L1170FJ
4232 N·s · 1141 N avgAeroTech RMS · class L · Black Max · delay Plugged (no ejection charge) · built for the RMS-75/5120 case
665 mm long · 4.99 kg loaded · 2.8 kg propellant
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-75/5120 case. Reusable hardware you buy once, plus the single-use reload.
Reusable hardware to own
- RMS-75/5120 case7551C
75 mm reusable motor case
Source: aerotech-rocketry.com
- 75 mm forward closure
Reusable; shared across every case length in this diameter
Source: aerotech-rocketry.com
- 75 mm aft closure75ACC
Reusable; holds the reload's single-use nozzle
Source: aerotech-rocketry.com
- 75 mm forward seal disc75FSDSS
Reusable forward seal disc
Source: aerotech-rocketry.com
Single-use reload to buy
Single-use: grains, liner, nozzle, o-rings, delay element, igniter (no ejection charge)
Source: thrustcurve.org
- This reload is plugged — it carries no ejection charge and must be flown with electronic deployment (a timer or altimeter) and a plugged forward closure.
- 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.
Also flies cross-brand (crossload)
AeroTech certifies its 75 and 98 mm reloads for Cesaroni hardware (its “crossload” program). A single-throat reload loads as-is; a Medusa-nozzle reload needs a single-throat nozzle. Use the o-ring set specified for the Cesaroni case.
A cross-brand motor must be certified in the hardware it’s flown in — treat this as a starting point and build to the reload’s printed instructions.
Sources: pro38.com, facebook.com