{"title":"Estes A-Class Model Rocket Engines","description":"\u003cp\u003eShop verified Estes A-class model rocket engines by exact motor designation and delay. This page is limited to A-impulse engines so shoppers can compare A3, A8, A10, booster, and delayed-ejection options without mixing higher or fractional impulse classes into the same category.\u003c\/p\u003e\u003ch2\u003eMatch the complete motor code\u003c\/h2\u003e\u003cp\u003eThe letter A identifies the total impulse class, but the remaining numbers still matter. Average thrust, delay time, motor diameter, and the rocket's approved-motor list determine whether a specific A motor belongs in a particular rocket and flight configuration. Never substitute one A-class designation for another without checking the exact manufacturer instructions.\u003c\/p\u003e\u003ch2\u003eMini-motor and standard-diameter choices\u003c\/h2\u003e\u003cp\u003eA-class motors can appear in more than one physical diameter and with different delay or booster functions. Use the motor diameter, complete designation, package quantity, and manufacturer part number on each product page as the final buying reference.\u003c\/p\u003e\u003cp\u003eBrowse all \u003ca href=\"\/collections\/estes-model-rocket-engines\"\u003eEstes model rocket engines\u003c\/a\u003e, compare \u003ca href=\"\/collections\/model-rocket-kits\"\u003emodel rocket kits\u003c\/a\u003e, or start with \u003ca href=\"\/collections\/model-rocket-launch-sets\"\u003ecomplete model rocket launch sets\u003c\/a\u003e. Motor shipping restrictions and destination limits may apply.\u003c\/p\u003e","products":[{"product_id":"estes-a3-2t-engines-10012","title":"Estes A3-2T Engines #10012","description":"\u003cp\u003e\u003cstrong\u003eFour-pack of Estes A3-2T 13 mm mini engines for exact-compatible lightweight model rockets.\u003c\/strong\u003e This is the current Estes #10012 retail pack.\u003c\/p\u003e\u003ch2\u003eWhat is included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e4 Estes A3-2T engines\u003c\/li\u003e\n\u003cli\u003e4 starters\u003c\/li\u003e\n\u003cli\u003e4 starter plugs\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eRecovery wadding, the rocket, launch pad, controller and controller batteries are not included.\u003c\/p\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003cp\u003eThe A3-2T is a single-stage mini engine with a two-second delay. Estes rates it for compatible rockets up to 2.0 ounces. Use it only when the exact current instructions for the rocket list \u003cstrong\u003eA3-2T\u003c\/strong\u003e; the motor letter alone does not establish compatibility.\u003c\/p\u003e\u003ch2\u003eStill required\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eA compatible rocket whose instructions approve A3-2T\u003c\/li\u003e\n\u003cli\u003eThe correct launch pad, rod and electrical controller\u003c\/li\u003e\n\u003cli\u003eController batteries and recovery wadding when required by the rocket\u003c\/li\u003e\n\u003cli\u003eA suitable outdoor launch field and appropriate adult supervision\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eMotor shipping\u003c\/h2\u003e\u003cp\u003eA physical delivery address is required. Model rocket motors can have carrier, service and destination restrictions; available delivery options are confirmed for the shipping address at checkout.\u003c\/p\u003e","brand":"Estes","offers":[{"title":"Default Title","offer_id":53046642213176,"sku":"EST10012","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0021\/6049\/2625\/files\/010012-A3-2T-Model-Rocket-Engines-Plugs-Ignitors.jpg?v=1790553158"},{"product_id":"estes-a3-4t-engines-10013","title":"Estes A3-4T Engines #10013","description":"\u003cp\u003e\u003cstrong\u003eEstes A3-4T Engines #10013\u003c\/strong\u003e is a four-pack of 13 mm single-stage mini model-rocket engines with a four-second delay.\u003c\/p\u003e\u003ch2\u003ePackage contents\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e4 Estes A3-4T engines\u003c\/li\u003e\n\u003cli\u003e4 starters\u003c\/li\u003e\n\u003cli\u003e4 starter plugs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003cp\u003eUse this motor only when the complete \u003cstrong\u003eA3-4T\u003c\/strong\u003e designation appears in the current instructions for the exact rocket. The rocket, launch system, controller batteries and recovery wadding are not included.\u003c\/p\u003e\u003cp\u003eA physical delivery address is required. Carrier, service and destination restrictions can apply to model-rocket motors.\u003c\/p\u003e","brand":"Estes","offers":[{"title":"Default Title","offer_id":53046642245944,"sku":"EST10013","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0021\/6049\/2625\/files\/010013-A3-4T-Engines-Plugs-Ignitors.jpg?v=1790553158"},{"product_id":"estes-a3-6t-engines-10014","title":"Estes A3-6T Engines #10014","description":"\u003cp\u003e\u003cstrong\u003eEstes A3-6T Engines #10014\u003c\/strong\u003e is a four-pack of 13 mm single-stage mini model-rocket engines with a six-second delay.