AeroTech F115SN-12A vs F35-11W: 29mm Motor Comparison
By Quest Q-jet | Published: 2026-10-20
Category: Comparisons
Compare the AeroTech F115SN-12A DMS motor and F35-11W RMS reload kit for 29mm mid-power rockets. Learn the key trade-offs in convenience, cost, and performance.
Quick answer
Choose the AeroTech F115SN-12A DMS motor for single-use convenience and high thrust, or the F35-11W RMS reload kit for lower cost per flight and the ability to reuse hardware.
Convenience vs. Cost per Flight
The F115SN-12A is a disposable motor system (DMS) that comes pre-assembled in a fiberglass casing. You fly it once and discard the casing. The F35-11W is a reload kit that requires you to own and reuse the AeroTech RMS-24/60 motor hardware, lowering the cost of each subsequent flight but adding assembly steps.
If you value simplicity and are willing to pay a premium for a single flight, the DMS is the easier path. If you plan multiple launches and already have or are willing to buy the reusable hardware, the RMS reload kit saves money over time.
Performance and Propellant Differences
The F115SN-12A uses AeroTech's Slo Nine (SN) propellant, a slower-burning version of Warp-9, designed for lifting heavier payloads or models with more drag. Its 12A delay gives a longer coast time before ejection, suitable for larger or heavier rockets.
The F35-11W uses a White Lightning propellant formulation, which produces a bright white flame and a different thrust curve. The 11W delay is slightly shorter, making it a good match for lighter or standard mid-power rockets.
Trade-offs at a glance
- Convenience: F115SN-12A: No assembly, no hardware to buy. F35-11W: Requires RMS-24/60 hardware and assembly each time.
- Cost per flight: F115SN-12A: Higher cost per flight (USD 22.19). F35-11W: Lower cost per flight after hardware purchase (USD 27.08 for a 2-pack). If you fly often, the RMS reload kit pays for itself.
- Performance profile: F115SN-12A: Slo Nine propellant, 12A delay – best for heavier models. F35-11W: White Lightning propellant, 11W delay – best for standard mid-power rockets. Match the propellant type and delay to your rocket's weight and desired flight profile.
Product facts
- AeroTech F115SN-12A 29mm DMS™ Rocket Motor — 061112: This DMS motor uses a 29mm fiberglass-wound casing and AeroTech's Slo Nine (SN) propellant, a slower version of Warp-9. The fiberglass casing is disposable but robust, and the slower propellant gives sustained thrust for lifting heavier rockets.
AeroTech F115SN-12A 29mm DMS™ Rocket Motor — 061112 - AeroTech F35-11W RMS-24/60 Reload Kit (2 Pack) - 63511: This RMS reload kit requires AeroTech RMS-24/60 motor hardware (sold separately) and is not compatible with High Power RMS products. You need to invest in the reusable hardware upfront, but each reload kit costs less than a DMS motor, reducing per-flight expense over time.
AeroTech F35-11W RMS-24/60 Reload Kit (2 Pack) - 63511
Which one should you choose?
Best for
- Flyers who want a simple, single-use motor with high thrust for heavier 29mm rockets
- Those who don't own RMS hardware and prefer a no-assembly solution
Not for
- Budget-conscious flyers planning many flights (the RMS reload kit is cheaper per flight)
- Those who want to experiment with different propellant types or delays without buying new hardware each time
