High-Power: 29mm Diameter ROUSE-TECH MONSTER MOTORS

The 29mm diameter high power motor cases allow you to take an existing 29mm rocket and put an H or I-size motor in it. Since an H-size motor is the first high power motor, you can get your Level 1 certification using a sturdy-built existing kit! These 29mm casing are very popular for that very reason. The other advantage of 29mm motors is that they still come with delay and ejection charges. You do not need to invest in electronics and other equipment to pop the parachute out of the rocket. This fact simplifies construction of the rocket and makes it easier to gain experience with building high-power engines. When you first get into high power rocketry, you'll probably want to focus all you attention on building the rocket strong enough to handle the higher forces that occur with big rockets. You don't want to worry about getting the electronics to work properly too, do you? Just one step at a time, right?

ROUSE-TECH 29mm Diameter HIGH-POWER Reloadable Motor Hardware Reload hardware includes: Case, Forward Closure, Aft Closure, and Forward Seal Disk (if required). The propellant is NOT included.
Nomenclature	P/N	Price	Place Order Now	Image	Options	Length* (inch)	Weight (g)	Reload (Propellant) Kits That Fit This Case
RMS-29/180	60010	$78.99		Image	See Below	7.253	84.7	G75J, H128W, H165R, H238T
RMS-29/240	60011	$92.99		Image	See Below	9.013	105.3	H97J, H180W, H210R, H220T
RMS-29/360	60012	$105.99		Image	See Below	12.732	138	H268R, I200W
*Length is measured without the aft closure. Click on the length to get a dimensioned drawing of the reload casing.
To order the 24mm and mid-power 29mm casings, please click here.

Optional Accessories For High-Power 29mm Reloadable Hardware
Description	P/N	Price	Place Order Now	Comments	Image
29mm Standard Forward Closure	60121	$22.95		It is used on motors where you need the ejection charge to pop the parachute out of the rocket. This is the standard forward closure that comes on all 29mm hardware sets. You only need to order it if you lose yours.
29mm Plugged Forward Closure	60120	$23.99		It plugs the motor. Use only if you decide to use electronics (like a timer or altimeter) to control the ejection of the parachute, and you don't want the motor to control ejection.
29mm Forward Seal Disk	60100	$9.95		Use only on the longer casings: RMS 29/240 and larger. Your hardware set will include the forward seal disk. You only need to order this item if you should happen to lose yours.
29mm Aft Closure	60129	$22.95		This is the standard aft closure that comes on all 29mm hardware sets. You only need to order it if you lose yours.	no image

Casings only (no closures)
RMS-29/180	60010C	$30.00
RMS-29/240	60011C	$42.99
RMS-29/360	60012C	$49.99

More Information About Reloadable Motor Casings

The aircraft-grade aluminum reload hardware consists of three parts: the case, the foward closure and the aft closure. Here is what each is used for: The case holds the propellant inside. It is anodized yellow to make it easy to find if it ever should fall to the ground.

The forward closure screws onto the front end of the case. It serves multiple purposes. First, it holds the hot gases of the burning propellant and keeps them from shooting forward into the body of the model rocket. It also holds the special slug of propellant called the "delay grain." Finally, it has a small receptical at the tip to hold the black-powder ejection charge. The aft closure screws onto the base of the aluminum case. Like the forward closure, it is a bulkhead that holds the hot gases inside the case so the motor can produce thrust. In the middle of the part there is a big hole, which allows the nozzle to protrude out the back end of the assembly. Their is another feature of the aft closure that makes it convenient for use in most rockets. The diameter is bigger than the case. When you push the motor into the engine tube of the rocket kit, it stops when it butts up against the aft closure. In effect, it acts as the engine block. This way you can leave the engine block out of the kit if you want to use it with different length reload motors!

The longer cases (from RMS-29/240 and bigger) also come with a forward seal disk. This disk is inserted into the front end of the propellant liner and prevents the forward end of the case from discoloring and blistering from the intense heat of the bigger motors.

Made in the USA by Rouse-Tech, these are precision engineered cases that are designed to be used with the Aerotech propellant kits.

In fact, theses cases have the exact same specs as the one from Aerotech, because Aerotech licensed Rouse-Tech to make them for consumers. The only difference is the anodized color on the outside of the motor.

