4 out of 4 found this review helpful.
When I used these engines with the "Wizard" rocket it went so high that I could not see it anymore. If you build your rocket well, your launch will be sucessful and not explode but if you build sloppy it will blow up. Due to these amazing aerodynamics and great engines it will hit 0-75 MPH in about 3.5 seconeds. Take it from me firsthand, I have a wizard and these engines and it flies like a real rocket ship.
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