E16-4 29mm Engine PSII (2) HAZ
$29.99
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In Store Only
E16-4 29mm Engine PSII (2) HAZ
$29.99
29mm Diameter
Fits mid power rocket mounts
4-Second Delay
Optimal coast time before ejection
Launch Pack
Includes starters and plugs
Pickup In Store Only
Launch-Ready PowerHigh performance model rocket propulsion
The Estes E16-4 Engine PSII provides reliable thrust for high-altitude model rocket flights. Designed for mid-power rockets, this 29mm model rocket engine excels as both an upper stage and single-stage power source.
Peak Altitude EngineEngineered for high performance flights
Take your rocketry builds higher with the Estes E16-4 Engine PSII. Delivering a total impulse of 33.68 N-sec and a peak thrust of 26.44 Newtons, this engine ensures powerful lift-offs and consistent flight paths. The 4-second time delay makes the Estes E16-4 rocket engine ideal for rockets requiring a mid-duration coast phase before deploying the recovery system. Every pack comes fully equipped with starters and starter plugs for launch-day convenience.
Technical SpecificationsDetailed engine measurements and metrics
Diameter
29 mm
Length
4.5 in. (11.4 cm) (ruler)
Total Impulse
33.68 N-sec (energy)
Time Delay
4 Seconds
Max Thrust
26.44 N / 5.9 lbs
Thrust Duration
2.09 Seconds
Propellant Weight
1.41 oz (40.0 g) (scale)
Initial Weight
2.86 oz (81.0 g) (weight)
Max Lift Weight
20.0 oz (566 g) (up)
Quantity Per Pack
2
Engine HighlightsKey performance details for launch
Versatile StagingFunctions as a single-stage or upper-stage engine
High ImpulseProduces 33.68 N-sec of total propulsion energy
Built-in Time Delay4-second coast period for optimal recovery deployment
Heavy Lift SupportSupports rocket launch weights up to 20 ounces
29mm Standard FitFits standard mid-power rocket motor mounts
Complete PackPackage includes 2 engines, 2 starters, and 4 starter plugs
Frequently Asked QuestionsEverything you need to know
What size rocket engine mount does the Estes E16-4 Engine PSII require?
The Estes E16-4 Engine PSII is a 29mm diameter motor and requires a standard 29mm model rocket motor mount tube.
What accessories are included with the Estes E16-4 Engine PSII?
Each pack of the Estes E16-4 Engine PSII comes with 2 rocket engines, 2 starters, and 4 starter plugs.
What is the maximum recommended lift weight for the Estes E16-4 Engine PSII?
The maximum estimated lift weight for the Estes E16-4 Engine PSII is 20.0 ounces (566 grams).