booster is taken apart and the rocket segments are shipped to the Utah factory, where they are cleaned out, inspected for cracks, pressure-tested, relined, reloaded, and reshipped to the site. There the booster is refurbished and reassembled to fly again. 

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