\u003c\/p\u003e\u003ch2\u003ePackage contents\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e4 Estes A3-6T engines\u003c\/li\u003e\n\u003cli\u003e4 starters\u003c\/li\u003e\n\u003cli\u003e4 starter plugs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003cp\u003eUse this motor only when the complete \u003cstrong\u003eA3-6T\u003c\/strong\u003e designation appears in the current instructions for the exact rocket. A longer delay is not interchangeable with another motor code. The rocket, launch system, controller batteries and recovery wadding are not included.\u003c\/p\u003e\u003cp\u003eA physical delivery address is required. Carrier, service and destination restrictions can apply to model-rocket motors.\u003c\/p\u003e","brand":"Estes","offers":[{"title":"Default Title","offer_id":53046642278712,"sku":"EST10014","price":12.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0021\/6049\/2625\/files\/010014-A3-6T-Rocket-Engines-Plugs-Ignitors.jpg?v=1790553160"},{"product_id":"estes-a10-3t-engines-10015","title":"Estes A10-3T Engines #10015","description":"\u003cp\u003e\u003cstrong\u003eEstes A10-3T Engines #10015\u003c\/strong\u003e is a four-pack of 13 mm single-stage mini model-rocket engines with a three-second delay.\u003c\/p\u003e\u003ch2\u003ePackage contents\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e4 Estes A10-3T engines\u003c\/li\u003e\n\u003cli\u003e4 starters\u003c\/li\u003e\n\u003cli\u003e4 starter plugs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003cp\u003eUse this motor only when the complete \u003cstrong\u003eA10-3T\u003c\/strong\u003e designation appears in the current instructions for the exact rocket. The impulse class, thrust designation, delay and motor diameter are not interchangeable. The rocket, launch system, controller batteries and recovery wadding are not included.\u003c\/p\u003e\u003cp\u003eA physical delivery address is required. Carrier, service and destination restrictions can apply to model-rocket motors.\u003c\/p\u003e","brand":"Estes","offers":[{"title":"Default Title","offer_id":53046642344248,"sku":"EST10015","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0021\/6049\/2625\/files\/010015-A10-3T-Engines-Plugs-Ignitors.jpg?v=1790553161"},{"product_id":"estes-a8-3-engines-10017","title":"Estes A8-3 Engines #10017","description":"\u003cp\u003e\u003cstrong\u003eEstes A8-3 Engines #10017\u003c\/strong\u003e is a three-pack of standard 18 mm single-stage model-rocket engines with a three-second delay.\u003c\/p\u003e\u003ch2\u003ePackage contents\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e3 Estes A8-3 engines\u003c\/li\u003e\n\u003cli\u003e4 starters\u003c\/li\u003e\n\u003cli\u003e4 starter plugs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003cp\u003eUse this motor only when the complete \u003cstrong\u003eA8-3\u003c\/strong\u003e designation appears in the current instructions for the exact rocket. The rocket, launch system, controller batteries and recovery wadding are not included.\u003c\/p\u003e\u003cp\u003eA physical delivery address is required. Carrier, service and destination restrictions can apply to model-rocket motors.\u003c\/p\u003e","brand":"Estes","offers":[{"title":"Default Title","offer_id":53046642409784,"sku":"EST10017","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0021\/6049\/2625\/files\/010017-A8-3-Engines-Bag.jpg?v=1790553164"},{"product_id":"estes-a8-5-engines-10036","title":"Estes A8-5 Engines #10036","description":"\u003cp\u003e\u003cstrong\u003eEstes A8-5 Engines #10036\u003c\/strong\u003e is a three-pack of standard 18 mm single-stage model-rocket engines with a five-second delay.\u003c\/p\u003e\u003ch2\u003ePackage contents\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e3 Estes A8-5 engines\u003c\/li\u003e\n\u003cli\u003e4 starters\u003c\/li\u003e\n\u003cli\u003e4 starter plugs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003cp\u003eUse this motor only when the complete \u003cstrong\u003eA8-5\u003c\/strong\u003e designation appears in the current instructions for the exact rocket. The rocket, launch system, controller batteries and recovery wadding are not included.\u003c\/p\u003e\u003cp\u003eA physical delivery address is required. Carrier, service and destination restrictions can apply to model-rocket motors.\u003c\/p\u003e","brand":"Estes","offers":[{"title":"Default Title","offer_id":53046642934072,"sku":"EST10036","price":12.