We can transfer inventory between our Erin and Fergus stores when an item is out of stock for pickup at one location. Simply select your preferred pickup location during checkout. Order processing times may vary by location.
ENGINES FOR MODEL ROCKETS
3 – B4-4 Engines
4 – Starters
4 – Plugs
The Estes B4-4 engine is single stage engine designed for model rocket flight. This engine is a standard engine designed for flights in rockets weighing less than 3.5 ounces, including the engine. Each package includes 3 engines, 4 starters and 4 plugs.