{"product_id":"c11-3-engine-bulk-pack","title":"C11-3 Engine Bulk Pack","description":"\u003ch2\u003e\u003cspan data-sheets-root=\"1\"\u003eC11-3 Engines (12 pk) \u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eGrades: 4–12+ \u003c\/li\u003e\n\u003cli\u003eNumber of Students: 1–30\u003c\/li\u003e\n\u003cli\u003eNumber of Lessons: NA\u003c\/li\u003e\n\u003cli\u003eHours of Content: NA\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 170, 255);\"\u003e\u003cstrong\u003eHighlights:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eLaunch farther and faster with the C11-3 Engine Bulk Pack, a 12-pack of dependable, high-performance C-class rocket engines designed for hobbyists, backyard flyers, and families who want exciting, repeatable flights. These engines deliver a lively boost and a clean 3-second delay for consistent apogee and reliable parachute deployment, making them perfect for weekend launch sessions and group events.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 170, 255);\"\u003e\u003cstrong\u003eCurriculum or Lesson Topics:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe C11-3 Engine Bulk Pack gives you twelve ready-to-fly C-class motors engineered for consistent lifts and eye-catching altitudes. Each motor produces a strong but controllable burst of thrust and a 3-second delay that works well with medium-weight rockets — ideal for weekend hobbyists, family launch days, and solo flyers who want exciting flights without stepping up to larger, more complex powerplants.\u003c\/p\u003e\n\u003cp\u003eBeyond raw numbers, the C11-3 shines because of its reliability and repeatability. Whether you’re testing trim changes, teaching a new builder the basics, or simply chasing higher flights, these engines reduce the variability that can spoil a flight day. The familiar, crisp ignition and predictable delay let you tune recovery systems with confidence so recovery is clean and repairs are minimal.\u003c\/p\u003e\n\u003cp\u003eTechnically tuned for mid-to-high altitude performance, the C11-3 offers a total impulse of 10.00 N·s, peak thrust suitable for rockets with a max lift weight around 6.0 oz (170 g), and a short 0.80 second thrust duration that gets rockets off the pad quickly. Dimensionally these are standard 24 mm diameter motors — a match for many of our popular mid-size kits and ideal for repeat launches during a club meet or family outing.\u003c\/p\u003e\n\u003cp\u003eSafety-first and user-friendly, these bulk packs include starters, starter plugs, and plenty of recovery wadding so your focus stays on flying. Always follow Estes and NAR safety guidelines when handling and installing motors, and store engines in a cool, dry place. Ready to step up your launch day? The C11-3 bulk pack is a reliable way to fill your flight schedule with consistent, thrilling launches.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 170, 255);\"\u003e\u003cstrong\u003eWhat’s Included:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eWhat makes the C11-3 special is its blend of power and predictability: more thrust than an A or B motor but still tame enough for safe, fun flights with mid-size rockets. Builders and flyers will appreciate how consistently these motors perform, so you spend less time troubleshooting and more time sharing great flights with friends, family, or students.\u003c\/p\u003e\n\u003cdl\u003e\n\u003cdt\u003eIncludes:\u003c\/dt\u003e\n\u003cdd\u003e12 × C11-3 Engines\u003c\/dd\u003e\n\u003cdd\u003e20 × Starters\u003c\/dd\u003e\n\u003cdd\u003e16 × Starter Plugs\u003c\/dd\u003e\n\u003cdd\u003e144 × Squares of Recovery Wadding\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 170, 255);\"\u003e\u003cstrong\u003eTechnology Requirements\/Specifications:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"ecom-block ecom-core core__block elmspace ecom-etrdtoji5a\"\u003e\n\u003cdiv data-v-6a92e952=\"\" class=\"ecom__element ecom-element element__code exporting\"\u003eReview the full specifications for the C11-3 Engines, including impulse, thrust duration, delay, and physical dimensions.\u003c\/div\u003e\n\u003cdiv data-v-6a92e952=\"\" class=\"ecom__element ecom-element element__code exporting\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0516\/9142\/1854\/files\/Tech_Spec_8546dc2b-61e1-404b-a8c9-f579e9874493.jpg?v=1784836708\" alt=\"\"\u003e\u003c\/div\u003e\n\u003cdiv data-v-6a92e952=\"\" class=\"ecom__element ecom-element element__code exporting\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 170, 255);\"\u003e\u003cstrong\u003eSpecial Notes and Considerations:\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv class=\"ecom-block ecom-core core__block elmspace ecom-rwbwnv1g15 short-description\"\u003e\n\u003cdiv data-v-6a92e952=\"\" class=\"ecom__element ecom-element element__code exporting\"\u003e\n\u003cp class=\"eng-ship-res\"\u003e\u003cstrong\u003ePLEASE NOTE:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eYou must have a physical address for delivery.\u003c\/p\u003e\n\u003cp class=\"eng-ship-res\"\u003e\u003cstrong\u003eATTENTION:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003cem\u003eEstes Industries, LLC requires all purchasers and users of Estes® Model Rocket Engines to adhere strictly to all applicable local, state, and federal laws, regulations, and safety standards. The user assumes all responsibility for the safe and lawful use of Estes® products. Estes Industries, LLC expressly disclaims any and all liability for personal injury, property damage, or other loss resulting from the misuse, improper handling, or unauthorized application of its model rocket engines.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Estes Rockets","offers":[{"title":"Default Title","offer_id":50964731592951,"sku":"ECC-1726","price":82.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0516\/9142\/1854\/files\/1726_C11-3_Box.webp?v=1784836725","url":"https:\/\/stemfinity.com\/products\/c11-3-engine-bulk-pack","provider":"STEMfinity","version":"1.0","type":"link"}