Do You Need A Different Diameter Reloadable Motor Casing?

Step 1: Pick the diameter of the engine. Clicking on the diameter will take you to more information about each diameter motor so you can select the correct casing. 24mm Dia. Motors (power: E - F ) 29mm Dia. Motors (power: F - G ) 29mm HPR Motor (Power: G - I ) 38mm Dia. Motors (power: G - J ) 54mm Dia. Motors (power: I - K ) 75mm Dia. Motors (power: K - M ) 98mm Dia. Motors (power: K - N ) Step 2: Pick the Aerotech Propellant kit that you want to fly in your rocket. To be honest, this is the most time-consuming step. Contact us if you need help. We'll direct you to the RockSim software that we use to help pick the right rocket engines for your vehicle. Technical Publication #28 gives you a step-by-step procedure for picking the motors that might work in your rocket. Step 3: Match the propellant kit that you just selected in step 2 to the appropriate Rouse-Tech Monster Motor Case.

The aluminum reloadable casing is also called the "reload hardware." Why not let Apogee Components be your hardware store?

Frequently Asked Questions:

Q. Where do I buy the propellant kits that go into the high power motor cases? A. Give us a call at: 719-535-9335 and we can give you further directions. Q. Are there any special tools that are needed to assemble these motors? A. No. You will only need a tube of grease (white lithium grease or vasoline will work fine) to put on the threads to provide a little lubrication. Q. Don't I need to be high-power certified to buy these motors? A. No. You can buy the aluminum casings without being certified. However, you do need to be high-power certified to buy the propellant kits (H size and larger). Q. Where do I go to get High Power Certified so I can buy the propellant kits? A. In the United States, there are two organizations that can certify you to fly high power motors. They are the National Association of Rocketry, and Tripoli Rocketry Association. If you are outside of the USA, please click here. Q. Why isn't there a "one-size-fits" all reloadable-case? A. Great Question! It has to do with the physics of rocket motors. To make such an motor case, you would have to design it to fit the largest engine. Then smaller motors would have a lot of empty space in them. First of all, this would be inefficient because you're carrying excess weight into the air. The extra space that should be filled with propellant causes problems with the rest of the propellant burning. There are vibrations and acoustics that resonate in the empty chamber that make sustaining thrust difficult. It is a delicate balancing act to design efficient motors. That is why it is called "rocket science" after all. Fortunately, the hard part is done for us by the manufacturers, and we get to enjoy the smooth operation of each well designed motor. Q. Why would Aerotech license Rouse-Tech to make these motors? A. The casings are expensive to manufacture, and it ties up a company's money to make all the necessary inventory. By licensing the case production to Rouse-Tech, Aerotech frees up its cash to invest in new motors and propellant -- which is good for consumers as it offers them more choices of motors.

Q. If I leave the engine block and hook off the rocket, what keeps the rocket from sliding into the rocket? A. The lip on the back of the motor butts against the aft edge of the engine tube. This prevents the motor from sliding forward. Cool, isn't it? To prevent it from sliding aft, you can put a layer of tape over the top. Click here for more information. Or you can use an engine retainer shown below.

Q. How easy is it to assemble a reloadable rocket motor? A. It will take you about 5 minutes to put one together. If you want to see how easy it is, watch our YouTube video where we put one together (click here).

Q. What kind of hook should I use to hold the 29mm reloadable engines in my rocket? I noticed that the Apogee web site doesn't have long engine hooks. A. Aero Pack Engine Retainers. These are useful on rockets that use the 38mm diameter reloadable motors.

Cesaroni Reloadable Rocket Motors Cesaroni (also known as CTI) is a manufacture of reloadable rocket motors. These motors are made in the standard diameters, so they will fit into your current fleet of rockets without having to do any further modifications. Note: the cases are not compatible with Aerotech Reload Propellant. 29mm Dia. Motors (power: F - I ) 38mm Dia. Motors (power: G - J )

Actual Customer Comment: "Thanks again for the wonderful DVD's that you made. Overall, they have really helped my skills at building rockets. Right now, I'm working on low power Estes rockets, but hope to go up to mid-powered rockets." -- Gene Lauria