Fusion SpaceMuster

Motor-hardware compatibility for high-power rocketry

E11J

33 N·s · 12 N avg

AeroTech RMS · class E · Blackjack · delay 3 s · built for the RMS-24/40 case

70 mm long · 62 g loaded · 25 g propellant

NAR certified
Open in the interactive toolFind it in stockView on ThrustCurve

Muster is a shopping aid, not an assembly guide. Build only to the reload's printed instructions — always the authority — and confirm every part with the manufacturer before you buy or fly.

What you need to fly it

The simplest build — in its own RMS-24/40 case. Reusable hardware you buy once, plus the single-use reload.

Reusable hardware to own

  • RMS-24/40 case60001

    24 mm reusable motor case

    Source: apogeerockets.com

  • 24 mm forward closure

    Reusable; shared across every case length in this diameter

    Source: apogeerockets.com

  • 24 mm aft closure

    Reusable; holds the reload's single-use nozzle

    Source: apogeerockets.com

Single-use reload to buy

E11J reload kit

Single-use: grains, liner, nozzle, o-rings, delay element, igniter, and ejection charge

Source: thrustcurve.org

  • A dab of high-temperature o-ring grease is needed on assembly (it comes with most hardware sets).

Cases that fly it

Its own case is the simplest; a longer case flies it too, with the adapter and spacers.