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

Bulk pack of 25 Quest A6-4 rocket motors with igniters.

NOTE: Model rocket motors must be shipped separately. Please either plan for more time for a ground shipment via US Mail, or request faster (more expensive) delivery.

The Super Six is our most popular kit.Over 25,000have been built and flown by schools and clubs all over the world. Available in single kits or in discount bulk packs of5 or more models.

Rocket kitsdo not include rocket motors or launch pads. We recommend and sell Quest motors for the Super Six.

All our Bulk Packs include one copier-ready set of instructions and a bag of spare parts.

The Polaris is one of our most popular kits. 24 inches long, it flies arrow-straight on B6-4 and C6-4 motors. Plastic nose cone, pre-cut balsa fins, Kevlar shock cord and Heatshield are included. Bulk packs are available for quantities of 12 or more.

Bulk packs do not include rocket motors. We recommend and sell Quest motors for the Polaris.

All our Bulk Packs include one copier-ready set of instructions and a bag of spare parts.

The Positron is a "mosquito" size model with retro-style swept fins. Unlike other tiny kits, the Positron has a streamer recovery system so you can find it after you fly it!

The Positron is available in a Bulk Pack in quantities of5 or more. Bulk packs do not include rocket motors. We recommend and sell Quest motors for the Positron.

All our Bulk Packs include one copier-ready set of instructions and a bag of spare parts.

This kit will add a booster stage to the Super SixorPolaris kits. Upper stage not included. Rocket motors are not included in this kit. A booster motor (B6-0 or C6-0) is required.

Bulk pack of 25 Quest B6-4 rocket motors with igniters. An excellent value for any large group launch.

NOTE: Model rocket motors must be shipped separately. Please either plan for more time for a ground shipment via US Mail, or request faster (more expensive) delivery.

Bulk pack of 25 Quest C6-5 rocket motors with igniters. An excellent value for any large group launch.

NOTE: Model rocket motors must be shipped separately. Please either plan for more time for a ground shipment via US Mail, or request faster (more expensive) delivery.

Three-pack of Quest motors for our K-100 Booster Stage. Igniters included.

NOTE: Model rocket motors must be shipped separately. Please either plan for more time for a ground shipment via US Mail, or request faster (more expensive) delivery.

The MicroBeacon helps you find your model in the tall grass! Requires 12v battery, MBB-12.

Note on shipping Microbeacons: Any order with one or two Microbeacons and/or MB Batteries will go out First Class Mail in a padded envelope, at a total shipping/handling of $3.00. Ignore the shipping cost on the shopping cart, which defaults to Priority Mail.This web site does NOT charge your credit card when you order; you will get a correct invoice by email when I process the order, and your card will be charged just before the order ships.

12 volt battery for the MB-12 MicroBeacon.

The SEC-5B Ejection Canisters feature a snap-top ejection charge container that holds 1.5 grams of black powder or smokeless powder. The single-use Ejection Canisters are convenient and reliable methods of deploying your recovery system.

XLEjection Canisters are for rockets with more volume to pressurize than can be done by our smaller canisters. Each Ejection Canister is tested for continuity before being packaged. Variable capacity allows you to determine how much propellant you wish to use for your particular recovery system.

The Universal Launch System Base Module is a versatile system that packs up into its own waterproof carrying case. It will fire conventional solid propellant rocket motors, single or cluster, of any size. External batteries provide 12 or 24 volts to the igniters. Add the Valve Manifold and you're filling hybrid motors.An onboard battery meter is available as an option. 100 foot cable is standard.

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. Adapters are included for all common hybrid motor fill tubes. Options include a pressure gauge and the BFV oversize fill valve.

The GOX/HV Ignition Module allows you to fill and fire non-pyrotechnic (HyperTEK) motors with your ULS system. It includes a regulator for the gaseous oxygen (GOX) tank, and a control box that connects to the ULS-M1 Base Module to deliver GOX and a high voltage spark to the motor at ignition.

• FullBoost ignition system with batteries included
• Quest Liftoff Launch Pad
• 25 Super Six kits ready for the building session
• 25-pack of Quest motors
• 3-pack of Rocket Glue

Everything you need to build and fly 25 rockets, even the batteries and glue! All you have to do to prepare is make copies ofthe instructions. You will need a roll of masking tape to fly the rockets.

SL1 Kevlar Thread is suitable for parachute shroud lines or shock cords on lightweight contest models. Pre-cut 20 foot package.

