Motor Type 137G60-12A is: 137 = Total Impulse in Newton-seconds; G = NAR motor designation; 60 = Average Thrust in Newtons: -12A = Maximum Adjustable Delay time in seconds.

Casing P38-1G is: P38 = 38mm (1.5in.) Diameter; 1G = Number of fuel grains.

Delay Times are delays from motor burnout to ejection about 10% set using the Delay Adjustment Tool (ProDAT).

Motor Weight is the Motor Casing + Delay/Eject Module + Reload Module.

Fired Weight is the weight of the Motor Casing + used modules after firing.

Length Overall is the Motor Casing length + the Reload Module shoulder (3/8'' (10mm)).

Max Weight is the nominal maximum rocket + motor weight based on 5:1 average thrust to weight ratio.

FOR USE ONLY BY CERTIFIED HIGH-POWER ROCKETRY USERS 18 YEARS OF AGE OR OLDER.
FLAMMABLE MATERIAL - KEEP AWAY FROM OPEN FLAME, CIGARETTES OR OTHER HEAT SOURCES AT ALL TIMES.

Pro38 High-Power Reloadable Rocket Motors are professionally engineered propulsion systems designed for safe use, high performance, ease of assembly and high reliability. The Pro38 system also features a unique user-adjustable time delay. Reloading is a quick, easy, 3-step operation. Select and adjust the time delay, slide the forward closure into the liner sleeve, and thread the assembly into the motor case.

Each motor is equipped with a full-length delay grain which provides the delay time shown in the motor designation. This delay may be reduced by 3,5,7, or 9 seconds as required down to the minimum delay time allowed for the motor type. Refer to the following table to select the proper adjustment for your application:

Remove the delay/ejection module (Figure 1) from the reload kit liner. Return the reload kit to the package and store safely away during the delay adjustment operation. Check the drill guide and drill holder (Figure 2) for debris and clean if required before proceeding.

Select the delay adjustment desired, rotate the drill holder to the appropriate notch in the drill guide and seat the drill holder tab into the drill guide notch.

Holding the drill guide and drill holder together in one hand, insert the delay module into the drill guide cavity until the drill bit touches the delay material. Rotate the drill holder clockwise while applying light pressure. Drill into the delay material until the drill guide bottoms out against the delay material. Rotate the drill for several more revolutions in order to clear the delay material from the hole.

Remove the delay module from the guide. Empty any residue from the module.

For safety, we recommend that you dispose of the delay residue by soaking it in water for a minimum of 1 hour then discarding the residue. A small zip-lock bag or plastic container filled with water is ideal and will safely dissolve the oxidizer from the delay material. This aqueous solution is not harmful to septic or sewage systems.

CAUTION
Work in a tidy area, away from other rocket motors and materials, well away from any open flame or heat source.

Perform delay adjustments in the field during rocket preparation. Delay adjustments are irreversible, and safer if done outside.

NOTE: If using an electronic recovery system, remove the white plastic disc from the end of the delay/ejection module and transfer the powder to your remote ejection charge holder and follow the recovery system instructions. Reinstall the module into the reload assembly.

Inspect the motor casing for damage. Discard if damaged. Modification of the casing can cause property damage or result in serious personal injury.

Leave the protective cap on the nozzle until you are ready to install the igniter.

Using a gentle twisting motion, insert the delay/ejection module into the forward end of the plastic liner as far as it will go. A small gap between the forward end of the liner and the shoulder on the delay/ejection module as shown (Figure 3) is normal.

Insert the reload kit into the rear end of the motor casing and thread into the casing. Tighten firmly by hand. The assembly is designed to have a small gap between the thrust ring and the rear end of the motor casing. If the gap (Figure 4) is more than 1.6 mm, check the assembly carefully and re-assemble.

Note: if you find assembly difficult by hand, you may carefully grip the reload kit thrust ring with slip-joint pliers for assembly or removal.

NFPA 1127 - Code for High Power Rocketry ('95 ed.) states the following:

''2-12.4 A person shall install an ignition device in a high-power rocket motor at the launcher or within the area designated by the safety monitor. The rocket shall be pointed in a safe direction during and after installation of the ignition device.''

This rule must be followed when removing or installing igniters for ANY reason.

Carefully uncoil the igniter leads. Remove any kinks or twists and straighten the wires for about 60 cm from the igniter head. Remove the yellow nozzle cap from the motor and feed the shunted ends of the igniter leads through the inside of the nozzle cap and out through the hole. Remove igniter sleeve.

