B6-4 Model Rocket Engine Flight Pack
Couldn't load pickup availability
Ready to boost your mid-sized model rockets? The Estes B6-4 Engine Flight Pack delivers consistent performance with a 4-second delay and 0.8-second thrust duration-great for rockets up to 4.0 oz. With a total impulse of 5.00 N-sec, it offers a reliable balance of power and stability for hobbyists of all skill levels.
Each pack includes 3 B6-4 engines, 4 starters, 4 plugs, and 12 sheets of recovery wadding. It's everything you need for multiple launches, all in one convenient kit.
Includes:
- 3 B6-4 Engines
- 4 Starters
- 4 Starter Plugs
- 12 Sheets of Recovery Wadding
Overview
The Estes B6-4 Engine Flight Pack is an ideal upgrade for rocketeers ready to launch mid-size model rockets with reliable power and performance. With a total impulse of 5.00 N-sec and a thrust duration of 0.8 seconds, these engines are built to deliver strong takeoffs and smooth mid-flight transitions for a wide range of rocket kits. Each engine is equipped with a 4-second delay, allowing for optimal coast time before deployment.
Capable of lifting rockets up to 4.0 ounces (113 grams), the B6-4 engine is perfect for mid-weight models that require a balance of power and stability. Whether you're experimenting with new designs or flying a trusted favorite, this engine offers consistent launches and dependable ejection timing. The max thrust of 12.10 newtons (2.7 lbs) gives your rocket the punch it needs to get airborne fast.
Each flight pack comes with everything you need for multiple launches: 3 B6-4 engines, 4 starters, 4 starter plugs, and 12 sheets of recovery wadding. With all components conveniently included, you can spend more time building and flying, and less time gathering materials. The recovery wadding helps protect your parachute or streamer from the engine’s ejection charge, ensuring your rocket is ready for its next flight.
If you're looking to elevate your next launch with a tried-and-true engine that delivers solid performance, the B6-4 is a go-to favorite among hobbyists. With its balanced power and ideal delay, it’s a versatile choice for a wide range of rocket designs.
ATTENTION: Estes Industries, LLC and Echo Six 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 and Echo six 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.
Orders are prepared and shipped as quickly as possible after payment is confirmed. We carefully package toys and collectibles to help protect both the item and its packaging during transit.
Shipping rates and available delivery methods are shown at checkout. Tracking information is provided when available after the order has been processed for shipment.
Delivery times may be affected by weekends, holidays, weather, carrier delays, or other events outside our control.
Returns
Please contact us before sending any item back.
Returned items should be in the same condition in which they were received. Products sold as new and unopened should remain unopened unless the return involves damage, a defect, or an incorrect item.
For complete details, please review our Shipping Information and Returns & Refunds pages.
We understand that packaging condition can be important to collectors.
Unless otherwise stated in the product description, items listed as new are sold in unopened packaging. Packaging may show minor shelf wear, edge wear, small bends, scuffs, scratches, sticker residue, or other minor imperfections caused by manufacturing, retail handling, storage, or shipping.
Please review all available product photos carefully before purchasing. The photographs are an important part of the product description and help show the actual item's appearance and packaging condition.
Collectors looking for a particular card, box, blister, or packaging condition should contact us before ordering with any questions about a specific item.