The AeroTech Disposable Motor System DMS is a single-use motor in kit form that is assembled by the user. All of the Aerotech DMS motors use all-disposable components. The nozzle is already installed. Propellant needs to be installed. You will need to set the desired delay time using the Universal Delay Drilling Tool (UDDT), Not Included, and then pour in the ejection charge. The Universal Delay Drilling Tool (UDDT) is required to adjust to a shorter time delay on all DMS rocket motors and is available in the AeroTech Accessories section of this website.
The L875DM-PS is a Plugged/Smoke motor. Plugged reload kits do not utilize a motor-actuated ejection charge. Plugged motors must be used in conjunction with a timer, altimeter or radio-activated recovery system.
DMS motors feature a filament-wound fiberglass casing, a glass-reinforced composite phenolic nozzle, a machined aluminum bulkhead with a built-in 3/8-16 thread for a matching eye bolt and RCSs exclusive Dark Matter™ aerospace grade composite propellant formulation. Dark Matter™ is a sparky propellant, but unlike Metalstorm™ with its higher ISP and white smoke, Dark Matter™ is a black smoke sparky motor. As with all rocket motors using spark-generating propellants, special precautions must be taken to avoid fires around the launch pad by clearing the immediate area of all combustible materials in accordance with applicable fire and safety codes.
This AeroTech motor pack comes with 1 rocket motor and 1 FirstFire™ Initiator. Requires HAZMAT shipping via UPS or FEDEX. The sale of this high power motor to persons under 18 years of age is currently prohibited by federal law. This is a High-Power motor requiring Level 2 High-Power certification through NAR or Tripoli to purchase. Orders containing this item will not be shipped until proof of age (such as a copy of a driver’s license) and proof of Level 2 certification is received. Also, this motor requires U.S. State Department Licensing (SDL) for export (international shipments).
Certified by the Tripoli Rocketry Association (TRA), the National Association of Rocketry (NAR) and the Canadian Association of Rocketry (CAR).
Motor Diameter: 2.965 inches (75mm)
Casing Length: 25.12 inches (638mm)
Total Impulse: 3800 N-sec
Average Thrust: 875 newtons
Peak Thrust: 1035 N-sec
Thrust Duration: 4.3 seconds
Delay Time: Plugged
Propellant Weight: 2472 grams
Motor Weight: 4577 grams
Maximum Liftoff Weight: Due to the variables involved, AeroTech/Quest currently does not list or post recommended maximum lift-off weights for their mid-power and high-power rocket motors. Instead, we recommend utilizing either the RockSim software available at www.apogeerockets.com or OpenRocket Simulator available at www.openrocket.info.