Insert the igniter head into the nozzle and push until it stops against the top of the motor core. With the igniter in this position, bend a loop into the igniter leads one cap length from the nozzle exit (Figure 4).

Slide the nozzle cap up to the loop made in the previous step and firmly push the yellow nozzle cap over the nozzle to retain the igniter.

Remove the shunt and separate the wire leads ONLY while the rocket is installed on the pad and the launch control system is rendered safe (i.e. disarmed and shunted where applicable).

WARNING
The yellow shunt cap must remain in place on the igniter leads until the rocket is placed on the pad and is ready for igniter hook-up. If the cap is lost or missing, twist the bare igniter leads together several times BEFORE proceeding with igniter installation. NEVER check continuity of an electric igniter after it has been installed in a rocket motor unless done remotely from launch control while all personnel are in the safe location for rocket launch.

WARNING
Never store rocket motors with igniters installed. Do not install igniters until the rocket motor is installed in the rocket vehicle and the rocket vehicle is completely prepared and ready for launch. If weather, safety or other conditions result in a delay of the launch, disconnect all igniters from the launch system and replace the shunts. If the launch is aborted for any reasons, remove the igniters from the motors and install the shunts.

Unscrew the reload kit from the motor casing and discard - there are no reusable parts. If the delay module remains in the motor casing after removal of the reload assembly, push it out through the forward end of the motor case with a wooden or plastic tool. Be careful not to dent or scratch the motor casing in any way. The use of metal tools is NOT recommended.

Ordinarily, the motor casing will not require any post-flight cleanup. In the event that any combustion residue remains, the casing should be cleaned as soon as possible with hot soapy water and a non-abrasive cloth. When not is use, store the motor casing in its original package for protection. Care must be taken not to dent the motor casing or to damage the internal threads.

CAUTION
Your Pro38 rocket motor may be hot after firing. Allow the motor to cool COMPLETELY before proceeding.

Cesaroni Technology Incorporated ('CTI') certifies that it has exercised reasonable care in the design and manufacture of its products. We do not assume any responsibility for product storage, transportation or usage. CTI shall not be held responsible for any personal injury or property damage resulting from the improper handling, storage or use of their products. The buyer assumes all risks and liabilities and accepts and uses CTI products on these conditions. No warranty either expressed or implied is made regarding Pro38 products, except for replacement or repair, at CTI's option, of those products which are proven to be defective in manufacture within one (1) year from the date of original purchase. For repair or replacement under this warranty, please contact your point of purchase. Proof of purchase will be required. Your province may provide additional rights not covered by this warranty.

copyright 2001 Cesaroni Technology Incorporated. All Rights Reserved. All logos are property of their respective owners.

After opening the package, reading this warranty and using this Pro38 product, you acknowledge that you have read, understood and agreed to the terms and conditions contained herein. If you do not agree to the terms and conditions of this warranty, please return the unused product in the original packaging to your dealer for an exchange or credit.

No warranty, either expressed or implied is made regarding Pro38 products, except for replacement or repair, at CTI's option. Only those products which are proven to be defective in manufacture within ninety (90) days or one year, (applicable as described below), from the date of original purchase qualify. If your inquiry is regarding missing parts, please contact your dealer. Note: Your state/province may provide additional rights not covered by this warranty.

Pro38 Motor Hardware (Reloadable Motor Cases).

Covered one (1) year from date of purchase; motor casing must bear Pro38 logo - Ejection of forward or aft closure, casing bulges, case rupture. Not covered: Forward or aft closure gas leakage (o-ring leakage) and r resulting damage/degradation, degradation of casing artwork or anodized finish, hardware used with non-recommended reload kit or otherwise modified in any way.

Pro38 Reload Kits.

Covered one (1) year from date of purchase - Failure of delay to ignite or to remain lit (i.e., partially remaining unburned delay element), ejection of nozzle insert, missing or defective parts. Not covered: Failure of propellant to ignite, any failure of recovery system deployment not the result of delay element extinguishment, reload kits used without recommended motor case, reload kits not used in accordance with instructions or modified in any way.

Limitation of Liability.

CTI certifies that it has exercised reasonable care in the design and manufacture of its products. Once sold, we cannot assume any liability for product storage, transportation or use. CTI shall not be held responsible for any property damage (including loss or damage to rocket vehicles, payloads or equipment) or personal injury whatsoever arising from the handling, storage, use or misuse of our product. The buyer assumes all risks and liabilities and accepts and uses Pro38 products on these conditions.