Aerotech HIGH-POWER RMS Blue Thunder 75/3840 Parts list manual

DO NOT OPEN RELOAD KIT UNTIL READY TO USE.
PARTS:
RMS™-75 HARDWARE
75mm aft closure 1
75/3840 case 1
75mm plugged forward closure 1
RELOAD PARTS KIT
Nozzle (large black plastic part) 1
Liner (2-3/4" O.D. black plastic tube) 1
Propellant grains (7/8” core) 3
Fwd & aft o-rings (1/8" thick X 2-3/4" O.D.) 2
Forward insulator (2-3/4” O.D. fiber washer) 1
Grain spacer o-rings (1/16” thick x 2-1/2” O.D.) 2
Smoke charge (short solid part) 1
Smoke charge insulator (1-1/2" O.D. tube) 1
Nozzle Cap (2-1/4” dia. red cap) 1
ITEMS NEEDED FOR USE:
• Synco™ Super Lube™ or other grease
• Hobby knife
• Electric match w/thermalite, Firestar™ or other igniter
• Masking tape
• Wet wipes or damp paper towels
SAVE THE RELOAD KIT PLASTIC BAG FOR THE USED RE-
LOAD PARTS. DISPOSE OF BAG AND PARTS PROPERLY.
HIGH-POWER RMS™HIGH-POWER RMS™
HIGH-POWER RMS™HIGH-POWER RMS™
HIGH-POWER RMS™ Assembly and Operation InstructionsAssembly and Operation Instructions
READ THIS BEFORE YOU BEGIN:
• Study the illustrations and sequence of assembly. THE SEQUENCE OF ASSEMBLY IS
EXTREMELY IMPORTANT. READ ALL INSTRUCTIONS BEFORE USE. USE RMS™
MOTORS AND RELOAD KITS ONLY IN ACCORDANCE WITH ALL INSTRUCTIONS.
Review the parts list and become familiar with all parts before assembly. IF ANY PARTS
ARE MISSING OR DAMAGED, CONTACT RCS AT 1-435-865-7100 or email at
[email protected].
• DO NOT USE ANY PARTS OF THE RMS™ SYSTEM THAT ARE DAMAGED IN ANY
WAY .If in doubt, contact RCS at the number above for assistance.
• DO NOT MODIFY THE MOTOR IN ANY WAY . Modification of the motor or the reload
kit parts could result in motor failure, lead to the destruction of both your rocket and motor
and may cause personal injury, death and/or property damage. Modification of the motor
or reload kit in any way will invalidate your motor warranty.
• USE ONLY AEROTECH/RCS RMS™ RELOAD KITS AND MOTOR PARTS TO
REFURBISH YOUR RMS™ MOTOR . The AeroTech/RCS reload kits have been
designed specifically for use in your particular AeroTech/RCS RMS™ motor. Use of
imitation components may destroy your motor, rocket and payload and will invalidate
your motor warranty. Only use AeroTech/RCS RMS™ reload kits intended for your
specific AeroTech/RCS RMS™ motor. DO NOT INTERCHANGE PARTS! Do not use
AeroTech/RCS RMS™ reload kits or motor components for any other purpose than to
refurbish an AeroTech/RCS RMS™ motor.
• DO NOT REUSE ANY OF THE DISPOSABLE PARTS OF THE RMS™ RELOAD KIT .
This includes the liner, nozzle and o-rings. These components have been designed for
one use only and must be discarded after firing. Reuse can result in motor failure during
subsequent operation and will invalidate your motor warranty.
• Motors are hot after firing. Although the RMS™ operates at a lower temperature than
most disposable motors, the higher thermal conductivity of the aluminum motor parts
may make it seem otherwise. If necessary to handle a motor before it has cooled down,
use a rag or similar article.
• Read and follow the safety code of the Tripoli Rocketry Association (TRA) and comply
with all federal, state and local laws in all activities involving high power rockets.
Chapter 1. Forward Closure Assembly
1-1. Apply a light coat of Synco™ Super Lube™ or other
grease to all threads and all o-rings (except the grain
spacer o-rings). This will facilitate assembly and pre-
vents the threads from seizing.
1-2. Fig.-1: Hold the forward (black) closure in a vertical
position, smoke charge cavity facing up. Insert the
smoke charge insulator into the smoke charge cavity
until it is seated against the forward end of the cavity.
1-3. Fig.-2: Apply a liberal amount of grease to one end of
the smoke charge element. Insert the greased end of
the smoke charge element into the smoke charge cavity
until it is seated against the end of the cavity. Set the
completed forward closure assembly aside.
2-1. Fig.-3: Using a hobby knife or similar tool, carefully
deburr (chamfer) both inside edges of the liner tube (2-
3/4” O.D. black plastic tube).
75mm Forward
(Black) Closure
Smoke Charge
Insulator
Smoke
Charge
Cavity
Smoke Charge
Element
Fig.-1
Fig.-2
Fig.-3
Chapter 2. Case Assembly
Deburr (Chamfer)
Both inner Edges
Liner
Greased
End of
Smoke Charge
2-2. Fig.-4: Insert the larger diameter portion of the nozzle
into one end of the liner, with the nozzle liner flange
seated against the liner. NOTE: Blue Thunder RMS-75/
3840 motors use a single large throat nozzle rather than
the multiple-throat “Medusa” nozzle shown in the illus-
trations.
2-3. Fig.-5: Perform the remaining assembly steps with the
liner held in a horizontal position. Install the propellant
grains into the liner, placing the two (2) grain spacer o-
rings (1/16” thick x 2-1/2” O.D.) between each propel-
lant grain. The aft grain should be seated against the
nozzle grain flange.
