Muster

Every AeroTech RMS reload is built for one case length, shown as RMS-38/360and the like — the number is the case's approximate maximum total impulse in newton-seconds. A reload drops straight into that case: a direct fit.

A longer case can fly a shorterreload too, by taking up the empty length with spacers. That's a spacer fit, and it needs AeroTech's Reload Adapter System (RAS): a floating forward closure plus one or two case spacers. Muster only resolves the exact spacer count for 38 mm, whose case lengths step by one grain each and whose full spacer chart AeroTech publishes. For 29 mm and 54 mm the case lengths aren't evenly spaced, so Muster flags that a RAS exists and points you to the instructions rather than asserting a step it can't source.

The one exception is the mid-power RMS-29/40-120 case: its shorter reloads carry their own spacers in the box, so it flies a whole range with no separate adapter.

The reusable metal hardware you buy once: the case, a forward closure, an aft closure (which holds the nozzle), and — on the longer cases — a forward seal disc. Within a diameter, the closures are shared across every case length, which is the whole economy of a reloadable system.

Everything single-use is in the reload kit: the propellant grains, the liner, the nozzle, the o-rings, the delay element, the igniter, and (unless the reload is plugged) the ejection charge. You discard all of it after the flight and load a fresh kit next time.

A plugged reload has no ejection charge and must be flown with electronic deployment and a plugged forward closure. A sparky (metal-loaded) propellant is often restricted at the field. Muster flags both.

Each reload shows its certifying body — NAR or Tripoli (TRA) — as recorded by ThrustCurve, or a caution when none is listed. Certification is what lets you fly a motor at an insured launch; always confirm the current status with the certifying organization, since listings change.

Out of production is not the same as decertified.An out-of-production reload stays flyable until stocks run out; Muster marks it so you know it may be hard to find, not that it's disallowed. Muster never marks a motor decertified on its own — that's a call for the cert organizations, and their notices are authoritative.

The reload catalog — designations, impulse, thrust, delays, propellant, and certification — is mirrored from ThrustCurve, the community motor database, and each reload links back to its page. The mapping of reload to case is ThrustCurve's own per-motor case field.

The hardware graph — the cases, the closures, the seal-disc rules, and the AeroTech Reload Adapter System spacer chart — is curated by hand from the manufacturer's and vendors' published hardware, and every part and rule cites its source in the repo.

Reload data fetched 2026-07-08. Reload catalog mirrored from ThrustCurve. Certification org and availability are as ThrustCurve records them; always confirm current status with the certifying body and the reload instructions.