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Cesaroni Pro-24 Reloadable Motor Hardware

Cesaroni (also known as CTI) is a manufacturer of reloadable rocket motors. These 24mm diameter motor cases allow you to take an existing 24mm rocket and put an E to an G-class motor in it. These are high-thrust motors, so they are great for big diameter rockets, or those that are very heavy and can't be lofted with other smaller motors.

24mm Casings
24mm Accessories

 Pro-24 Cases

Cesaroni Pro-24 Reloadable Motor Cases
24mm Reload hardware includes: Case, but NOT the Aft Closure. The propellant is NOT included.
Case Image P/N Price Options Length*
(inch)		 Weight*
(g)		 Reload (Propellant) Kits That Fit This Case Place Order Now
1-Grain Case Cesaroni 1 Grain Case 71000 $9.62 See Below 2.75 17.5 Cesaroni 1-Grain
Propellant Kits		 Sorry,
Back-ordered
(02/02/12)
3-Grain Case Cesaroni 3-Grain Case 71002 $18.62 See
Below		 5.25 38.9 Cesaroni 3-Grain
Propellant Kits
6-Grain Case Cesaroni 6-Grain Case 71005 $21.72 See
Below		 9.00 62.9 Cesaroni 6-Grain
Propellant Kits

*Length is measured without the aft closure. Use this length to position the engine block in the tube if you want extra protection in the tube. Weight does include the Standard Aft Closure (shown in the accessories section below)

The aft closure is not included in the 24mm reload motor cases. Please be sure to order one from the chart below.

Accessories For Cesaroni PRO-24 Reloadable Hardware
Description P/N Price Comments Image Place Order Now
24mm Standard
Aft Closure 		71101 $11.37 Standard "easy-grip" closure. Fits all Pro24 cases listed above. This closure works with all Engine Retainers. Standard Aft Closure Pro-29 cases

Tell Me More Information - Watch This Video

Information About Cesaroni Motors

More Information About Cesaroni PRO-24 Reloadable Motor Casings

Pro24® rocket motor hardware is as simple as you can get.

Manufactured from thin-wall 6061-T6 aluminum tubing with a clear anodized coating for corrosion protection, Pro24® motor cases are lightweight but strong, capable of holding well over 3000 psi of internal pressure. The forward closure is retained by a formed rim at the head end of the casing. The rear of the casing has precision-machined internal threads.

Pro24® motor casings are available in two sizes. Please refer to the motor specifications page to see which casing is required for each Pro24® reload.

Don't forget that you'll need a delay adjustment tool for your Pro24® reloads. The ProDAT® tool allows you to choose from 5 preset delay times with every reload.

 24mm Closure Installed
Size comparison of the 6-grain case to a D12 motor Both the 3-Grain and the 6-Grain casings are the same diameter as the Estes D12, but these are a lot longer. To use them in kits that are intended for the D12, you'll need to really beef up the fins on the rocket. These are high thrust motors that rip off the pad a lot faster than the D12's.

You'll also need to remove the engine block in front of the motor. The thrust ring on the aft closure will prevent the motor from sliding all the way through.
You will also need to provide some type of retainer on the back end of the rocket to hold the engine in (to prevent it from getting kicked out when the ejection charge fires). The Standard Aft Closure does include a notch for an engine hook, but the cases are so long that they will not work with standard engine hook sizes. You'll either need to modify an engine hook to work with the long cases, or use something like the 24mm threaded engine retainer shown in the photo to the right.

Do You Need A Different Diameter Reloadable Motor Casing?

Step 1: Pick the diameter of the engine. Clicking on the links will take you to more information about each diameter motor so you can select the correct casing. 

Step 2: Pick the Cesaroni 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 Cesaroni Case.

 CTI Pro-X rocket motors

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

Frequently Asked Questions:

Q. How do I adjust the ejection charge delay on the Cesaroni motors.

A. You need a special drill tool, called the "Pro-DAT" that allows you to put a hole into the delay grain that makes the coasting time shorter. One delay tool can be used on all 24mm*, 29mm* and 38mm motors. Click Here for more information.

*An adapter ring is required for 24mm and 29mm motor adjustments
 Pro-DAT tool

Q. Can I use Aerotech propellant in the Cesaroni cases?

A. No. the sizes of the propellant are different and therefore the Pro24® motor cases are not compatible with any other brand of reload except Cesaroni.

Q. Are there any special tools that are needed to assemble these motors?

A. No. Assembly is simple.

Q. Don't I need to be high-power certified to buy these motor casings?

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. 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 have two options: 

1. You can put a layer of tape over the top. Click here for more information.

2. You can use an engine retainer as shown to the right. Click for information on Engine Retainers
 Aft closure ring

Q. What kind of hook should I use to hold the 24mm reloadable engines in my rocket? I noticed that the Apogee web site doesn't have long engine hooks.

A. Engine Retainers. These are useful on rockets that use the 24mm diameter reloadable motors that are extra long.
Engine Retainers

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).
Aerotech Reloadable Motor System Assembly

Rouse-Tech Motor Cases - The Rouse-Tech motor casings use the Aerotech reloads kits. They are an alternative to the Cesaroni motors, and come in the same diameters so you can use them in your already-built rocket fleet. Why buy from Apogee? Because we've organized things to make it easier for you to pick and find the right casing for your big project.

 Rouse-Tech Monster Motors

Actual Customer Comment:
"I have no negative comments about my buying experience here. The products are all high quality and the responses are quick. I have never been let down by Apogee! -- Timothy Wood

This page last updated on: 2/2/12 1px Site Map 1px Contact Us 1px Website Issues?