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MONARCH Instructions

Updated: Aug 27, 2023

Model Rocketry is a fun and safe family activity.

model rocketry is a science your results may vary depending on how you build the rocket. please read the National Association of Rocketry model rocketry safety code and the model rocket handbook.

My Instructions are meant as a guide and are not a guarantee of stability or function of the product.

This rocket has been tested and proven but your results may be different.

depending on your skills.

Launching rockets can be dangerous and requires adult supervision. you use our products at your own risk. OLLIE-OOP Model Rocketry is not responsible for any damages or injuries incurred from use or misuse of our products. you are responsible for the Contruction and stability of your rocket. please follow all safety codes and launch procedures as stated by the NAR handbook.

our kits are not intended to be modified. Please use the recommended engines.

Always follow the NAR safety code at

Read all steps before beginning. Always dry fit the parts on every step that requires glue. And always add a reinforcing bead of glue to all joints the required glue and wipe off excess glue with your finger. Unless stated otherwise.

Always wear safety glasses and mask when cutting with a knife, saw, drill, rotary tool or when sanding or using powder.

If you are reading before buying. I do offer the option of TTW fins on request. Please message me.

NOTE: I offer a 24mm to 18mm motor adapter on my website. The plastic Estes adapters will fit but note that I never tested them, and they are heavier than mine is. If you alter the plans, you do so at your own risk.

If you are going to build this to use 24mm motors and or the 18mm adapter.

Locate a new or used 24mm motor and make a mark on it 1/4" from the end. Or use a 3" wide pc of cardstock rolled up and taped. Locate the 24mm ring.

Place a line of glue around the inside of one end of the body tube about 2" in.

Push the ring in the tube with the motor, stop when the mark on the motor meets the end of the tube, let dry.

24mm mount instructions.

Locate the motor tube, Kevlar cord, rings and motor hook.

Using a hobby knife make a 1/8" slit at 1/4" from the end of the tube.

On the opposite end of the tube make a mark at 1/2"

Place the hook in the slit. slide the large rings on tube over the hook. Push Kevlar cord through the hole in the FWD ring, the one by the slit. Tie the cord around the body tube.

Place a ring of glue around the tube at the slit and the 1/2" mark and slide the rings to the mark and just over the end of the hook just past the slit. Put reinforcing glue on both sides of both rings.

Put a bead of glue in the FWD end of the tube and insert the thrust ring until it stops on the hook.

You can glue a strip of paper around the tube to act as a hook retainer ring. Or use a pc of tape.

There are pictures of this process in the blog section for the 18mm mount instructions.

If the mount is dry. Run yellow cord through it and out the AFT end.

Place a line of glue inside the body tube about 2' in and insert the motor mount until both tubes are flush. Add a reinforcing line of glue to the tube and ring joint.

Sand the fins and round the edges except the root edge.

NOTE: I used wood glue and added 3 fillets and had no lost fins or damage on several launches.

However, if you want a much stronger bond, use 5 min. epoxy and add 2 or 3 fillets of it to attach the fins. Let them dry between coats.

Stand the tube on the marking guide. Make sure it's the same end as the motor ring or mount.

Line it up on the circle and mark all 4 fin locations without letting the tube move. It's important not to move the tube during this process.

Make a 5th mark between any 2 fins for the lug.

Extend each mark by 3" using a door frame or straight edge. Extend the lug line to 8" and make a mark on that line at 6"

Put a line of glue on the root of a fin and attach it to one of the lines on the tube. Keep checking alignment from front and back. Fin should be perfectly straight and at a 90-degree angle from the tube. Just like the lines on the marking guide. Let dry and repeat on the other 3 fins.

Lightly sand the launch lug and glue it under the 6' mark. Make sure its stays exactly straight on the line until the glue dries. Add another bead of glue to each side and wipe off excess with finger.

Fins should be at a 90-degree angle from the tube and should look like the diagram abouve, when viewed from the AFT end.

Run the yellow cord back though the rocket and out the FWD end.

Tie the end to the eye on the swivel using a strong knot, place a drop of white glue on the knot.

Tie all chute lines to the eye on the swivel also. Clip swivel to eye on nose cone.

The nose cone should be just tight enough to not fall off if you are holding the whole rocket by just it. But not too tight or the chute will not come out and that can be dangerous. You can wrap masking tape around the cone or sand it to adjust the fit.

This rocket flies best on 24mm Estes OR Aerotech/Quest equivalent C11-3 and D12-5

with 18mm mount or adapter B6-4 and C6 Estes motors.

Vinyl decals can be tricky. They are permeant but can be removed and replaced if done before they sit too long. They require a clean smooth surface to stick properly. Its best to cut them out and test fit them on the rocket before peeling them up. It's also best to wash your hands before using them.

Rub them down with the edge of a credit card or fingernail if they don't stick to the transfer tape, pull up the tape and place them on the surface.

Rub them with your fingers being careful not to dent the tube. Slowly pull the transfer tape back at a 90-degree angle, don't pull upwards. You will be peeling it such that the smooth backside of the tape is sliding on itself back-to-back.

If they don't stick to the surface, stop lay it back down and rub them again until they stay. After the tape is removed rub them down again with your fingers. It also can be helpful on large pcs to cut away some of the transfer tape as you remove it or fold the sticky side onto itself so that it doesn't get stuck to other things by mistake.

It is ok to cut away the tape as you go if it's easier. The tape has light tack so pull up slow from the backing paper.



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