D12-7 Standard Engine (2)
$13.49
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D12-7 Standard Engine (2)
$13.49
24mm Diameter
Fits Standard 24mm Mounts
7 Sec Delay
Optimal High Altitude Coasting
7.4 lbs Thrust
32.9 Newtons Peak Thrust
D Power Class
20 N-sec Total Impulse
Complete Pack
Includes Starters And Plugs
8 oz Capacity
Designed For Light Models
Special Order Available
Launch Into High AltitudeReliable Propulsion For Model Rockets
Power your high-flying rocketry projects with the Estes D12-7 Standard Engine. Designed for single-stage model rocket applications, this 24mm model rocket engine delivers consistent propulsion and reliable recovery deployment for lightweight rockets weighing less than 8 ounces.
Maximum Impulse PerformanceEngineered For High Altitude Coasting
The Estes D12-7 Standard Engine offers robust D-class total impulse (20.00 N-sec) paired with a 7-second time delay built for high-altitude coasting before ejection charge ignition. Perfect for custom rocketry builds and standard 24mm motor mounts, each Estes engine package comes complete with 2 engines, 2 starters, and 4 starter plugs to ensure smooth and successful launches.
Engine SpecificationsTechnical Flight Metrics And Dimensions
Motor Type
D Class Single-Stage Rocket Motor
Diameter
24 mm
Length
2.75 in. / 7 cm
Total Impulse
20.00 N-sec
Time Delay
7 Seconds
Max Thrust
32.90 Newtons / 7.4 lbs
Thrust Duration
1.60 Seconds
Estimated Max Lift Weight
8.0 oz / 226 g
Propellant Weight
0.85 oz / 24.2 g
Initial Weight
1.62 oz / 45.9 g
Quantity Per Pack
2
Key Launch CapabilitiesBuilt For Safe Reliable Flights
Motor CasingStandard 24mm diameter fitment
Total PowerPowerful D-class impulse producing 20.00 N-sec output
Delay PhaseExtended 7-second coast delay ideal for light rockets
Included HardwareComes with 2 engines, 2 starters, and 4 starter plugs
Weight CapacitySupports maximum launch weights up to 8.0 ounces
Single-Stage DesignBuilt specifically for single-stage rocketry applications
Frequently Asked QuestionsEverything you need to know
What type of model rockets are compatible with the Estes D12-7 Standard Engine?
The Estes D12-7 Standard Engine is designed for single-stage model rockets that accept standard 24mm engine mounts and have a maximum liftoff weight of less than 8.0 ounces.
What does the 7 indicate in the Estes D12-7 Standard Engine name?
The '7' in the Estes D12-7 Standard Engine designates a 7-second time delay between motor burnout and ejection charge deployment, allowing lightweight rockets extra time to coast to peak altitude.
What comes included in each pack of the Estes D12-7 Standard Engine?
Each package of the Estes D12-7 Standard Engine includes 2 model rocket engines, 2 starters, and 4 starter plugs to ensure proper electrical launch setup.