SL1 Kevlar Thread is suitable for parachute shroud lines or shock cords on lightweight contest models. We will cut any length you need at the same price as the pre-cut package. Simply order the number of feet you need.

SL2 Kevlar Yarn is suitable for shock cords on lightweight models. This is what we use in our kits. Flameproof Kevlar will not burn through like elastic shock cord. 20 foot length.

SL2 Kevlar Yarn is suitable for shock cords on lightweight models. This is what we use in our kits. Flameproof Kevlar will not burn through like elastic shock cord. We will cut any length you need at the same price as the pre-cut package. Simply order the number of feet you need.

Tubular Kevlar MicroBraid is a very fine, supple triaxial Kevlar braided cord. It is rated to 100 pounds strength and is flameproof. Excellent for shock cords in small models. 20 foot length.

The famous "As a Matter of Fact, I AM A Rocket Scientist" T-shirts! High quality 50/50 cotton/synthetic shirts, screen printed with our tasteful logo.

The GO BOX is a simple, inexpensive system that will fire any igniter. It uses any 12 volt battery (or your car battery with the optional cigar lighter plug) to provide plenty of power. The system comes with a 25 footcable that plugs into thecontrol box. Extensions are available. The removable safety key is supplied on a retracting lanyard.

The SIXPACK is perfect for clubs and large groups. It controls up to six launch pads from a central Launch Control box. Any 12 volt battery may be used to power the system. Any launch pads may be used.

1/4 inch diameter 5 foot long aluminum launch rod, in two sections with a threaded connector. NOTE: Our kits require an 1/8 inch launch rod, such as is included with the Quest Liftoff Launch Pad.

This 10 pound NOX tank is suitable for smaller hybrid motors in the H through J range. The installed siphon tube means that the tank doesn't have to be supported upside down.

This 20 pound NOX tank is suitable for all hybrid motors. Supplied with a CGA326 valve thread to match our ULS-M2 and most other hybrid launch systems. Siphon tube installed for upright operation.

The ultimate science project! The CanSat kit contains everything needed to build and program a CanSat. The kit includes a set of sensors, a telemetry transmitter, and a computer to perform atmospheric measurements. The kit is modular so it can be customized and expanded.

PLEASE NOTE: Version 2.0 of the CanSat is now available. A limited number of legacy CanSat kits are still available but the product will be discontinued when stock is gone.

The Dual Egg Capsule is a molded plastic payload capsule designed for NAR Dual Eggloft competition. The capsule is divided into two compartments by a removable double bulkhead. Requires a shoulder tube that will fit your rocket.

The Egg Capsule is a molded plastic payload capsule designed for NAR Eggloft competition. You must supply a shoulder tube that will fit into the body tube of your rocket.

Plastic molded nose cones to fit Estes BT-20 or other 18mm i.d. body tubes. Select Short Parabola (A), Long Parabola (B) or Ogive (C) shape. Includes Kevlar cord for attachment.

3 fuel grains and all parts needed for RATT Works H and I motors.

Ultra-light competition nose cone for Estes BT-5 (mini-engine) size tubing.

RATT Works H70 hybrid motor casing set. Includes end closures, casing and injector. 29mm diameter, 18 inches long.

K240 Hybrid Motor Casing Set includes threaded end closures and floating injector. Tripoli certified 8 second burn motor! NOTE: Motor diameter is 2.5 inches. Can be flown in 3 inch motor mounts with simple adapter.

HyperTEK J fuel grain is used with all HyperTEK I, J and K motors.

The 54mm HyperTEK J fuel grain is used with all HyperTEK I, J and K motor systems. FX grains produce slightly more thrust, and much more flame and smoke.

The Crablight is...well, it's a weird little pocket LED light with two independently adjustable lights. Not really sure what it's good for, but it's cute and lasts a long time. The battery is the same one used in our Microbeacon and PIT. Options include a Velcro pad and a magnet base.

This 35 pound NOX tank is suitable for all hybrid motors. Supplied with a CGA326 valve thread to match our ULS-M2 and most other hybrid launch systems. This tank is new, freshly certified and oxygen-cleaned. We install the siphons here to make sure they go all the way to the bottom.

The RATT WORKS L/M casing set includes the L500 casing, tube extension that turns it into the M900, threaded end closures, reusable graphite nozzle and injector. Fuel grain NOT included.