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Estes Rockets
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Engines
> B4-4 (2-pack) Model Rocket Motors
B4-4 (2-pack) Model Rocket Motors
B4-4 (2-pack) Model Rocket Motors
Part Number:
QUS6112
Manufacturer's Part Number:
QUS6112
Availability:
In Stock
Location: ;
3
Review(s)
5
/
5
stars
Price
Your Price:
$7.95
Retail Price:
$8.99
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$1.04
(12%)
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Description
Customer Reviews
B4-4 Q-Jet 2-pack 18mm model rocket motors. Includes initiators and wadding.
The Q-Jets are the world's most advanced 18mm model rocket motors. They utilize a patent pending high-strength polymer case and bulkhead, ceramic nozzle and RCSs exclusive Black Max aerospace- grade composite propellant formulation, which produces nearly double the specific impulse (or "Isp", a propellant efficiency rating) of conventional black powder propellant. They are not susceptible to thermal cycling like black powder motors. Q-Jets generate a highly-visible exhaust plume and delay smoke trail. All Q-Jets ship with a FirstFire Micro 2-lead initiator, which can be used with any launch controller. All Q-Jet motors are U.S. mailable with no hazmat fee!
Specifications:
Motor Diameter: 0.703" (18mm)
Casing Length: 2.75" (70mm)
Propellant Weight: 3.6 grams
Motor Weight: 19.8 grams
Maximum Liftoff Weight: 85 grams
Did you find this helpful?
Reviewed by:
Dr. Belinda Roberts
on 5/19/2020
5
/
5
Did you find this helpful?
Reviewed by:
Dustin Berry
on 11/9/2019
5
/
5
Did you find this helpful?
Reviewed by:
Alijah Weiss
on 4/28/2017
5
/
5
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