Estes D12-3 Model Rocket Engines (3pk) (EST10027)
$14.99
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In Store Only
Estes D12-3 Model Rocket Engines (3pk) (EST10027)
$14.99
Pickup In Store Only
Too large to ship. Store pickup only in Cumming.
Pick up today in Cumming, usually ready in 2 hours.
Engine Size
Fits Standard 24mm Mounts
Max Lift Capacity
Up To 14 Ounces
Ejection Delay
Optimal 3 Second Timing
Pack Quantity
Includes Two Engine Units
High Thrust
Consistent Reliable Rocket Power
Single Stage Power
Ideal For Mid Power Rockets
Launch CapabilitiesPower Your Scale Rocket Launches
Take your rocketry builds to higher altitudes with the Estes D12-3 Model Rocket Engines (2pk). Designed specifically for single-stage launches, these powerful 24mm model rocket engines deliver consistent thrust and maximum reliability for rockets under 14 ounces. Perfect for popular kits like the Big Daddy, Super Big Bertha, and Majestic, these engines ensure high-performance launches every time.
Engine Performance DetailsReliable Thrust for High Flying Models
The Estes D12-3 Model Rocket Engines (2pk) are engineered to deliver high-performance flight with reliable ignition and a predictable burn rate. Featuring a standard 24mm casing diameter (2.75 inches long), each model rocket engine provides the ideal impulse for mid-size rocket kits requiring a 3-second ejection delay. Experience smooth coasting phases and timely parachute deployment, ensuring your scale rocket model returns safely to the launch pad after reaching peak altitude.
Technical SpecificationsDetailed Rocket Motor Data Points
Engine Diameter
24mm (0.94 in) (gear)
Engine Length
2.75 in (7.0 cm) (ruler)
Engine Type
Single Stage D-Class Motor
Time Delay
3 Seconds
Maximum Lift Weight
14.0 oz (396 g) (weight)
Quantity
2 Engines per Pack
Compatible Models
Big Daddy, Super Big Bertha, Majestic, Mars Longship
Key Rocketry FeaturesEngineered For Peak Launch Reliability
24mm Mount CompatibilityDesigned for model rockets with 24mm motor tubes
High Performance ThrustDelivers powerful lift for model rockets under 14 ounces
Reliable IgnitionConsistent ignition behavior for safe and predictable launches
Consistent Burn RateEngineered for smooth acceleration and stable flight paths
3-Second Ejection DelayOptimal timing for proper recovery system deployment
Durable ConstructionBuilt to withstand high chamber pressures during ascent
Multi-Kit SupportIdeal power choice for popular Estes rocket kits
Frequently Asked QuestionsEverything you need to know
What rocket kits are compatible with the Estes D12-3 Model Rocket Engines?
The Estes D12-3 Model Rocket Engines are designed for model rockets equipped with 24mm motor mounts and a total lift weight under 14 ounces, including kits like the Big Daddy, Super Big Bertha, Majestic, and Mars Longship.
What does the '3' signify in the Estes D12-3 Model Rocket Engines name?
In the Estes D12-3 Model Rocket Engines designation, the '3' represents a 3-second delay between the end of the powered thrust phase and the triggering of the parachute ejection charge.
How many motors are included with the Estes D12-3 Model Rocket Engines package?
Each package of the Estes D12-3 Model Rocket Engines (2pk) includes two complete 24mm single-stage rocket engines.
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