Quick answer
The AeroTech I500T-14A is a 38mm single-use DMS motor kit that delivers strong I-class performance, but you must supply a Universal Delay Drilling Tool (UDDT) and assemble the ejection charge yourself.
What the I500T-14A DMS kit includes and what it does not
The AeroTech Disposable Motor System (DMS) is a single-use motor in kit form. The nozzle and propellant are already installed, so you don’t handle those components. However, the kit does not include a Universal Delay Drilling Tool (UDDT) or the ejection charge materials—you must buy those separately. This is a common point of confusion for first-time DMS users.
Why the delay drilling step matters
Setting the correct delay time is critical for safe recovery deployment. The I500T-14A’s delay is adjustable using the UDDT, which lets you match the motor’s burn time to your rocket’s weight and altitude. If you skip or rush this step, you risk an early or late ejection that can damage the airframe or lose the rocket.
Decision rules for the I500T-14A
- Do you already own a UDDT?: If yes, the I500T-14A is straightforward to assemble. If no, factor in the cost of buying a Universal Delay Drilling Tool (around $20-30) before purchasing this motor.
- Is this your first high-power motor?: The I500T-14A is an I-class motor requiring Level 1 certification. If you are not yet certified, start with a smaller motor or complete your certification first. Check NAR/TRA certification requirements before buying.
- Do you need a ready-to-fly motor?: If you prefer a motor that requires no assembly, look for a factory-set single-use motor instead. The DMS kit demands a few minutes of prep and a UDDT.
Product facts
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AeroTech I500T-14A 38mm x 356mm Single Use DMS 1-Motor Kit - 095014: The AeroTech Disposable Motor System DMS is a single-use motor in kit form assembled by the user. The nozzle and propellant are already installed. You will need to set the desired delay time using the Universal Delay Drilling Tool (UDDT), Not Included, and then pour in the ejection charge. This means you save money on hardware but must own or borrow a UDDT and be comfortable drilling the delay element before flight.
AeroTech I500T-14A 38mm x 356mm Single Use DMS 1-Motor Kit - 095014
Who should buy this motor?
Best for
- Modelers with Level 1 certification who want I-class performance at a lower cost than a reloadable system
- Flyers comfortable drilling delay elements and assembling ejection charges
Not for
- Beginners without high-power certification
- Anyone who does not own or cannot borrow a Universal Delay Drilling Tool