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0021\/6049\/2625\/files\/010036-A8-5-Engines-Plugs-Ignitors.jpg?v=1790553184"},{"product_id":"estes-a10-0t-engines-10044","title":"Estes A10-0T Engines #10044","description":"\u003cp\u003e\u003cstrong\u003eEstes A10-0T Engines #10044\u003c\/strong\u003e is a four-pack of 13 mm booster motors for exact-compatible staged model rockets.\u003c\/p\u003e\u003ch2\u003ePackage contents\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e4 Estes A10-0T booster engines\u003c\/li\u003e\n\u003cli\u003e4 starters\u003c\/li\u003e\n\u003cli\u003e4 starter plugs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eBooster-only compatibility\u003c\/h2\u003e\u003cp\u003eThe A10-0T has no timed delay and is intended for the booster stage of a compatible staged rocket. Use it only when the exact current instructions list \u003cstrong\u003eA10-0T\u003c\/strong\u003e and identify the approved upper-stage motor. The rocket, launch system, controller batteries and recovery supplies are not included.\u003c\/p\u003e\u003cp\u003eA physical delivery address is required. Carrier, service and destination restrictions can apply to model-rocket motors.\u003c\/p\u003e","brand":"Estes","offers":[{"title":"Default Title","offer_id":53046643196216,"sku":"EST10044","price":11.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0021\/6049\/2625\/files\/010044-A10-0T-13mm-Rocket-Engines-Plugs-Ignitors.jpg?v=1790553194"},{"product_id":"estes-a8-0-engines-10045","title":"Estes A8-0 Engines #10045","description":"\u003cp\u003e\u003cstrong\u003eThree-pack of Estes A8-0 18 mm booster engines for exact-compatible staged model rockets.\u003c\/strong\u003e This is the current Estes #10045 retail pack.\u003c\/p\u003e\u003ch2\u003eWhat is included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e3 Estes A8-0 booster engines\u003c\/li\u003e\n\u003cli\u003e4 starters\u003c\/li\u003e\n\u003cli\u003e4 starter plugs\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eRecovery wadding, the rocket, launch pad, controller and controller batteries are not included.\u003c\/p\u003e\u003ch2\u003eBooster-only compatibility\u003c\/h2\u003e\u003cp\u003eThe A8-0 has no timed delay and no recovery-system ejection charge. It is intended only for the booster stage of a compatible multi-stage rocket whose exact current instructions list \u003cstrong\u003eA8-0\u003c\/strong\u003e. Do not substitute it for a standard single-stage motor.\u003c\/p\u003e\u003ch2\u003eStill required\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eA compatible staged rocket whose instructions approve A8-0\u003c\/li\u003e\n\u003cli\u003eAn approved upper-stage motor selected from the exact instructions\u003c\/li\u003e\n\u003cli\u003eThe correct launch pad, rod and electrical controller\u003c\/li\u003e\n\u003cli\u003eController batteries, recovery supplies and a suitable launch field\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eMotor shipping\u003c\/h2\u003e\u003cp\u003eA physical delivery address is required. Model rocket motors can have carrier, service and destination restrictions; available delivery options are confirmed for the shipping address at checkout.\u003c\/p\u003e","brand":"Estes","offers":[{"title":"Default Title","offer_id":53046643360056,"sku":"EST10045","price":12.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0021\/6049\/2625\/files\/010045-A8-0-Rocket-Engines-Plugs-Ignitors.jpg?v=1790553196"},{"product_id":"estes-blast-off-engine-bulk-pack-1672","title":"Estes Blast-Off® Engine Bulk Pack #1672","description":"\u003cp\u003e\u003cstrong\u003eEstes Blast-Off® Engine Bulk Pack #1672\u003c\/strong\u003e is a 24-engine mixed flight-supply pack for classrooms, clubs, camps and repeat launch days.\u003c\/p\u003e\u003ch2\u003eVerified package contents\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e6 A8-3 engines\u003c\/li\u003e\n\u003cli\u003e6 B6-4 engines\u003c\/li\u003e\n\u003cli\u003e6 C6-3 engines\u003c\/li\u003e\n\u003cli\u003e6 C6-5 engines\u003c\/li\u003e\n\u003cli\u003e30 starters\u003c\/li\u003e\n\u003cli\u003e75 sheets of recovery wadding\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eComplete the launch system\u003c\/h2\u003e\u003cp\u003eThe pack does not include rockets, a launch pad, a launch controller or controller batteries. Match each complete motor designation to the current instructions for the exact rocket. A physical delivery address is required, and carrier, service or destination restrictions may apply to model-rocket motors.\u003c\/p\u003e","brand":"Estes","offers":[{"title":"Default Title","offer_id":53046644408632,"sku":"EST1672","price":114.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0021\/6049\/2625\/files\/1672-Blast-Off-Engine-Bulk-Pack-1.jpg?v=1790553232"}],"url":"https:\/\/munclemikes.com\/collections\/estes-a-class-rocket-engines.oembed","provider":"Muncle Mikes","version":"1.0","type":"link"}