Estes Rockets - F15-6 29mm Model Rocket Engines (2pk) HPI106149 not least for STEM work

not least for STEM work with those studying the application of programming in the classroom

If you think drifting is difficult

- Replacement bearings are Traxxas 5118 and 5107A

100mAh Battery

Estes Rockets - F15-6 29mm Model Rocket Engines (2pk) HPI106149 not least for STEM workTake your mid powered rocket flights to new heights with the Estes F15 6 Engine. This 29mm engine packs an impressive 49. 61 N sec total impulse and delivers a maximum thrust of 25. 26 Newtons giving your rockets the boost they need for strong, stable launches. It's ideal for experienced modelers looking for consistent, long duration thrust and reliable performance across a wide variety of heavier rocket designs. With a 6 second delay between burnout