U.S. Rockets 24mm R&R Reloadable Solid Rocket Motors

U.S. ROCKETS
U.S. Rockets logo

More power to you!!
Genesis of LMR & HPR.

U.S. Rockets motors logo

24mm 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.

The system.

U.S. Rockets R&R Reloadable motor system with casing, closures, propellant,
delay, thermal liner, and nozzle. The rear closure has an integral thrust
ring and the forward closure can be plugged or have a user modifiable delay.
Reusable closures and expendable propellant reloads. 240 N-s power systems
are the largest FAA exempt motors, being under 125 grams propellant.

Our system has fewer parts than other brand systems, fewer leak points, uses
less grease, is more suitable for assembly in cold weather or for folks with
fat fingers or gloves on, and allows reuse of the nozzle in many instances.
Users who save superior quality used U.S. Rockets brand nozzles, repurpose
them for use with our "propellant bulk packs".

Casings and Closures
Description	Item#	Cost
24mm closure set	1-24-closure	30.95
24mm 20 N-s case	24-20case	15.00
24mm 40 N-s case	24-40case	18.00
24mm 60 N-s case	24-60case	20.00
24mm 80 N-s case	24-80case	21.00
24mm 120 N-s case	24-120case	24.00
24mm 160 N-s case	24-160case	27.00
24mm 200 N-s case	24-200case	30.00
24mm 240 N-s case	24-240case	33.00
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 1/4g to 3/8g is recommended for MR and LMR respectively. Liner ejection tool aids removal of paper liners which have been damaged by long duration propellant loads thus protecting the valuable casing system. Extra o-rings are included for replacement as they become damaged during normal usage. 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)

24mm - 0.935 inch - R&R Motor Reloads
24mm 20 Newton-second 0.5 Grain Reloads
Motor Type	Thrust Pounds	Time Sec	Propellant	6-pack Cost
20D48-BK	11.2	0.4	Buttkicker	16.95
20D24-F	5.6	0.8	Fast	14.95
20D12-STD	2.8	1.6	Standard	14.95
24mm 40 Newton-second 1 Grain Reloads
Motor Type	Thrust	Time Sec	Propellant	6-pack Cost
40E96-BK	22.4	0.4	Buttkicker	31.95
40E48-F	11.2	0.8	Fast	28.95
40E24-STD	5.6	1.6	Standard	28.95
24mm 60 Newton-second 1.5 Grain Reloads
Motor Type	Thrust	Time Sec	Propellant	6-pack Cost
60E144-BK	33.6	0.4	Buttkicker	45.95
60E72-F	16.8	0.8	Fast	41.95
60E36-STD	8.4	1.6	Standard	41.95
24mm 80 Newton-second 2 Grain Reloads
Motor Type	Thrust	Time Sec	Propellant	6-pack Cost
80F192-BK	44.8	0.4	Buttkicker	55.95
80F96-F	22.4	0.8	Fast	50.95
80F48-STD	11.2	1.6	Standard	50.95
24mm 120 Newton-second 3 Grain Reloads One graincore big BK
Motor Type	Thrust	Time Sec	Propellant	6-pack Cost
120G286-BK	67.2	0.4	Buttkicker	83.95
120G136-F	33.6	0.8	Fast	75.95
120G72-STD	16.8	1.6	Standard	75.95
24mm 160 Newton-second 4 Grain Reloads Two graincore big BK. One graincore big F.
Motor Type	Thrust	Time Sec	Propellant	3-pack Cost
160G384-BK	89.6	0.4	Buttkicker	110.95
160G192-F	44.8	0.8	Fast	100.95
160G96-STD	22.4	1.6	Standard	100.95
24mm 200 Newton-second 5 Grain Reloads
Motor Type	Thrust	Time Sec	Propellant	3-pack Cost
200H240-STD	56.0	1.6	Standard	124.95
24mm 240 Newton-second 6 Grain Reloads One graincore big
Motor Type	Thrust	Time Sec	Propellant	3-pack Cost
240H288-STD	67.2	1.6	Standard	149.95
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. You can buy grain spacers which allows a smaller number of casings to be used for more reload sizes. LT-24-2. Also LT-29-1.75 and LT-38-1.75 in bags of 12 for $6.00. Compare USR and Estes motors (2001 prices) 2010: Estes D 3/$11.49 or $0.236/N-s USR E $0.179/N-s, USR F $0.158/N-s or a 33% discount on power. More power to you!!

24mm 1 grain 60's can be clustered in three
(USR 54mm "Host Mount"-tm, or 3x80ns) or
four (USR 66mm "Host Mount"-tm) under the 125g
FAA limit. The extra closures can be reused for
any length motor or on-field spares.

Testimonials and Product usage
U.S. Rockets Reloadables

There were two Vaughn Brothers Extreme 24s and an Extreme 29. The Extreme 29 was powered by one of Jerry Irvine's G280-10s. Holy Cow.... do those buggers move. I thought G125s were hot. G280s are hotter than 40 yards of hell. They actually scream. Another G280 was used in a LOC Little Nuke. I'd like to plug LOC. The Lil Nuke is an outstanding rocket. Easy to build, streamer recovered and it flies like a home-sick angel.
- R J Talley

Sure I do! I flew a USR F100 a couple of months ago. Outrageous motor! I have a couple of G120's in my storage too. Don't know if I have the guts to fly them though! :-)
- Bruce Kirchner

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