2-4. Fig.-6: Push the liner assembly into the motor case until
the nozzle protrudes approximately 1-3/4” from the end
of the case. NOTE: A coating of grease on the outside
surface of the liner will facilitate installation and casing
cleanup after motor firing.
2-5. Fig.-7: Place the forward insulator (2-3/4" O.D. fiber
disk) into the forward (bulkhead) end of the case until it
is seated against the end of the liner.
2-6. Fig.-8: Place the greased forward (1/8" thick X 2-3/4"
O.D.) o-ring into the forward (bulkhead) end of the case
until it is seated against the forward insulator.
2-7. Fig.-9: Thread the previously-completed forward clo-
sure assembly into the forward end of the motor case by
hand until it is seated against the case. NOTE: There
will be considerable resistance to threading in the
closure during the last 1/8" to 3/16" of travel.
2-8. Fig.-10: Place the greased aft (1/8" thick X 2-3/4" O.D.)
o-ring into the groove in the nozzle.
2-9. Fig.-11: Thread the aft closure into the aft end of the
motor case by hand until it is seated against the case.
NOTE: There will be considerable resistance to thread-
ing in the closure during the last 1/8" to 3/16" of travel.
It is normal if a slight (1/32” to 1/16”) gap remains
between the closure and the case, and the grains rattle
slightly in the liner after tightening.
Fig.-6 Liner Assembly
Case
Fig.-7 Fig.-8
Forward O-Ring
Fig.-11
Aft Closure
Case
Fig.-10
Fig.-9
Forward Closure
Assembly
Aft
(Nozzle)
End Views
Case
Case
Forward
(Bulkhead)
End Views
Liner
Chapter 2. Case Assembly (Cont’d)
Nozzle
(Protrudes About 1-3/4”)
Forward Insulator
Aft O-ring
Nozzle
Fig.-4
Fig.-5
Liner
(Deburred)
Nozzle
Liner Flange
Liner
Nozzle
Grain Flange
Propellant
Grains (7/8” Core)
Grain Spacer
O-rings

®
HIGH-POWER RMSHIGH-POWER RMS
HIGH-POWER RMSHIGH-POWER RMS
HIGH-POWER RMS
Reloadable Motor System
TM
TM
Typical Time-Thrust Curve:
NOTE: Motor lengths are measured from end of aft closure to end of forward closure.
RMS™ 75MM BLUE THUNDER RELOAD KIT DATA
NOTE: Total impulse shown is typical.
RMS™ 75MM HARDWARE DATA
Thrust in Pounds
Time in Seconds
T= Blue Thunder™
NOTE: This reload kit is ONLY for use in AeroTech/RCS, Rouse-Tech™ or Dr. Rocket™ RMS™ 75/3840 high-power
motors. Certified by the Tripoli Rocketry Association (TRA).
AeroTech Division
RCS Rocket Motor Components, Inc.
Cedar City, UT 84720
www.aerotech-rocketry.com
P/N 20081-1 Rev. 5/27/10
Made in U.S.A.
©2010 RCS Rocket Motor Components, Inc., All rights reserved
Fig.-12
3-1. Fig.-12: Insert the coated end of a Firestar™ or other
igniter through the nozzle throat until it stops against the
smoke charge element.
3-2. Secure the igniter to the nozzle with a piece of masking
tape or the 2-1/4” dia. red nozzle cap supplied with the
reload kit. NOTE: Cut a 1/8”-1/4” wide slot in the corner
of the cap to allow for igniter venting.
3-3. 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.
3-4. Prepare the rocket's recovery system and then launch
the rocket in accordance with the Tripoli Rocketry
Association (TRA) Safety Code and National Fire Pro-
tection Association (NFPA) Code 1127.
Chapter 4. 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
bags and boxes and dispose of properly.
4-1. After the motor has cooled down, unthread and remove
the forward and aft closures.
4-2. Remove the smoke charge insulator from the forward
closure and discard. Using wet wipes or damp paper
towels, remove all smoke charge and propellant resi-
dues from the closures.
4-3. Remove and discard the forward and aft o-rings from
the motor case. Remove the liner, forward insulator and
nozzle from the casing by pushing on the nozzle end
and discard. Using wet wipes or damp paper towels,
wipe the inside of the casing to remove all propellant
residue.
4-4. 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.
Chapter 3. Preparation For Flight
Install Igniter Against Smoke Charge
Nozzle Throat
Chapter 5. First Aid
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. AeroTech Blue Thunder composite
propellant consists primarily of Ammonium Perchlorate and a
rubber-like plastic elastomer.
Chapter 6. Disposal
Damaged or defective reload kits should be returned to RCS.
Chapter 7. 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/RCS RMS™ reload kit pyro-
technic components may become involved: Direct the water at
the AeroTech/RCS 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 pyro-
technic 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 prod-
ucts, 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 addi-
tional rights not covered by this warranty.
L1520T-P (75/3840)
This Package Contains One Reload Kit:
DO NOT OPEN RELOAD KIT UNTIL READY TO USE
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RMS
RMS 75/3840 Blue Thunder™
TM
NOTE: This reload kit MUST be used with separately packaged Blue Thunder™ propellant
grains (P/N 03616-2) and motor liner tube (03035-3). RMS™-75 reload kits do not include an
ejection charge. RMS-75 motors must be used in conjunction with a timer, altimeter or radio-
actuated recovery system.
Division of RCS Rocket Motor Components, Inc.
NOTE: SALE TO PERSONS UNDER 18 YEARS OF AGE PROHIBITED BY FEDERAL
LAW. WARNING-FLAMMABLE: Read Instructions Before Use. KEEP OUT
OF REACH OF CHILDREN. FOR USE ONLY BY CERTIFIED HIGH-POWER USERS
18 YEARS OF AGE OR OLDER. DO NOT SMOKE when loading these motors or use
in the vicinity of open flames.
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