ESTES 10025 C11-3 Model Rocket Engines (Ships USPS Ground Only) Steam Loco - 2-6-6-6 Replaces stock ARRMA ARA330249

Replaces stock ARRMA ARA330249

" The ship is molded in metallic gumetal gray

95 inches (151 mm)

If you've got a transformer with a whistle and bell button

ESTES 10025 C11-3 Model Rocket Engines (Ships USPS Ground Only) Steam Loco - 2-6-6-6 Replaces stock ARRMA ARA330249ESTES 10025 C11 3 Model Rocket Engines Ships USPS Ground Only The Estes C11 3 Engines deliver powerful, reliable thrust for mid sized model rockets. With a total impulse of 10. 00 Ns and a 3 second delay, theyre perfect for heavier rockets that need a strong boost without reaching extreme altitudes. Ideal for intermediate and advanced rocketeers, the C11 3 bridges the gap between B and D engines, offering controlled, consistent flights and smooth