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Estes B4-4 (3 ea) Model Rocket Motors - 1602 ^'

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Estes B4-4 (3 ea) Model Rocket Motors - 1602 ^'

	Everyone
	12+

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Item #: EST1602

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FeaturesThis item has special shipping requirements due to federal law. All orders including Mini through D engines and/or igniters are shipped ground hazmat by USPS Parcel Post. Delivery may take 5 to 12 business days or more with no extra shipping charges. For faster delivery (approximately 5 or less business days), UPS Hazmat ground shipping is available for an additional fee. Free shipping promotions do not apply to orders with engines and/or igniters. Please see our shipping information page for more details.

The Estes B4-4 engine is single stage engine designed for successful 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, 3 igniters and 4 igniter plugs.

Estes model rocketry is recommended for ages 10 and up with adult supervision for those under 12. Must be 14 to purchase in California, New Jersey, and North Dakota. Must be 16 to purchase in Rhode Island.

Optional Components

Replacement Parts

Technical

	WARNING: CHOKING HAZARD! Small parts. Not intended for children under 3 years of age.
	Product image and description is provided by the manufacturer, and is as accurate as possible. Some details of the product may be subject to change without notice (graphics, decoration, wheel color, etc.). eHobbies is not responsible for these changes, as it does not alter the function or value of the product.

Specifications

	Diameter: 0.69 inches
	Length: 2.75 inches
	Total Impulse: 5.00 N-sec
	Time Delay: 4 seconds
	Max. Lift Weight: 3.5 ounces
	Max Thrust: 3.0 pounds
	Thrust Duration: 1.1 seconds
	Initial Weight: 0.68 ounces
	Propellant Weight: 0.27 ounces

Product Reviews

Q & A

COMMENT: was required by Jonathan A 11/3/2012

COMMENT: Suggested on rocket box by Verne W 6/17/2012

COMMENT: The boys first model rockets. Good Deal also by Jack S 3/10/2012

COMMENT: required accessory by Linda U 12/22/2011

COMMENT: Use these and you won't lose your rocket by H U 12/6/2011

COMMENT: for the grandkids by Stephen S 12/3/2011