U.S. ROCKETS
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More power to you!!
Genesis of LMR & HPR.

U.S. Rockets motors logo
18mm RELOADABLE MOTORS
Aluminum reloadable housings. Propellant cartridges
to fit for multiple reuse. Increased labor but lower
cost than expendables. Only standard coreburning grain
geometry type motor loads available.
Casings and Closures
DescriptionItem#Cost
18mm closure set1-18-closure20.00
18mm 5 N-s case18-5case9.00
18mm 10 N-s case18-10case10.00
18mm 20 N-s case18-20case12.00
18mm 40 N-s case18-40case15.00
18mm 60 N-s case18-60case17.00
18mm 80 N-s case18-80case18.00
First purchase CLOSURE SET includes nozzle holder end
closure, delay holder end closure, liner ejector dowel, spare
o-rings, instructions. All other parts are separate components
for replacement or special applications. Nozzle closure has
positive seal in two places and recommended nozzle (included
in reload packs) is reuseable at least three times. Bulkhead
closure has positive seal in one place and standard friction fit
delay element. Closure accepts small quantities of ejection
powder in the well and 1/8g is recommended for MR. In particular
the nozzle o-ring can be damaged by installation of nozzles so
bevel the nozzle edge slightly with sandpaper to increase seal
life.




PROPELLANT STYLES

Firestarter (amber), Whitestar (silver), Standard (brown), Fast (orange), Buttkicker (black)



18mm - 0.685 inch - R&R Motor Reloads
18mm 5 Newton-second 0.25 Grain Reloads
Motor TypeThrust
Pounds
Time
Sec
Propellant 6-pack Cost
5 B 81.80.625Standard9.00
18mm 10 Newton-second 0.5 Grain Reloads
Motor TypeThrustTime
Sec
Propellant 6-pack Cost
10 C 163.60.625Standard12.00
18mm 20 Newton-second 1 Grain Reloads
Motor TypeThrustTime
Sec
Propellant 6-pack Cost
20 D 327.20.625Standard24.00
18mm 40 Newton-second 2 Grain Reloads
Motor TypeThrustTime
Sec
Propellant 6-pack Cost
40 E 6414.40.625Standard48.00
18mm 60 Newton-second 3 Grain Reloads
Motor TypeThrustTime
Sec
Propellant 6-pack Cost
60 E 9621.60.625Standard72.00
18mm 80 Newton-second 4 Grain Reloads
One graincore big.
Motor TypeThrustTime
Sec
Propellant 3-pack Cost
80 F 12828.80.625Standard48.00
Includes propellant, delay, liner, nozzle, instructions. Consumer provides
ejection powder FFF, igniter, rocket, launch pad and excitement! Bulk packs
of 12 each available at 10% discount. Ask your dealer to stock our reloads
and closures which are compatible with all popular casings.
Our closures and loads, their casings.

| Motor comparisons |

| 24mm R&R Motors | 29mm R&R Motors |

| 18mm Bulk Propellant |
| 24mm Bulk Propellant |

| Tips and custom modifications |


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