Aerotech Flying Model Rocket Kit 4" Mega Initiator  AER 89541

Aerotech Flying Model Rocket Kit 4" Mega Initiator AER 89541

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AER 89541
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Skill Level:
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Aerotech Flying Model Rocket Kit 4" Mega Initiator  AER 89541

AeroTech has upscaled it's famous Intitator into the Mega Intitator! Designed for multiple motor mounts and ready for anything from G to K motors, this kit is a great way to transition into high-power rocketry, or just fly a large rocket on a G motor. The kit comes fully loaded with everything needed to achieve Level 1 and Level 2 certification including motor retention, 29mm and 38mm motor adapters and a full recovery system. Features 4 inch pre-slotted airframe, 12 inch payload bay, 9 ounce Polypropylene nose cone, 15 -inch nylon shock cord, 54/38/29mm Loc-N-Mount with Motor Retention, Fin-Lock Rings, Heavy duty 1/4 inch launch lugs and conformal rail guides.

AeroTech Skill Level 4 master modeler kits require expert skills in model rocket construction and finishing. The assembly, finishing and glue drying time may take up to a week or more to complete the kit properly. Previous mid-power flying experience is recommended.

This kit requires assembly. Hobby glues, finishing supplies, building tools, launch system and rocket motors for launching are not included.

Launch supplies sold separately. Flying with AeroTech high power rocket motors requires the AeroTech Mantis Launch Pad (89281), AeroTech Interlock Launch Controller (893891), AeroTech rocket motors with FirstFire™ Initiators and Recovery Wadding. A 12-volt battery source is required for the AeroTech Interlock Launch Controller - Not Included.

Recommended for ages 12 to adult. Direct adult supervision is suggested for those under 16 years of age when flying model rockets of this size and power.

Length: 60"(152cm)

Diameter: 4.0"(101mm)

Weight: 32oz(907g)

Motor Mount: 54mm (with 29mm and 38mm adapters)

Recovery: 36 inch Rip-stop Nylon Parachute

Fins: 3 - 1/4 inch thick laser-cut plywood

Décor: Self-adhesive Decals

Skill Level PRO


Model Rocket Kits are rated by Skill Level

1 Beginner

2 Intermediate

3 Advanced

4 Expert

5 Master

PRO Higher power rockets

If you are just starting in the hobby start at the beginner level and move up from there at your own pace.

What is needed to build and fly

All model rockets come in kit form that require assembly.  The materials are primarily cardboard tubes, balsa or plastic fins and nose cone.  Materials will vary by model and are typically specified in the description of each kit. 

Additional supplies will be necessary to build and finish your model rocket kit and may include:

Scissors, Hobby Knife


Wood Glue, Model Cement or CA(Super Glue)


Masking Tape

Finishing Supplies like:

Wood Filler



Launching Equipment and Supplies like:

Recovery wadding

Launch Pad

Launch Controller

Power supply

Model Rocket Motors and Igniters

A safe place to fly using guidelines from the National Association of Rocketry Safety Code that can be found at


AeroTech/RCS will replace or repair any of its products which are proven to have failed to perform properly as a direct result of manufacturer defect.