Aerotech RMS-PLUS HIGH-POWER Reloadable Motor System RMS-38/120 Assembly & Operation Instructions

Before You Begin

• Do not modify the motor in any way, except as
described herein.
• If any parts are missing or damaged, call AeroTech at
435-865-7100.
• Use only AeroTech RMS reload kits to refurbish an
RMS motor.
• Do not interchange parts from different reload kits.
• Do not reuse any parts of the RMS reload kit.
• Save the reload kit plastic bag for the used reload kit
parts. Dispose of bag and parts properly.

Package Contents

RMS-Plus reload kit components
Complete reload delay kit
Igniter & ejection charge kit

Hardware and Supplies Required

RMS 38mm aft closure
RMS 38mm case (see RMS-Plus packaging tube label
for size)
RMS 38mm standard forward closure OR 38mm reload
adapter system (if needed; refer to RAS instructions)
RMS delay drilling tool (RDDT)
Synco™ Super Lube™ or other grease
Hobby knife or scissors
Wet wipes or damp paper towels

Preparation for Flight

1. Remove the supplied FirstFire™ igniter from the
cardboard tube and straighten the leads.
2. Strip 1/2"-1" of insulation from the end of the leads.
3. Insert the black-coated end of the igniter through the
nozzle opening and push it completely into the motor
core, until the coated end is touching the time delay
element in the modular bulkhead.
4. Using a hobby knife or scissors, cut a corner off the
supplied nozzle cap to produce a vent hole in the cap
about 1/16"-1/8" wide.
5. Press the open end of the nozzle cap over the
exposed nozzle extension to hold the igniter firmly in
place.
6. Install the motor into the rocket's motor mount tube.
Ensure that the motor is securely retained in the rocket
by using positive mechanical means to prevent it from
being ejected during recovery system deployment.
7. Prepare the rocket's recovery system and then
launch the rocket in accordance with the National
Association of Rocketry (NAR) and/or Tripoli Rocketry
Association (TRA) Safety Codes.

Post-Recovery Cleanup

NOTE: Perform motor clean-up as soon as possible
after motor firing. Propellant and smoke charge residues
become difficult to remove after 24 hours and can lead
to corrosion of the metal parts. Place the spent motor
components in the reload kit plastic bag and dispose of
properly.
1. After the motor has cooled down, unthread and
remove the aft and forward closures.
AeroTech Division
RCS Rocket Motor Components, Inc.
Cedar City, UT 84721
www.aerotech-rocketry.com

Post-Recovery Cleanup (cont'd)

2. Remove the spent components from the casing by
pushing on the nozzle end and discard. Using wet wipes
or damp paper towels, wipe the inside of the casing and
all surfaces of the aft and forward closures to remove all
propellant residue.
3. Apply a light coat of grease to all threads and the
inside of the motor case. Reassemble metal parts and
store motor in a dry place.

First Aid

Do not ignite an AeroTech motor indoors. Do not breath
fumes from the rocket motor exhaust. For a minor burn,
apply a burn ointment. For a severe burn, immerse the
burned area in ice water at once and see a physician as
quickly as possible. In the unlikely event of oral ingestion
of the propellant, induce vomiting and see a physician
as quickly as possible. The composite propellant used in
AeroTech reload kits consists primarily of Ammonium
Perchlorate and a rubber-like plastic elastomer.
Redline™ propellant also contains Strontium Nitrate,
and Mojave Green™ propellant contains Barium Nitrate.

Disposal

Pack assembled motor firmly in a hole in the ground so
that only the nozzle is exposed, away from people,
animals, buildings and flammable materials. Ignite motor
electrically from a distance of 30 feet or more.
Propellant, delay and ejection charge (if installed) will
burn until consumed. Wait until the motor has cooled off
before disassembly and cleanup.

Fire Safety

Tests show that the pyrotechnic components of RMS™
reload kits will not explode in fires and normally will not
ignite unless subjected to direct flame and then will burn
slowly. Use water to fight any fires in which AeroTech
RMS™ reload kit pyrotechnic components may become
involved: Direct the water at the AeroTech RMS™ reload
kit pyrotechnic components to keep them below their
550 deg. F autoignition temperature. Foam and carbon
dioxide fire extinguishers will NOT extinguish burning
propellants of the type used in RMS™ reload kit
pyrotechnic components. Keep reload kit pyrotechnic
components away from flames, sources of heat and
flammable materials.

Disclaimer and Warranty

NOTICE: As we cannot control the storage and use of
our products, once sold we cannot assume any
responsibility for product storage, transportation or
usage. RCS shall not be held responsible for any
personal injury or property damage resulting from the
handling, storage or use of our product. The buyer
assumes all risks and liabilities therefrom and accepts
and uses AeroTech/RCS products on these conditions.
No warranty either expressed or implied is made
regarding AeroTech/RCS products, except for
replacement or repair, at RCS's option, of those
products which are proven to be defective in
manufacture within one year from the date of original
purchase. For repair or replacement under this
warranty, please contact RCS. Proof of purchase will be
required. Note: Your state may provide additional rights
not covered by this warranty.
Certified by the Tripoli Rocketry Association
Instructions P/N 21054 Rev. 5/12/16
Made in U.S.A.
©2015-2016 RCS Rocket Motor Components, Inc., All rights
RMS-PLUS™ HIGH-POWER
Reloadable Motor System™
Rocket Motor Reload Kit With RMS-Plus Delay
Assembly & Operation Instructions
For RMS-38/120-360 Motor Hardware
DO NOT OPEN RELOAD KIT UNTIL READY TO USE
Note: Motor designation and complete performance specifications (including
sample time-thrust curve) are printed on the RMS-Plus packaging tube.
WARNING-FLAMMABLE: READ INSTRUCTIONS BEFORE USE. Use RMS
reload kits only in accordance with instructions. Sale to persons under 18 years
of age prohibited by federal law. For use only by certified users 18 years of age
or older. Ignite by electrical means only. Do not smoke when loading RMS motors
or use in the vicinity of open flames. CAUTION: Keep out of reach of children.
Metalstorm™ propellants produce showers of hot sparks. Clear launch area of all
combustible material for at least a 75 foot diameter radius around launcher.
Follow NAR & TRA safety codes at all times. Motor hot after firing.

Setting the Time Delay

Note: If you want to use the longest (as-supplied) time
delay, do not use the RMS delay drilling tool and instead
proceed with general motor assembly (inside pages).
1. WARNING: Do not smoke and ensure that there are
no open flames or heat sources nearby when setting the
time delay. Assemble the AeroTech RMS delay drilling
tool with the desired amount of delay time removal (i.e.,
the - 4 or - 8 seconds removal marked on the tool label)
facing the exposed drill bit and delay grain.
2. Optional: Place the washer between the drill knob
and the tool if you want to remove 2 seconds less than
the value printed on the tool (i.e., - 2 or - 6 seconds
removal).
3. Place the delay grain into the cavity in the appropriate
end of the tool, hold the tool and grain firmly together and
turn the drill knob several times clockwise until the drill
knob sits flush against the drill tool body.
4. Remove the tool and shake out the shavings from the
tool and delay grain. Dispose of the shavings by burning
with a safe method and in a safe location.
reserved