Pratt Hobbies, Inc.
Rocketry Catalog
Model Rocket Kits for Classes and Groups
 Launch Systems and Accessories

The ULS-M2 Valve Manifold attaches to a nitrous oxide supply tank and connects to control circuitry in the ULS-M1 Base Module. It allows you to fill and fire floating-injector hybrid motors. A complete set of adapters is included for all common hybrid motor fill tubes.

The solenoid valves on the ULS-M2 are custom manufactured for us, and are guaranteed not to burn out. The ULS M-1 and M-2 combination are all you need to fill and fire RATT Works, Contrail Rockets, Propulsion Polymers, West Coast Hybrids, and SkyRipper Systems motors. For K motors and above that require more separation between the pad and the hand controller, 500 foot and 1000 foot cables are available. For non-pyrotechnic motors (HyperTEK) the ULS M-3 GOX/HV Module and a fill stem are required.

RTLS-M2 upgrade options include a pressure gauge and the BFV oversize fill valve, as shown on this page. The standard RTLS-M2 has a standard fill valve.