Quest Q-jet

AeroTech H550ST-14A 38mm x 203mm Single Use DMS 1-Motor Kit - 085514

AeroTech H550ST-14A 38mm x 203mm Single Use DMS 1-Motor Kit - 085514 - Main image
$50.55 $78.99 In stock

The AeroTech Disposable Motor System DMS is a single-use motor in kit form that is assembled by the user. All of the Aerotech DMS motors use all-disposable components. 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. The Universal Delay Drilling Tool (UDDT) is required to adjust to a shorter time delay on all DMS rocket motors and is available in the AeroTech Accessories section of this website.

DMS motors feature a filament-wound fiberglass casing, a glass-reinforced composite phenolic nozzle, a molded plastic bulkhead and RCSs exclusive Super Thunder™ aerospace grade composite propellant formulation, which produces a bright violet-blue flame with a minimum of exhaust smoke. Super Thunder™ motors provide a higher ISP than Blue Thunder™.

This AeroTech motor pack comes with 1 rocket motor and 1 FirstFire™ Initiator. Requires HAZMAT shipping via UPS or FEDEX. The sale of this high power motor to persons under 18 years of age is currently prohibited by federal law. This is a High-Power motor requiring Level 1 High-Power certification through NAR or Tripoli to purchase. Orders containing this item will not be shipped until proof of age (such as a copy of a driver’s license) and proof of Level 1 certification is received.

Certified by the Tripoli Rocketry Association (TRA), the National Association of Rocketry (NAR) and the Canadian Association of Rocketry (CAR).

  • Specifications:

    Motor Diameter: 1.5 inches (38mm)

    Casing Length: 7.98 inches (203mm)

    Total Impulse: 320 N-sec

    Average Thrust: 550 newtons

    Peak Thrust: 667 N-sec

    Thrust Duration: 0.57 seconds

    Delay Time: adjustable up to 14 seconds

    Propellant Weight: 145 grams

    Motor Weight: 315 grams

    Maximum Liftoff Weight: Due to the variables involved, AeroTech/Quest currently does not list or post recommended maximum lift-off weights for their mid-power and high-power rocket motors. Instead, we recommend utilizing either the RockSim software available at www.apogeerockets.com or OpenRocket Simulator available at www.openrocket.info.

Before you pay

Check the method and total at checkout.

When it ships

Allow for processing time as well as the journey to you.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

View policy
If you need a refund

Keep your order number and contact the store to start.

Please contact us for the refund processing timeframe before returning an item.

View policy
Delivery costs

Review the cost for your destination and chosen service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Returning an item

Check the return conditions before sending anything back.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (4.6 / 5 · 5 reviews)

Leo H. ★★★★★

The kit went together in about ten minutes with no special tools, and both flights ignited cleanly on the first try. Being able to toss the whole thing after one launch is a game changer for quick trips to the field.

Michael ★★★★★

Assembling it took maybe ten minutes and the fit was snug with no wobble. Flew it in my 38mm mount and the burn was smooth the whole way up. Nice not having to clean a casing afterward.

Adam ★★★★★

The all-disposable nozzle and propellant mean zero cleanup afterward, which I appreciate way more than I expected. Fit together cleanly on the first try and the 38mm casing seated perfectly in my adapter.