Estes Rockets B4-4 Engines
Free Shipping on Orders of $135 or more!
- Launch your next model rocket on Estes Rockets B4-4 Engines
- Each package includes 3 engines, 4 starters and 4 starter plugs
- Total Impulse: 5.00 N-sec
- Max Thrust: 13.2 Newtons
- Can only be shipped via USPS Parcel Select Ground. No international shipping is allowed.
The Estes Rockets B4-4 Engines is for rockets weighing less than 3.5 ounces, including the engine. The package includes 3 engines, 4 starters and 4 starter plugs. Max thrust is 13.2 Newtons. And, these engines only ship USPS Parcel Select Ground.